COLOR RADIATION RECORDING METHOD AND DEVICE

TELEPRINTERS

Angled printer cartridge

A printer containing an angled printer cartridge (11) and a method of printing using the cartridge. The printer is an ink jet printer which includes a print media movement device (14) for moving a print media (16) through the printer along a print media path and a printer cartridge attached to the printer at an acute angle relative to an axis (Q) perpendicular to an axis (P) along the direction of the media path through the printer. The printer cartridge has a length sufficient to print substantially the entire width of the printed width across the print media and contains a plurality of printheads along at least a portion of the length thereof, each printhead having one or more nozzle arrays. During a printing operation, only a portion of the printheads along the length of the cartridge are activated, thus reducing power consumption during printing. Angling the printer cartridge also has the advantage of increasing the print quality without increasing the density of nozzles in the nozzle ...

Printing device

Provision of a printing device having simple structure but being able to perform an exact and beautiful printing of designs and letters on a printed face of a doughnut-like shape such as a sidewall of a vehicular tire although. The printing device having a turntable for turning a mounted printing object so that its printed face is directed upward, a printing head having a plurality of nozzles for spouting inks and being able to move toward a center of rotation of the printing object from outside the rotation of the printed face, and a controller provided for controlling a moving speed of the printing head, a rotating speed of the turntable, and spouting of the inks by the plurality of the nozzles, to perform a controlling operation in a manner such that a printing is spirally applied onto the printed face of the printing object by permitting the printing object mounted on the turntable to be rotated and by permitting the printing head to continuously move while allowing the plurality of ...

RECORDING METHOD AND - DEVICE

PROCEDURE FOR PRINTING PLATTENFÖRMIGER STORAGE MEDIUMS ON.

HALF-TONE RECORDING METHOD USING A COLOR RADIATION HEAD

BIASED SERIAL INK JET PRINTING SYSTEM FOR TEXTILES

A method is provided for using an ink jet printer to print on a textile substrate. One or more printheads are oriented to scan the width of the textile web at a bias angle. A different printhead can be used for each color ink, whereby the ink is projected across an air gap to the textile web during the scan. Arranging the multiple printheads for parallel scanning allows each printhead to scan a separate swath simultaneously. Additional scan widths can be left between printheads to allow for sufficient ink absorption or drying time prior to applying the next color.

DEVICE FOR PRECISE POSITIONING TO A DIVISION NEAR A CARRIAGE OF A PRINTER TELESCRIPTEURS OR THE LIKE

ARCUATE PRINTER

MULTIPLEX TYPEWRITER FOR TECHNICAL DRAWINGS

The invention provides a multiplex typewriter for lettering technical drawings in Standard Technical Style and Sizes as fixed by The National Standards for Lettering Technical Drawings using a new method whereby any "National Standard Alphabet and Numerals for Lettering Technical Drawings" may be used on typing element faces. The apparatus and method permit lettering drawings by typing, and having the following possibilities: (1) All standard sizes of technical drawings can be accommodated by the machine, (2) A single machine can use as many as nine different standard sizes of given national standard alphabet and numerals. In a particular embodiment several typing keyboards are mounted on a stationary table around a vertically movable and rotatable common platen, this platen sliding over a stationary column, being movable vertically by a group of mechanical means driven by step motor drive, and being rotatable by another group of mechanical means driven by separate step motor drive. These ...

Дуговое печатающее устройство

Hochauflösender Mehrfarbentintenstrahldrucker

VERFAHREN ZUM BEDRUCKEN PLATTENFOERMIGER INFORMATIONSTRAEGER

AUTOMATIC DISTRIBUTION SYSTEM FOR FRUIT EMPLOYING TILTABLE CONVEYOR BELT

PRINT CARRIAGE

A system and method for depositing a substance onto a continuously moving substrate in first and second transverse swathes, is achieved by providing a print carriage having a first set of inkjet heads and a second set of inkjet heads. The carriage is traversed across the substrate in a forward pass, while depositing the first and second swathes from the respective first and second plurality of inkjet heads and subsequently traversed across the substrate in a reverse pass. The first and second sets of inkjet heads are arranged such that the first and second swathes complement one another on both forward and reverse passes to provide substantially complete coverage of the substrate. In this manner complementary swathes may be deposited from a single head.

Tone recording method using ink recording head

A liquid jet recording method of recording on a recording material with liquid droplets discharged trough plural scanning nozzles, in which: n/(s/p)≧2 n/(s/p)×k=g-1 are satisfied, where n (n≧2) is a number of the nozzles arranged at pitch P (μm); s (μm) is a distance of relative movement between the nozzles and the recording material between adjacent scans; k (k≧1) is a maximum number of ink droplets per pixel and per scan; g (g≧3) is a number of tone levels.

Ink-jet recording method and ink-jet recording apparatus

A line of ink nozzles in an ink-jet recording head is inclined obliquely from a scanning line, and one pixel is formed by a plurality of ink droplets discharged from different ink nozzles. Thus, a high halftone recording image without stripes (banding) due to a variation of a discharged ink volume or unevenness of recording image density, can be obtained. Moreover, since there is a large degree of freedom in designing an amount of the discharged ink volume, high packing density of ink nozzles can be easily achieved.

Biased serial ink jet printing system for textiles

Method for printing on disc-shaped information carriers

Aufzeichnungsverfahren und -vorrichtung

ANGLED PRINTER CARTRIDGE

The specification describes a printer containing an angled printer cartridge and a method for printing using the cartridge. The printer is an ink jet printer which includes a print media movement device for moving a print media having through the printer along a print media path and a printer cartridge attached to the printer at an angle between 0.degree. and 90.degree. relative to an axis perpendicular to an axis along the direction of the media path through the printer. The printer cartridge has a length sufficient to print substantially the entire width of the printed width across the print media and contains a plurality of printheads along at least a portion of the length thereof, each printhead having one or more nozzle arrays. During a printing operation, only a portion of the printheads along the length of the cartridge are activated thus, reducing power consumption during printing. Angling the printer cartridge also has the advantage of increasing the print quality without increasing ...

System and method for digital creation of a print master using a multiple printhead unit

Printing system

A printhead 21 for an inkjet printer 10 having geometric features which reduce drop placement error of main 6 and satellite 8 drops ejected from the nozzles 82 of the printhead 21. Nozzles 82 that are tilted along an axis 85 corresponding to the direction of scanning of the printhead 21 while printing have reduced drop placement error 19' in the orthogonal direction 4 to the scanning, and create a breakoff velocity 5s for the satellite drop 8 that can cause the main 6 and satellite 8 drops to be placed in a coincident location on the medium 18 in one of the directions of scanning, thus forming desireable round printed spots and reducing drop placement error in the scan direction. These improvements can be repeatably achieved for all nozzles 82. Nozzles 82 with non-circular and asymmetric bores 82b-g also reduce drop placement errors, particularly when these types of nozzles 82 are also tilted.

Print carriage

A system and method for depositing a substance onto a continuously moving substrate in first and second transverse swathes, is achieved by providing a print carriage having a first set of inkjet heads and a second set of inkjet heads. The carriage is traversed across the substrate in a forward pass, while depositing the first and second swathes from the respective first and second plurality of inkjet heads and subsequently traversed across the substrate in a reverse pass. The first and second sets of inkjet heads are arranged such that the first and second swathes complement one another on both forward and reverse passes to provide substantially complete coverage of the substrate. In this manner complementary swathes may be deposited from a single head.

Attachment for typewriting machines

PRINT CARRIAGE

Устройство для позиционирования каретки

TELEPRINTERS

Print carriage

Liquid jet recording method using plural scanning nozzles and including first main scan, sub-scan, and second main-scan steps for recording pixels in tone

A liquid jet recording method for recording on a recording material with liquid droplets discharged through plural scanning nozzles arranged in a width measured in a direction of main scan. The recording method includes a first main scan by relative movement between the nozzles and the recording material, in which pixels are recorded with numbers of droplets through a nozzle, the numbers of droplets corresponding to respective tone signals. The method also includes a sub-scan by relative movement between the nozzles and the recording material in a direction crossing with a movement direction of the first main scan. The method further includes a second main scan in which the pixels are recorded with numbers of droplets through a different nozzle, the latter numbers of droplets corresponding to tone level signals. The sub-scan and second main scan steps are repeated to record a tone image by discharging plural droplets for a pixel.

Imaging method for printing forms

An imaging method for a printing form (32) is described, with one or more laser diode bars (10) with n individually controllable laser diodes (12) each of which are assigned to one imaging channel, in which the laser diodes (12) of a laser diode bar (10) are divided into a main field (14) of m and into an auxiliary field (16) of (n-m) laser diodes (12) in such a way that an imaging channel (44) in the auxiliary field (16) with a matching feed that can be activated is assigned to each imaging channel (44) in the main field (14) that cannot be activated. In order to create a row (40) of m printing dots (38) on a setting line (36) at even distances a by means of the imaging channels (44), printing dots (38) are set by the main field (14) at a first time, and by the auxiliary field (16) at least at a second time. The imaging channels (44) are shifted relative to the printing form (32) parallel to the setting line (36) between the imaging times. Also, a method for the determination of the largest ...

Recording apparatus and recording method

Each of pixels (No. 1 to N) of recorded image is formed by a plurality of dots composed with ink droplets ejected from a plurality of different orifices (No. 1 to M) at individual different main-scannings (No. 1, 2, 3 and so on). With this recording process, the variation of ink ejection characteristics between a plurality of orifices in a recording head can be reduced in forming pixels. ...

IMAGING METHOD FOR PRINTING FORM

PROBLEM TO BE SOLVED: To perform rapid imaging of a printing form. SOLUTION: The laser diodes 12 of a laser diode bar 10 are divided into a main field 14 of m laser diodes 12 and into an auxiliary field 16 of (n-m) laser diodes 12 in such a way that an imaging channel 44 in the auxiliary field 16 with a matching feed that can be activated is assigned to each imaging channel in the main field 14 that cannot be activated. In order to create a row 40 of m printing dots 38 on a setting line 34 at even distances (a) by means of the imaging channels 44, the printing dots 38 are set by the main field at a first time, and by the auxiliary field at least at a second time. The imaging channels 44 are shifted relative to the printing form 32 parallel to the setting line 36 between the imaging times. COPYRIGHT: (C)2004,JPO ...

SERIAL PRINTER HAVING AN ARCUATE PLATEN

INK JET PRINTER AND MANUFACTURE THEREOF

PROBLEM TO BE SOLVED: To obtain an improved high speed, high quality printer by fixing a printer cartridge to a printer at a specified angle with respect to an axis orthogonal to an axis extending along the direction of a print medium passage. SOLUTION: A printer cartridge is fixed to a printer at an angle of 0-90° with respect to an axis orthogonal to an axis extending along the direction of a print medium passage. The cartridge 11 is divided into three sections 24, 28 and 30. When a print medium 16 passes through the cartridge 11, a part 26 of the medium 16 is located closely to the section 24 of the cartridge 11. An ink jet device on a print head is actuated at the section 24 of the cartridge 11. When the print medium 16 moves close to the sections 28, 30, corresponding ink jet devices are actuated continuously to print the parts 32, 34 of the print medium 16. COPYRIGHT: (C)2000,JPO ...

Tone recording method using ink jet recording head

Tone recording method using ink jet recording head

IMAGING METHOD FOR PRINTING FORMS

An imaging method for a printing form (32) is described, with one or more laser diode bars (10) with n individually controllable laser diodes (12) each of which are assigned to one imaging channel, in which the laser diodes (12) of a laser diode bar (10) are divided into a main field (14) of m and into an auxiliary field (16) of (n-m) laser diodes (12) in such a way that an imaging channel (44) in the auxiliary field (16) with a matching feed that can be activated is assigned to each imaging channel (44) in the main field (14) that cannot be activated. In order to create a row (40) of m printing dots (38) on a setting line (36) at even distances a by means of the imaging channels (44), printing dots (38) are set by the main field (14) at a first time, and by the auxiliary field (16) at least at a second time. The imaging channels (44) are shifted relative to the printing form (32) parallel to the setting line (36) between the imaging times. Also, a method for the determination of the largest ...

Serial copier, scanner, and printer employing continuous media transport

A copier, scanner, or printer has serial scanning and/or printing heads. A uniform relative motion is maintained in a longitudinal direction between the head(s) and the scanning and/or printing media. The head(s) move cyclically back and forth at an acute angle to the longitudinal direction, so that each scanning element and/or each printing element scans or prints a pixel line perpendicular to the longitudinal direction. The acute angle and the rate of relative uniform motion are preferably adjustable according to the width of the area to be scanned or printed. For color copying, scanning, or printing, the scanning and/or printing elements are grouped according to color, and are aligned so that the same pixel lines are scanned or printed in different colors.

HIGH RESOLUTION MULTICOLOR INK JET PRINTER

A high resolution ink jet printer includes a rotating drum (14) and a pair of ink jet heads (20, 22) scanned along a substrate (24) carried by the drum (14) in a direction parallel to the axis of the drum. The heads (20, 22) are driven by a lead screw (36) coupled to the drum drive shaft (26) and a control unit (44) controls the rate of drop ejection from the printheads (20, 22) at a rate corresponding to the rate of encoder signals received from an encoder (42) coupled to the drum drive shaft (26). One printhead (20) receives and ejects drops of black, magenta, cyan and yellow high-density inks and the other printhead (22) ejects drops of black, magenta and cyan low-density inks along with another ink which may be a different color or black ink of a different density. High resolution and high print quality are assured by accurate control of the distance between the drum support shaft (26) and the drum surface and also between the drum support shaft (26) and a carriage support rail (88) ...

ARCUATE PRINTER

Large format ink-jet color printer

The present invention pertains to the field of ink-jet printers used for color printing of large format articles. This invention is used for improving quality and for increasing the yield of printers and comprises successively applying primary colors, suppressing color aberrations when printing a semi-transparent material on both sides, precisely positioning the head when printing an image on the substrate and eliminating the lines connecting the carriage to the systems supplying control signals, air and inks. To this end, the carriage with the jet heads is moved in one direction along a closed guiding rail which is fitted with a hatched ruler for precise positioning, wherein the heads will thus bypass the substrate on both sides while information is transmitted from the device control unit to the carriage using a radio transceiver. The printer can further be (equipped With two independent and parallel substrate feeding systems for performing a one-sided printing on two substrates at the ...

Multi-beam drawing method using partially damaged light emitting devices and including spiral correction

In a multi-beam drawing method in which drawing is performed with a plurality of light-emitting devices (LDs), it is detected whether any LD is damaged. Of a plurality of partial LD lines obtained by partitioning at a damaged LD or LDs, the partial LD line including the largest number of LDs is selected as an effective LD line for use in drawing. Spiral correction is performed by dividing image data to be supplied to the LDs into a plurality of virtual small images parallel to the sub-scanning direction which are shifted in a reverse direction to the sub-scanning direction.

Angled printer cartridge

DEVICE FOR PRECISE POSITIONING TO A DIVISION NEAR A CARRIAGE OF A PRINTER TELESCRIPTEURS OR THE LIKE

Verfahren zur Korrektur der Schrägaufzeichnung bei der Belichtung von Druckvorlagen

TELEPRINTERS

SYSTEM AND METHOD FOR DIGITAL CREATION OF A PRINT MASTER USING A MULTIPLE PRINTHEAD UNIT

A relief print master is created by means of a printhead that jets droplets of a polymerisable liquid on a cylindrical sleeve. The droplets follow a spiral path (950, 951) on the cylindrical sleeve. In a multiple printhead unit, there are different spiral paths associated with the constituting printheads in the multiple printhead unit. The distance between the spiral paths is not even. The invention provides a method and a system so that the distance between these spiral paths becomes even by adjusting the distance (920,921) measured in the direction of the cylindrical support between marking elements of different rows of the multiple print head unit. The system can also be used for the creation of other types of print masters, such as offset print plates.

Printing method by a writing mechanism having either one print head with multiple arrays of side by side writing elements or a plurality of side by side print heads

A printing method by a writing mechanism having either one print head with multiple arrays of side by side writing elements or a plurality of side by side print heads is applied to a writing mechanism comprising a rotating drum (3) supporting a photosensitive plate, at least two engraving laser heads (1,2) movable parallel to the axis of rotation (x) of the rotating drum (3), an array of laser diodes (5) on each laser head (1,2) and displacing means for the laser heads (1,2) in order to move them by a distance equal to the product of the number of laser diodes and the writing resolution. The laser heads (1,2) are side by side. The distances between the laser diodes (5) and a first laser diode (5) are not congruent modulo n. Spots that are generated by laser diodes (5) column by column, one per each laser diode, interlace to form a complete image.

Halbtonaufzeichnungsverfahren unter Verwendung eines Farbstrahlkopfes

MEDIA MARKING APPARATUS

... 1451565 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 28 May 1974 [25 June 1973] 23667/74 Heading B6F A printer includes a movable print head 10 defining an arcuate path and one or more arcuate platens A, B, C concentric with said path. The head may be a wire matrix or electro discharge or thermographic. The head 10 and its counterweight 8 are fixed to shaft 1 which is driven in direction 17 when connected to motor 4 by clutch and returned by spring 23 when clutch 5 is disengaged. A dashpot 24 absorbs the energy of the return movement. The motor is controlled by marked and indented interposer 19 moved between light sources and photo-cells (not shown).

Environmental and operational color calibration, with integrated ink limiting, in incremental printing

An image processing apparatus (10), typically for sheet thermal print media. The image processing apparatus (10) typically comprises a vacuum imaging drum (300) for holding thermal print media (32) and dye donor sheet material (36) in registration on the vacuum imaging drum (300). A printhead (500), driven by a lead screw (250), moves along a line parallel to a longitudinal axis (301) of the vacuum imaging drum (300) as the vacuum imaging drum (300) rotates. The printhead (500) receives information signals and produces radiation which is directed to the dye donor material (36) which causes color to transfer from the dye donor material (36) to the thermal print media (32). A stepper motor (162) that turns the lead screw (250) can run in a microstepping mode. To determine an optimal lead screw (250) pitch, a method of this invention utilizes the characteristic sinusoidal positional error (154) behavior of the stepper motor (162) that is at 4 times the frequency of the composite microstepping ...

DRUCKGERÄT UND VERFAHREN

Printing form imaging method, involves dividing n number of laser diodes into m number of laser diodes and into auxiliary field with q number of laser diodes, and imaging form with specific number of laser diodes from main field

The method involves dividing n number of laser diodes (12) into a main field (14) with m number of laser diodes and into an auxiliary field (16) with q number of laser diodes. A printing form (32) is imaged with a number (m-r) of the laser diodes from the main field at a time tm. The printing form is then imaged with r number of the laser diodes from the auxiliary field at a different time ta.

Tone recording method using ink jet recording head

PRINT CARRIAGE

PRINT CARRIAGE

A system and method for depositing a substance onto a continuously moving substrate in first and second transverse swathes, is achieved by providing a print carriage having a first set of inkjet heads and a second set of inkjet heads. The carriage is traversed across the substrate in a forward pass, while depositing the first and second swathes from the respective first and second plurality of inkjet heads and subsequently traversed across the substrate in a reverse pass. The first and second sets of inkjet heads are arranged such that the first and second swathes complement one another on both forward and reverse passes to provide substantially complete coverage of the substrate. In this manner complementary swathes may be deposited from a single head.

Method and system for labeling a storage media

A system for labeling a storage media (131) is disclosed. The system includes means for arranging images, wherein the images correspond to images encoded on the storage media (131). The system also includes a means for printing the images coupled to the means for arranging the images. Printing may be performed by one of a printer (140) and a laser (135).

INK JET RECORDING DEVICE

PURPOSE: To reduce a required driving force by performing the operation of the nozzle head moving type device in the title in the directions of X and Y by pulleys and cable operated by one driving source and decelerating the speed in the direction of Y with respect to the speed in the direction X, based on the principle of a pulley sytem. CONSTITUTION: The nozzle head moving type ink jet reocording device is provided with a laterally traveling unit 4 and the nozzle head 1 which are moved in the direction X and a lifting unit 2 which is moved in the direction Y. In this device, the movement of the nozzle head 1 in the direction X and the direction Y is performed by the pulleys and the cable 12 which are operated by a motor 7. The pulleys between the laterally traveling unit 4 and the lifting unit 2 are constituted as a pulley block system. The cable 12 is arranged so as to correspond to said system. The number of the movable pulleys 13 and 14, the number of the fixed pulleys 15 and 16, and ...

TONE RECORDING METHOD USING INK JET RECORDING HEAD

Print carriage

A system and method for depositing a substance onto a continuously moving substrate in first and second transverse swathes, is achieved by providing a print carriage having a first set of inkjet heads and a second set of inkjet heads. The carriage is traversed across the substrate in a forward pass, while depositing the first and second swathes from the respective first and second plurality of inkjet heads and subsequently traversed across the substrate in a reverse pass. The first and second sets of inkjet heads are arranged such that the first and second swathes complement one another on both forward and reverse passes to provide substantially complete coverage of the substrate. In this manner complementary swathes may be deposited from a single head.

High throughput inkjet printing system

A high throughput inkjet printing apparatus and method involve printing with a fluid from at least one individual printhead onto a sheet of receiver medium held on a printing media carrier. The fluid is de-gassed using an in-line de-gassing process. The printing method involves generating relative motion between the printing media carrier and the at least one individual printhead while simultaneously performing more than one of the actions of: (i) loading a second sheet of receiver medium onto the printing media carrier; (ii) unloading a third sheet of receiver medium from said the printing media carrier; and (iii) ejecting droplets of fluid from the at least one individual printhead onto a sheet of receiver medium previously loaded onto the printing media carrier.

PRINTING DEVICE, RECORDING MEDIUM DRIVER, AND PRINTING METHOD

PROBLEM TO BE SOLVED: To provide a printing device capable of speeding up printing speed and miniaturizing a printing head, a printing medium driver, and a printing method. SOLUTION: A printing unit has the printing head 55 capable of being arranged so as to face the face to be printed of a disc and a printing head rotating mechanism 40 having holder 43 for holding the printing head 55 and rotating the printing head 55 by a predetermined angle. A driving pulley 45 is arranged around the output shaft 44a of a rotary motor 44, a driven pulley 57 is connected to the driving pulley 45 via a timing belt 53. By this constitution, the width of a printed image can be suitably controlled according to the position on the disc for example. COPYRIGHT: (C)2008,JPO&INPIT ...

Verfahren und Vorrichtung zur Druckgeschwindigkeitserhöhung eines Druckers

Ein Verfahren und eine Vorrichtung zur Erhöhung der Druck-Geschwindigkeit eines Druckers (20). Das Verfahren beinhaltet, einen Druckkopf (28) zu einem ersten Bahn-Bereich eines Mediums (34), entsprechend einer ersten Richtung, zu bewegen, den Druckkopf (28) entsprechend Druck-Daten zu steuern/regeln, um die Druck-Daten auf dem ersten Bahn-Bereich zu drucken und den Druckkopf (28) zu einem zweiten Bahn-Bereich neben dem ersten Bahn-Bereich, entsprechend einer zweiten Richtung, entgegengesetzt zur ersten Richtung, zu bewegen, sobald der Druckkopf (28) den ersten Bahn-Bereich verlassen hat und das Medium (34) sich noch entlang einer vorgegebenen Richtung bewegt, um zu ermöglichen, dass der zweite Bahn-Bereich vom Druckkopf (28) gedruckt werden kann.

GRAPHIC METHOD OF AUTOMATICAL MEMORY TYPEWRITER

The method comprises the steps of: processing a carriage and line feed space regulating keys; processing functions of the carriage and line feed space regulating keys; and performing a graphic function by having a microcomputer for controlling a carriage driving part, a line feed driving part, a recognition driving part, and a ribbon driving part. Copyright 1997 KIPO ...

Recording apparatus and recording method

INK JET RECORDING METHOD

PURPOSE: To upgrade the quality and durability of printed images by improving the clogging of ink and responsiveness and intensifying the density and coloring of images through such an arrangement wherein at first an image is drawn by recording ink at its position of recording and then the image is again drawn by treated ink, by being overlapped. CONSTITUTION: A strip of recording paper is wrapped around a recording drum 1 and recording is made by causing nozzle heads 2, 3 to move laterally. At this time, the spouting of nozzle heads 2, 3 is controlled by an image signal control circuit 6 to obtain a desired image and these signals are conveyed to the treated ink nozzle head 3 through a delay circuit 7. In other words, the delay circuit 7 causes image signals to delay by such a period of time during which the nozzle head 3 is able to move by the distance between the two heads, and by this, treated ink is caused to accurately overlap on the recording ink previously drawn. COPYRIGHT: (C)1983 ...

Method of controlling a printhead movement based on a screw pitch to minimize swath-to-swath error in an image processing apparatus

An image processing apparatus (10), typically for sheet thermal print media. The image processing apparatus (10) typically comprises a vacuum imaging drum (300) for holding thermal print media (32) and dye donor sheet material (36) in registration on the vacuum imaging drum (300). A printhead (500), driven by a lead screw (250), moves along a line parallel to a longitudinal axis (301) of the vacuum imaging drum (300) as the vacuum imaging drum (300) rotates. The printhead (500) receives information signals and produces radiation which is directed to the dye donor material (36) which causes color to transfer from the dye donor material (36) to the thermal print media (32). A stepper motor (162) that turns the lead screw (250) can run in a microstepping mode. To determine an optimal lead screw (250) pitch, a method of this invention utilizes the characteristic sinusoidal positional error (154) behavior of the stepper motor (162) that is at 4 times the frequency of the composite microstepping ...

Pattern drawing device and manufacturing method of pattern drawing body

The present invention provides a pattern drawing device that enables drawing with reduced operational processing loading of the associated CPU. Thus, in a pattern drawing device for forming a plurality of tracks disposed concentrically on a substrate to produce a two-dimensional pattern, a basic pixel sequence is prepared and used repeatedly in forward (positive) and/or reverse (negative) order to produce symmetric portions of the two-dimensional pattern.

High Resolution Multicolor Ink Jet Printer

A high-resolution ink jet printer includes a drum supported for rotation about an axis, substrate positioning means for positioning a substrate sheet on the surface of the drum to receive a printed image, carriage means movable parallel to the drum axis, printhead means supported on the carriage means and having at least one array of orifices disposed in spaced relation to the surface of the drum for projecting ink drops onto a substrate sheet carried by the drum, drive means for driving the carriage parallel to the axis of the drum, encoder means providing a train of signals at a rate dependent upon the rate of rotation of the drum, and control means for controlling the projection of the ink drops from the printhead means at a rate that depends on the rate of signals received by the control means.

Mehrkanal-Druckkopf, Gerät und Methode zur Bildaufzeichnung

KOPPLINGSANORDNING VID FJERRSKRIFT- OCH DATASKRIVMASKINER

INK JET RECORDING DEVICE, AND RECORDING HEAD

An ink jet recording device comprising a color ink recording head (6) having nozzle openings Nc arranged at a paper-feed-direction pitch Pc of N x P (N; integer of at least 4 except for prime number, P; pitch of dots required by printing), and a black ink recording head (5) having m pieces of (m; divisor of at least 2 of N) nozzle openings Nb1 arranged at a paper-feed-direction pitch Pb1 of P and having nozzle openings Nb2 arranged at a paper-feed-direction pitch Pb2 of {N (m-1)}P, wherein paper is fed on an mP basis, and image data is printed by the color ink recording head (6) and text data by the black ink recording head (5) concurrently, whereby it is possible to print text data and image data present on the same pass at respective optimum resolutions.

PRINTING APPARATUS

A printing apparatus includes a transfer drum configured to support a transfer member on an outer peripheral surface, a printing unit configured to form an ink image on the transfer member by discharging ink to the transfer member, a pressurizing drum arranged facing the transfer drum and configured to transfer the ink image on the transfer member to a print medium, an axial distance adjusting unit configured to displace a rotation-center axis of the transfer drum with respect to a rotation-center axis of the pressurizing drum, and a supporting unit displaced together with the rotation-center axis of the transfer drum and configured to support the printing unit.

Tonal product recorded by ink and having a plurality of pixels with plural tonal levels

A liquid ink jet recording apparatus and method which forms a multi-level tonal image by liquid droplets discharged through plural nozzles. A first scan of a recording head past a recording material ejects ink droplets from a first nozzle in accordance with a tone signal. A sub-scan operation is performed and a second scan of the recording head ejects ink droplets from a second nozzle in accordance with a tone signal. The ink droplets ejected from the first and second nozzles have actual size/volumes different than their nominal size/volumes. Plural tonal levels are formed by super-imposing ink droplets of the same color and a same nominal volume but different actual volumes by at least the first and second nozzles thus minimizing variations between pixels having the same tonal level.

Ink jet printing

Biased serial ink jet printing system for textiles

Hochauflösender Mehrfarbentintenstrahldrucker

Rotary recording method

The invention relates to a method for recording information onto a recording carrier which is attached to the outer circumference of a drum-like holder which rotates uniformly. In order to record a two-dimensional information field on the recording carrier, in each case one line or column is successively recorded with at least approximately constant axial position along the circumference of the drum-like holder during in each case only one rotation period. ...

Aufzeichnungsgerät und Aufzeichnungsverfahren

Pattern drawing device and manufacturing method of pattern drawing body

The present invention aims to provide a pattern drawing device which will enable drawing with minimal operational processing load of the CPU. Thus, in a pattern drawing device for forming a plurality of tracks disposed concentrically on a substrate and drawing a two-dimensional pattern thereby, a necessary pattern is formed by repeatedly arranging in positive or reverse a basic pixel sequence (locus 1, locus 2) to be the basis for each track at least in two places on one track and performing this to a plurality of consecutive tracks.

Aufzeichnungsgerät und Aufzeichnungsverfahren

DRUCKER

Drucksystem

Method and device for boosting printing speed of a printer

A method and a device for boosting printing speed of a printer. The method includes (a) moving a print head across a medium according to a first direction and controlling the print head for printing a first print data on a first swath, and (b) after the print head finishes printing the first print data on the first swath, moving the medium according to a predetermined direction and moving the print head toward a second swath according to a second direction opposite to the first direction.

Method and device for boosting printing speed of a printer

A method and a device for boosting printing speed of a printer. The method includes (a) moving a print head across a medium according to a first direction and controlling the print head for printing a first print data on a first swath, and (b) after the print head finishes printing the first print data on the first swath, moving the medium according to a predetermined direction and moving the print head toward a second swath according to a second direction opposite to the first direction.

Verfahren zum Bedrucken plattenförmiger Informationsträger.

PRINT CARRIAGE

Drucksystem zum Drucken in Bewegungs- und Druckmedienzuführrichtungen und Verfahren zum Durchführen einer Druckoperation

Ein Drucksystem zum Aufbringen von Tinte auf Druckmedien. Das Drucksystem umfaßt ein erstes und ein zweites Druckkopfarray. Das erste Druckkopfarray bringt Tinte auf das Druckmedium in einer Bewegungsrichtung auf. Das zweite Druckkopfarray bringt Tinte in einer Druckmedienzuführrichtung auf das Druckmedium auf.

Inkjet printing apparatus and method for controlling drive of nozzles in inkjet printing apparatus

An inkjet printing apparatus that prints each raster in a multi-pass printing mode by causing a printhead having a plurality of nozzles forming a nozzle array to scan in a direction intersecting with the nozzle array is provided, in which the nozzles are divided into groups, each including adjacent nozzles, one nozzle selected from each group is united into one block, drive of nozzles is controlled such that drive timings of nozzles differ among a plurality of blocks in each group, and a sequence in which nozzles are driven is determined for each scan in the multi-pass printing mode such that printed dots are most equally printed in the raster.

Inkjet printing system and inkjet printing method

There is provided an inkjet printing apparatus which can restrict each of coloring of reflected light and image clarity within an allowable range required in each of a color mode and a monochromatic mode in any of the modes to output an image with a high grade. For this end, a print duty of each of the first image improving liquid and the second image improving liquid is set in such a manner that a ratio of the print duty of the first image improving liquid having low penetratability to the print duty of the second image improving liquid having high penetratability is higher in the monochromatic mode than that in the color mode. Thereby, an appropriate ratio and an appropriate amount of appropriate kinds of the image improving liquids are applied to each of the color mode and the monochromatic mode.

Printing apparatus

For a serial color ink jet printing apparatus that forms an image using a symmetric printing head that ejects large dots and small dots, the configuration of a printing head is provided for suppressing, to the extent possible, a cyclic fluctuation in the main scanning direction. According to the present invention, individual nozzle arrays are arranged so that two nozzle arrays, i.e., a cyan nozzle array c 1 and a magenta nozzle array m 1 , that are located nearer each other, form dots on adjacent scan lines. With this arrangement, a high quality image, having neither an uneven density nor an uneven color, can be formed when a printing head is inclined, or when a cyclic shift in printing positions occurs, depending on the position of the main scanning direction.

Printing device and printing method

To suppress nozzle clogging without reducing printing speed, a printing device of the invention includes a plurality of nozzles for discharging ink while moving in a movement direction; a conveying unit for conveying a medium in a conveying direction; and a controller for repeating a dot-forming action for discharging ink from the nozzles moving in the movement direction and forming dots on the medium, and a conveying action for conveying the medium in the conveying direction. The controller places an additional image in a different position in the movement direction from an area where a main image to be printed is formed, discharges ink from all of the nozzles in each of the dot-forming actions, and prints the additional image on the medium.

Printing apparatus and printing method

A printing apparatus is provided in which a position of a joint of a first yellow nozzle group and a second yellow nozzle group in a predetermined direction is offset from a position of a joint of a first magenta nozzle group and a second magenta nozzle group in a predetermined position and a position of a joint of a first cyan nozzle group and a second cyan nozzle group in the predetermined position, and the position of the joint of the first magenta nozzle group and the second magenta nozzle group in the predetermined position is the same as the position of the joint of the first cyan nozzle group and the second cyan nozzle group in the predetermined direction.

Image processing device, printing device, image processing method, and image processing program

Provided is an image processing device for comparing a determination value adjusted by comparing the gradation values of pixels included in inputted image data and threshold values of a dither mask prepared in advance, and a corrected gradation value obtained by correcting the gradation value of the pixel by the diffusion error from an adjacent processed pixel; and adjusting a determination value; generating dot data which indicate the presence or absence of the dot formation by applying error diffusion; and reducing the width of the adjustment of the determination value used in determining the dot formation so that the width of the adjustment is smaller in comparison with non-edge pixels in the case that a pixel is determined to be an edge pixel for which the difference in gradation value in relation to an adjacent pixel is equal to or greater than a predetermined value.

Image forming apparatus and method, and image processing apparatus and method

A generation unit is configured to generate a black color material data and the plurality of pieces of chromatic color material data, for a color positioned at a surface of a dark portion in a color gamut that can be reproduced using a black color material and the plurality of chromatic color materials, in such a way as to arrange dots of the black color material and respective dots of the plurality of chromatic color materials exclusively on a recording medium and set a rate of the arranged dots of the black color material to be greater as the color positioned at the surface is closer to black.

Printing Apparatus and Printing Method

A printing apparatus that generates printed matter composed of a plurality of printing layers, wherein the apparatus includes an ink amount selection unit that selects an ink amount that corresponds to each of printing layers using a profile that regulates the correspondence relationship between the component values of input color data and the ink amount in each of the printing layers; and a print execution unit that generates the printed matter by adding layers of printing layers to a medium based on the selected ink amount, wherein in the profile, the ink amount of each printing layer is regulated so that the number of dots that are formed by a first ink and the number of dots that are formed by a second ink with a lower concentration than the concentration of the first ink change according to the printing order of each printing layer.

Print method, print device, and program

A print device for moving a print head in a scanning direction and printing image data onto a print medium includes a color nozzle row, which is a nozzle row in which nozzles for ejecting P (where P is an integer 2 or higher) types of color ink are arranged side by side in a direction intersecting with the scanning direction, wherein the color nozzle row is constituted of P color nozzle groups, and a black nozzle row, which is a nozzle row in which nozzles for ejecting black ink are arranged side by side in parallel with the direction intersecting with the scanning direction and in parallel with the color nozzle row, wherein the black nozzle row is constituted of P black nozzle groups.

DEVICE AND METHOD FOR PRINTING SURFACES OF MATERIAL PANELS, ESPECIALLY WOOD PANELS, WITH A MULTI-COLOUR IMAGE

A printing device and a method for printing surfaces of material panels, especially wood panels, with a multi-color image. The method includes orienting the material panel so the surface thereof is in a defined position and at a defined height; holding the material panel in place; moving a printing unit along a path of displacement over the surface of the material panel held in place; printing the surface of the material panel held in place, by means of a printing unit, the printing unit including a plurality of adjacently arranged printing heads, respectively for a plurality of colors, according to the width of the surface to be printed; moving the printing unit into a position for a control printing; preparing a control printing strip or a control model strip in said position; and carrying out printing with a test model on said control printing strip or on a control model strip. 1. A printing device for printing on surfaces of material panels , in particular wood panels , with a multi-color image , comprising:{'b': 30', '110', '30', '110', '12', '112, 'Means for holding a material plate () in an aligned position; a printing unit () for printing on a surface of the material panel (), whereby the printing unit () has a plurality of adjacent print heads (, ) for a plurality of colors in each case corresponding to the width of the surface to be printed;'}{'b': 110', '30', '100', '110, 'Means for moving the printing unit () over a travel path over the surface of the material panel () whereby the printing device () further comprises a means for monitoring print quality that is arranged along the travel path of the printing unit ().'}2145146110. A printing device according to claim 1 , characterized in that the said means for monitoring print quality has means for supplying a control printing strip () or a control pattern strip () to a position at which it can be printed with a test pattern by the printing unit ().3. A printing device according to one of the preceding ...

BACKLIT PRINTING

A method and apparatus for printing digital ink jet images to be backlit by a light source is provided. Such backlit printing relies upon additional color pigment to be hidden in the white layer to add additional color density to the image as the back light source passes light through the layers. Print heads are divided into a region of multiple single color print head arrays and a region of white and color print region printed over a color print region. Such backlit printing may be used on both first surface printing and second surface printing. When such backlit printing is used, it may not be necessary to divide the print heads exactly in half as one layer may require less print nozzles than the other as the interlacing and or DPIs may vary for the different layers. 1. A multi-pass printing method comprising:printing a first multi-color image including a combination of colors on a substantially translucent or transparent substrate using a first group of ink jets within a print head array on a print carriage during a first pass of the carriage, wherein the first group of ink jets contains all the colors necessary to print the first multi-color image, wherein the substantially translucent or transparent substrate has a first side and a second side, and wherein the first multi-color image is printed on the second side; andprinting a second layer of ink consisting of white ink combined with process inks forming a multi-color image by printing an at least partially opaque coating layer over the first multi-color image using a second group of ink jets during a subsequent pass of the carriage, wherein the first group of ink jets and the second group of ink jets are configured in a same printer head carriage, and wherein the at least partially opaque coating layer contains both white ink and colored inks mixed in with the white ink to facilitate quality viewing of the first multi-color image from the first side of the substantially translucent or transparent substrate ...

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

An image processing apparatus for generating dot data to form an image by forming dots on a recording medium includes a receiving unit, a first, second, and third generating unit, and a correcting unit. The receiving unit receives first and second image data included in image data. The first generating unit generates, per the first image data, first ink color data representing a multi-valued signal value corresponding to an ink color. The second generating unit generates, per the second image data, second ink color data representing a multi-valued signal value corresponding to an ink color. The correcting unit corrects the signal value represented by the generated first and second ink color data. The third generating unit generates, per the first and second ink color data of which the signal values have been corrected, the dot data representing existence of formation of dots to form an image. 1. An image processing apparatus for generating dot data to form an image by forming dots on a recording medium , the image processing apparatus comprising:a receiving unit configured to receive first image data representing a tone value of a tone of the image of an image attribute and second image data representing a tone of the image of a character attribute by binary tone values, wherein the first image data and the second image data are included in data of the image;a first generating unit configured to generate, in accordance with the first image data received by the receiving unit, first ink color data representing a multi-valued signal value corresponding to a color of ink to be used to form an image corresponding to the first image data on the recording medium;a second generating unit configured to generate, in accordance with the second image data received by the receiving unit, second ink color data representing a multi-valued signal value corresponding to a color of ink to be used to form an image corresponding to the second image data on the recording medium;a ...

PRINTING CONTROL DEVICE AND PRINTING IMAGE CONTROL METHOD

Provided is a printer for forming an image layer in which the effect of a background image is reduced when a color image layer representing an image and a background image layer superimposed onto the color image layer are printed on a printing medium. The printer includes a control circuit which performs control to cause ink to be discharged from at least one of a first nozzle group and a second nozzle group, on the basis of both first ink level data indicating ink quantity created by color-converting first image data for forming a color image layer representing an image, and second ink level data indicating ink quantity created by color-converting second image data that forms a background image layer superimposed onto the color image layer and has a data format that is different from the data format of the first image data. 1. A printer for printing on a printing medium by moving a printing head , which discharges ink from a nozzle , and the printing medium in a relative manner in a main scanning direction and a sub-scanning direction which intersects the main scanning direction , the printer comprising:a first nozzle group;a second nozzle group which is located at the downstream side of the first nozzle group in the sub-scanning direction; anda control circuit for performing control to cause the ink to be discharged from the first nozzle group and the second nozzle group,the control circuit performing control to cause ink to be discharged from at least one of the first nozzle group and the second nozzle group, on the basis of both first ink level data which indicates ink quantity created by color-converting first image data for forming a color image layer representing an image, and second ink level data which indicates ink quantity created by color-converting second image data that forms a background image layer superimposed onto the color image layer and has a data format that is different from the data format of the first image data.2. The printer according to ...

PRINT CONTROL DEVICE AND PROGRAM

A plurality of test patterns that are disposed in a predetermined direction are printed using dot arrays formed along an intersecting direction interesting with the predetermined direction using nozzles included in an overlapping portion of a first nozzle array and a second nozzle array, a plurality of rules lined in the predetermined direction are printed so as to be adjacent to the test patterns using nozzles included in the first nozzle array and the second nozzle array, density correction values are computed according to density of each of raster lines of the test patterns, and the positions of nozzles specified from the positions of rules are associated with the positions of the raster lines for which density correction values are computed. 1. A print control device that controls a printing apparatus including a first nozzle array in which a plurality of nozzles that discharge an ink are lined in a predetermined direction , and a second nozzle array in which a plurality of nozzles that discharge the ink are lined in the predetermined direction and some of the nozzles are disposed in positions overlapping those of some nozzles of the first nozzle array in the predetermined direction ,wherein a plurality of test patterns disposed in the predetermined direction are printed by dot arrays formed along an intersecting direction intersecting with the predetermined direction by using nozzles included in an overlapping portion of the first nozzle array and the second nozzle array, a plurality of rules disposed in the predetermined direction are printed so as to be adjacent to the test patterns by using nozzles included in the first nozzle array and the second nozzle array, density correction values of each of raster lines are computed according to density of each of the raster lines lined in the predetermined direction detected from image data of which the test patterns are read, and the positions of respective nozzles included in the first nozzle array specified from ...

Printing apparatus

Provided is a printing apparatus for printing an image on a medium, which is transported in a transport direction, by forming dots by ejecting ink from a plurality of nozzles while moving the nozzles in an intersecting direction that intersects the transport direction. The printing apparatus has a first printing mode for printing a mirror image of a predetermined image as the image on the medium and a second printing mode for printing a positive image of a predetermined image as the image on the medium, the medium being a transparent medium. The first printing mode is different from the second printing mode in at least one of a transportation operation of transporting the medium and a dot-forming operation of forming the dots by ejecting ink while moving the nozzles.

METHOD FOR PRINTING MARKING MATERIAL ON A RECEIVING MEDIUM BY A PRINTING SYSTEM

A method obtains color consistency over at least one printing system in order to print a digital image containing pixels and color information of the primary colors per pixel. Each printing system includes at least one engine including a plurality of containers, each of the containers containing a marking material having a primary color. The method includes the steps of, for each primary color, determining a target color which is printable by each engine on the receiving medium, determining for each container how much marking material must be ejected to establish the target color, and for each pixel of the digital image to be printed by an engine, replacing each primary color of the pixel by a corresponding target color, and printing the pixel by ejecting marking material from the containers of the engine according to the determined marking material per target color per container of the engine. 1. A method for obtaining color consistency over at least one printing system in order to print a digital image containing pixels and color information of the primary colors per pixel , each printing system comprising at least one engine , the engine comprising a plurality of containers , each of the plurality of containers containing a marking material having a primary color , said method comprising the steps of , for each primary color:determining a target color that is printable by each of the at least one engine on a receiving medium;determining, for each of the plurality of containers, how much marking material must be ejected to establish a target color; and replacing each primary color of the pixel by a corresponding target color; and', 'printing the pixel by ejecting marking material from the plurality of containers of the engine according to the determined marking material per target color per container of the engine., 'for each pixel of the digital image to be printed by an engine2. The method according to claim 1 , wherein each target color is determined by taking ...

Image forming apparatus and image forming method

An image forming apparatus configured to form a plurality of dots on a recording medium by ejecting ink droplets includes: a recording head configured to eject the ink droplets of a plurality of colors including similar colors, which are colors of which densities or hues are equal to each other; a transporting unit configured to relatively move the recording head and the recording medium; a head driving circuit configured to perform a driving control of the recording head based on a control signal; and an image processing unit configured to convert an input image signal into a control signal to be supplied to the head driving circuit in a manner so that the dots of the similar colors are formed to be overlapped at a same position at a lower rate in a low density gradation range and at a higher rate in a high density gradation range.

Recording apparatus and recording method

A recording apparatus includes: a recording head that discharges a recording ink and an undercoating ink on a recording medium; a driving section that drives at least one of the recording medium and the recording head so that the recording medium and the recording head are relatively scanned several times in one direction; and a control section that causes an undercoating layer with the undercoating ink on a predetermined area of the recording medium and a recording layer with the recording ink to be laminated by the recording head and the driving section, and simultaneously allows that the number of the scannings in a case where the undercoating ink is discharged with respect to the predetermined area is larger than the number of the scannings in a case where the recording ink is discharged with respect to the predetermined area.

Printing System, Printing Device, and Printing Method

A first printer has a connection unit that receives print data input from a POS terminal , and outputs the print data to and receives the result of printing the output print data from a second printer , and a first printer print unit that prints the received print data or data based on the received print data. When the result of printing the print data input to the connection unit is an error, the first printer uses the first printer print unit to print the print data, and outputs the result of printing by the first printer print unit from the connection unit. 1. A printing system comprising:a host device configured to output print data;a first printing device including a connection unit configured to receive the print data output by the host device and to output the print data, and a first print unit configured to print; anda second printing device including an input unit to which the print data output by the connection unit of the first printing device is input, a second print unit configured to print the print data input to the input unit, a print control unit configured to detect an error when the error occurs in the second print unit, and an output unit configured to output the error detected by the print control unit to the connection unit of the first printing device;wherein the first printing device prints the print data with the first print unit, and reports the printing result by the first print unit as the printing result of the second printing device to the host device, when the error output by the output unit of the second printing device is input to the connection unit of the first printing device.2. The printing system described in claim 1 , whereinwhen the printing result of the first print unit is successful, the first printing device sends information to the host device indicating that the printing result of the second printing device is successful.3. The printing system described in claim 1 , whereinwhen the printing result of the first print unit ...

Color Correction in Printing Systems

A method is described in which a first color is detected at a user-selected arbitrary position of a first print; a second color is detected at a user-selected arbitrary position of a second print printed by a printer; a color difference between the first color and the second color is determined; and settings of the printer are changed to reduce the color difference in further prints printed by the printer. 1. Method comprising:{'b': 102', '206', '26', '26', '22', '22', '22', '12, 'i': a,', 'b', 'a,', 'b, 'detecting (; ) a first color () at a user-selected arbitrary position (; ) of a first print ();'}{'b': 104', '208', '26', '26', '18', '18', '18', '16', '50, 'i': a', 'b', 'a,', 'b, 'defecting; (; ) a second color (′, ′) at a user-selected arbitrary position (; ) of a second print () printed by a printer ();'}{'b': 106', '212', '28', '28', '26', '26', '28', '26, 'i': a', 'b', 'a', 'b', 'a', 'b, 'determining (; ) a color difference (, ) between the first color (, ) and the second color (′, ′); and'}{'b': 108', '214', '50', '28', '28', '16', '50, 'i': a', 'b, 'changing (; ) a setting of the printer () to reduce the color difference (, ) in further prints (′) printed by the printer ().'}2222222121818181624242424aba,ba,b,ab. Method according to claim 1 , wherein the user-selected arbitrary position (; claim 1 , ) of the first print () and the user-selected arbitrary position (; ) of the second print () are regions (′ claim 1 , ′) intended to have the same color.348121664182418182424a,b,a,b. Method according to claim 1 , comprising adjusting a relative position between a sensor arrangement () and one of the first print () and the second print () based on a user input () specifying the user-selected arbitrary position ( claim 1 , ; ).46264. Method according to claim 3 , comprising presenting a graphical user interface (′) to permit the user input () by a user.512501416141450. Method according to claim 1 , comprising printing the first print () by the printer () prior to ...

Inkjet printing apparatus

An inkjet printing apparatus includes a printing unit including four inkjet heads configured to discharge black, cyan, magenta, and yellow inks, respectively, to a transferred sheet; and a control unit configured to control the printing unit, wherein the printing unit, when forming a gray image by the printing unit, forms a grey image with three color inks other than black when a level of influence on an ink landing position by an airflow under the inkjet head is a predetermined level or higher, forms the grey image with the black ink when the level of influence is lower than the predetermined level, and controls the printing unit to set higher print resolution and set smaller an ink discharge amount for one pixel from the inkjet head than when forming the gray image with other three color inks, in forming the gray image with the black ink.

Printing apparatus, printing method, image processing apparatus, storage medium, and print control apparatus

When the contact angle of a first color ink on a layer of a second color ink is larger than the contact angle of the second color ink on a layer of the first color ink, ejection of the first and the second color ink is controlled so that the number of pixel areas onto which the second color ink is applied after the first color ink is larger than the number of pixel areas onto which the first color ink is applied after the second color ink.

PRINTER, NON-TRANSITORY STORAGE MEDIUM STORING PLURALITY OF INSTRUCTIONS, AND CONTROL METHOD

A printer includes a printing device including a print head, a first moving device, and a second moving device, and a controller. The controller is configured to generate first partial-dot-data by executing a first generating process with respect to first partial-image data and generate second partial-dot-data by executing a second generating process with respect to second partial-image-data. In the second generating process, the controller determines a degree of reduction in density by the second generating process to a first degree of reduction in a first case where a particular condition including a code condition that is satisfied when the second partial-image includes at least a portion of a code image is satisfied, and determine the degree of reduction in density by the second generating process to a second degree different from the first degree of reduction when the second partial-image does not include the code image. 1. A printer , comprising: a print head having a plurality of nozzles arranged in a first direction and configured to discharge ink;', 'a first moving device configured to execute main scanning of moving the print head relatively with respect to a printing medium in a second direction intersecting the first direction; and', 'a second moving device configured to execute sub scanning of moving the printing medium relatively with respect to the print head in the first direction; and, 'a printing device including obtain object image data of an object image including a code image having a first area and a second area, brightness of which is different from brightness of the first area, the code image representing information by the first area and the second area;', 'specify the code image included in the object image;', 'generate dot data, by using the object image data, in which each of a plurality of pixels has information representing dot forming states of the ink; and', 'control the printing device to execute partial printing and the main ...

IMAGE PROCESSING APPARATUS AND METHOD FOR PROCESSING IMAGE

Multi-valued data is corrected using different correction values depending on an attribute of an image. 1. An image processing apparatus that generates recording data in which , in each of a plurality of relative scanning operations , which are performed , by a recording head including a discharge port column in which discharge ports for discharging ink are arranged in a certain direction , in a unit area of a recording medium in a direction perpendicular to the certain direction , whether or not to discharge ink from each of a plurality of discharge port groups , which are obtained by dividing the discharge port column in the certain direction , is specified for each of pixel areas in the unit area corresponding to pixels , the image processing apparatus comprising:a first obtaining unit configured to obtain information regarding a plurality of density values in an image recorded by each of the plurality of discharge port groups;a second obtaining unit configured to obtain image data corresponding to an image recorded in the unit area;a third obtaining unit configured to obtain information regarding an attribute of the image recorded in the unit area;a selection unit configured to select one of a plurality of mask pattern groups, each including a plurality of mask patterns corresponding to the plurality of scanning operations, on the basis of the attribute of the image indicated by the information obtained by the third obtaining unit;a fourth obtaining unit configured to obtain information regarding a plurality of contribution ratios of each of the plurality of discharge port groups on the basis of the mask pattern group selected by the selection unit, the plurality of contribution ratios being ratios of contribution of each of the plurality of discharge port groups to the recording in the unit area;a first generation unit configured to generate a correction value for correcting the image data on the basis of the plurality of density values indicated by the ...

PRINTING METHOD AND PRINTING APPARATUS

In a printing apparatus configured to print an image by bidirectional multipass printing while using multiple print element rows that apply color material of the same color, a high-quality image suppressed in hue unevenness and density unevenness is printed. To this end, the printing apparatus forms first and second dot patterns on a print medium in an overlapping manner. In the first dot pattern, dot arrays in which first dot groups are arranged at an interval B are arranged in a nozzle arrangement direction while being shifted from each other by C in a scanning direction of a print head. In the second dot pattern, dot arrays in which the first dot groups are arranged at the interval B are arranged in a nozzle arrangement direction while being shifted from each other by C in the scanning direction of the print head. Here, values of C and C are different. 1. A printing method comprising:a step of forming a first dot pattern in a predetermined region on a print medium by causing a printing unit to perform a forward scan in a main scanning direction intersecting a predetermined direction, the printing unit including a first print element row in which print elements configured to apply printing material are aligned at a predetermined resolution in the predetermined direction and a second print element row in which print elements configured to apply printing material are aligned at the predetermined resolution in the predetermined direction and are arranged while being shifted relative to the first print element row in the predetermined direction by a distance corresponding to a resolution twice the predetermined resolution; anda step of forming a second dot pattern in the predetermined region by causing the printing unit to perform a backward scan in the opposite direction to that of the forward scan, wherein [{'b': 1', '1', '1', '1', '1', '1', '1, 'in a first dot array that is any dot array printed by print elements of one of the first print element row and the second ...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

In an image forming apparatus (an ink jet printer ), in a sub scanning direction, when an area in arrange of a nozzle at an end portion of a head () to a nozzle at a predetermined distance is set as a predetermined area, and a medium is transported in a certain amount by using the head (), a scan portion, and a transport portion so as to form an image on medium sheet (), the number of times of scanning for forming a dot array which is formed by using the nozzles included in the predetermined area is more than the number of times of the scanning for forming a dot array which does not use the nozzle in the predetermined area, and the number of times of the scanning for forming the dot array by using the nozzles included in the predetermined area is at least three times. 1. An image forming apparatus comprising:a head including a plurality of nozzles which discharge a liquid with respect to a medium, the plurality of nozzles being configured with a first plurality of nozzles and a second plurality of nozzles;a scan mechanism configured to relatively scan the head in a main scanning direction with respect to the medium;a transport mechanism configured to relatively transport the medium in a sub scanning direction intersecting the main scanning direction with respect to the head;a memory configured to store computer-readable instructions; and alternately cause the scan mechanism to scan and the transport mechanism to transport so as to form an image on the medium by the discharged liquid; and', 'create image data corresponding to a first region on the medium formed by a first recording and a second region on the medium formed by a second recording when the processor is configured to maintain a movement amount of the transport mechanism as a constant value,, 'a processor configured to execute the computer-readable instructions so as towherein the first region and the second region are alternately arranged on the medium in the sub scanning direction,the first plurality of ...

COLOR CHART CREATING METHOD AND A COLOR CORRECTING METHOD

In printing image data for printing a color chart with a printing machine, instead of using a TAC value which is a total of CMYK values given to one pixel as a limit of ink amount supplied to a printing medium as done conventionally, creation of a color chart having a large color gamut is realized by considering and adjusting the amount of inks per unit area actually consumed at the time of printing and drying performance of each ink. 1. A color chart creating method for creating a color chart having a plurality of color patches arranged thereon for color correction of an inkjet printer , the method comprising:an ink amount setting step for setting an upper limit to ink amount per unit area that can be supplied to a printing medium, based on amounts of ink consumption when printing is done beforehand with the inkjet printer; anda printing step for printing with the inkjet printer the color chart having the plurality of color patches arranged thereon and formed of different colors on the printing medium using ink amounts smaller than the upper limit set in the ink amount setting step.2. The color chart creating method according to claim 1 , wherein:the ink amount setting step is preceded by an ink amount acquiring step for obtaining actual measurements of ink amounts with respect to colorimetric values in a device-dependent color space of each color patch based on the amounts of ink consumption when printing is done beforehand with the inkjet printer, and determining an upper limit of ink amount per unit area that can be supplied to the printing medium based on drying performance of inks; andthe upper limit determined in the ink amount acquiring step is set in the ink amount setting step.3. The color chart creating method according to claim 2 , wherein the ink amount acquiring step is executed by observing an ink transfer to a transport roller which contacts a printing surface of the printing medium when beltlike areas of different ink amounts per unit area are ...

Carriage and recording apparatus

Provided is a carriage including a head including a nozzle surface, the nozzle surface including nozzles configured to eject ink droplets, and a plasma actuator configured to apply an air current flowing along the nozzle surface.

INKJET PRINTER

An inkjet printer composes a first dot group including a first base dot group from ink dots of a first ink, and a second dot group including a second base dot group and a second additional dot group from ink dots of a second ink having a weaker color developing capability than the first ink. A total proportion of the first dot group with respect to the ink dots of the first ink is set to be a first print coverage greater than or equal to 100%. A total proportion of the second dot group with respect to the ink dots of the second ink is set to be a second print coverage greater than the first print coverage. Ink dots including the second additional dot group form a first print layer, and ink dots including the first base dot group and the second base dot group form a second print layer over or under the first print layer. 1. An inkjet printer comprising: a first ink head including a plurality of first nozzles that eject a first ink onto a recording medium, to form ink dots of the first ink on the recording medium; and', 'a second ink head including a plurality of second nozzles that eject a second ink onto the recording medium to form ink dots of the second ink on the recording medium, the second ink having a weaker color developing capability for the recording medium than the first ink; and, 'a recording head including a first composer that receives data for the ink dots of the first ink, and composes one or a plurality of first dot groups including at least a first base dot group from the ink dots of the first ink;', 'a second composer that receives data for the ink dots of the second ink, and composes a plurality of second dot groups including a second base dot group and a second additional dot group from the ink dots of the second ink;', 'a first print controller that controls the recording head to cause ink dots including at least the second additional dot group to form a first print layer on the recording medium;', 'a second print controller that controls the ...

IMAGE FORMING SYSTEM, DENSITY ADJUSTING METHOD, AND RECORDING MEDIUM

An image forming system includes an image forming apparatus configured to form an image on a recording medium and an output device configured to output information for a user. The image forming system further includes circuitry configured to acquire, from a reading device read data of the image on the recording medium; calculate a correction value of an image density of the read image; cause the image forming apparatus to form, on a recording medium, a corrected image based on the correction value; and acquire, from the reading device, read data of the corrected image; and cause the output device to output report information representing a relation between a density variation value of the corrected image and a threshold of the density variation value. 1. An image forming system comprising:an image forming apparatus configured to form an image on a recording medium;an output device configured to output information for a user; and acquire, from a reading device, read data of an image on the recording medium read by the reading device;', 'calculate a correction value of an image density of the read image;', 'cause the image forming apparatus to form, on a recording medium, a corrected image based on the correction value;', 'acquire, from the reading device, read data of the corrected image; and', 'cause the output device to output report information representing a relation between a density variation value of the corrected image and a threshold of the density variation value., 'circuitry configured to2. The image forming system according to claim 1 , determine whether the density variation value of the corrected image is within the threshold;', 'calculate a correction value of an image density of the corrected image in response to a determination that the density variation value of the corrected image is not within the threshold; and', 'output the report information in response to a determination that the density variation value of the corrected image is within the ...

PRINTHEAD ADJUSTMENT DEVICES, SYSTEMS, AND METHODS

A printing system includes a printhead carriage supporting a printhead and mounted to translate along a beam extending in an x-axis direction of an x-axis, y-axis, z-axis Cartesian coordinate system. A method of controlling the printing system includes sensing one or more of a rotational orientation of the printhead about the x-axis, y-axis, and the z-axis and a position of the printhead along the y-axis and z-axis. Based on the sensed one or more of the rotational orientation and the position, a position of one or more bearings arranged to support the printhead carriage on the beam is adjusted. Adjusting the position of the one or more bearings adjusts one or both of the rotational orientation of the printhead and the position of the printhead. Systems and methods relate to control of printing systems. 1. A method of controlling a printing system having a printhead carriage supporting a printhead and mounted to translate along a beam extending in an x-axis direction of an x-axis , y-axis , z-axis Cartesian coordinate system , the method comprising:sensing one or more of a rotational orientation of the printhead about the x-axis, the y-axis, or the z-axis and a position of the printhead along the y-axis or z-axis; andbased on the sensed one or more of the rotational orientation and the position, adjusting a position of one or more bearings arranged to support the printhead carriage on the beam, wherein adjusting the position of the one or more bearings adjusts one or more of the rotational orientation of the printhead and the position of the printhead.2. The method of claim 1 , wherein adjusting a position of the one or more bearings comprises actuating an actuator.3. The method of claim 1 , wherein adjusting the position of the one or more bearings comprises adjusting the position of the one or more bearings until the printhead carriage reaches one or both of a target rotational orientation and a target position.4. The method of claim 3 , further comprising sensing ...

LIQUID EJECTION APPARATUS, LIQUID EJECTION SYSTEM, AND LIQUID EJECTION METHOD

A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit. 1. A liquid ejection apparatus , comprising:a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object at different positions along a conveying path for conveying the conveyed object;a first support member that supports the conveyed object and is provided upstream of a landing position of the liquid ejected onto the conveyed object by a corresponding liquid ejection head unit of the plurality of liquid ejection head units;a second support member that supports the conveyed object and is provided downstream of the landing position of the corresponding liquid ejection head unit;at least one first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object with respect to an orthogonal direction that is orthogonal to a conveying direction of the conveyed object;at least one second detection unit that is installed upstream of the first detection unit and is configured to detect the position of the conveyed object with respect to the orthogonal direction; anda movement ...

Liquid Discharge Apparatus, Control Method for Liquid Discharge Apparatus, and Medium Storing Program Executable By Liquid Discharge Apparatus

A liquid discharge apparatus includes: a head which discharges a plurality of kinds of liquids; and a controller. The controller is configured to: calculate a total discharge amount of the liquids for a unit area of a recording medium based on discharge data for the unit area; determine whether the total discharge amount exceeds a predefined amount; in a case that the controller has determined that the total discharge amount exceeds the predefined amount, divide the discharge data into a plurality of pieces of divided discharge data, each of the pieces of divided discharge data indicating the total discharge amount of not more than the predefined amount; and perform a plurality of divided discharges for the unit area based on the pieces of divided discharge data. 1. A liquid discharge apparatus , comprising:a head configured to discharge a plurality of colors of liquids; anda controller, calculate a total discharge amount of the plurality of colors of liquids for a unit area of a recording medium based on discharge data for the unit area;', 'determine whether the total discharge amount exceeds a predefined amount;', 'in a case that the controller has determined that the total discharge amount exceeds the predefined amount, divide the discharge data into a plurality of pieces of divided discharge data, each of the pieces of divided discharge data indicating a total discharge amount which is not more than the predefined amount; and', 'perform a plurality of divided discharges for the unit area based on the pieces of divided discharge data,, 'wherein the controller is configured towherein at least one of the plurality of colors of liquids is discharged from the head in one divided discharge included in the plurality of divided discharges, andthe controller is configured to generate at least one of the plurality of pieces of divided discharge data in which at least one color of liquid is removed from the plurality of colors of liquids.2. The liquid discharge apparatus ...

IMAGE GENERATION ON A TRANSPARENT OR SEMITRANSPARENT SUBSTRATE

A method of generating an image on a transparent or semitransparent substrate, the method comprising analyzing a first image to be printed on a first side of the substrate to identify a region associated with a predominant color, printing, on the first side of the substrate a color patch with the identified predominant color, printing, on a second side of the substrate, a test color pattern overlapping with the color patch on the first side of the substrate, determining, in a transmission geometry, a color distribution in the color patch, and generating from the determined color distribution, for the region associated with the predominant color identified in the first image, a transmission mode color profile for printing on the second side of the substrate. 1. A method of generating an image on a transparent or semitransparent substrate , the method comprisinganalyzing a first image to be printed on a first side of the substrate to identify a region associated with a predominant color,printing, on the first side of the substrate a color patch with the identified predominant color,printing, on a second side of the substrate, a test color pattern overlapping with the color patch on the first side of the substrate,determining, in a transmission geometry, a color distribution in the color patch, and generating from the determined color distribution, for the region associated with the predominant color identified in the first image, a transmission mode color profile for printing on the second side of the substrate.2. The method of further comprisingprinting on the first side of the substrate, a test color pattern,determining, in a reflection geometry, a reflected color distribution in the test color pattern, andgenerating from the determined reflected color distribution, a reflection mode color profile for printing on the first side of the substrate.3. The method of claim 2 , wherein the color patch on the first side of the substrate is printed using the reflection mode ...

ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS

An element substrate comprises: a data latch unit for latching, based on a first signal, first print data and second print data which have been received by a reception unit; a first driving unit for driving printing elements based on a timing of a second signal and a logical operation result of printing element selection data and the first print data latched by the data latch unit; a delay unit for delaying the second signal by a predetermined time; an operation result latch unit for latching, based on the delayed second signal, a result of a logical operation of the printing element selection data and the second print data latched by the data latch unit; and a second driving unit for driving the printing elements in accordance with the latched operation result and the delayed second signal. 1. An element substrate comprising:printing elements;a reception unit configured to receive first print data and second print data;a data latch unit configured to latch, based on a first signal, the first print data and the second print data which have been received by the reception unit;a first driving unit configured to drive the printing elements based on a timing of a second signal and a logical operation result of printing element selection data and the first print data latched by the data latch unit;a delay unit configured to delay the second signal by a predetermined time;an operation result latch unit configured to latch, based on the second signal delayed by the delay unit, a result of a logical operation of the printing element selection data and the second print data latched by the data latch unit; anda second driving unit configured to drive the printing elements in accordance with the operation result latched by the operation result latch unit and the second signal delayed by the delay unit.2. The substrate according to claim 1 , further comprising:a first logical operation unit configured to perform a logical operation of the printing element selection data and the ...

INK-OPTIMIZED HALFTONE SCREEN

A method of generating data representing a halftone screen comprises generating tonal data of a first colorant for a plurality of pixels according to a darkness level by assigning a tonal value to at least a first subset of the plurality of pixels, wherein said tonal value takes a value equal to any of a plurality of ordered tonal values. A difference between a maximal tonal value and a minimal tonal value assigned to pixels of the first subset is equal to or smaller than a predefined threshold. For a given darkness level, a number of pixels with the minimal tonal value is maximized. The darkness level is related to a ratio of the sum of the tonal values of all pixels of the plurality of pixels to the number of pixels of the plurality of pixels. A pixel having a tonal value greater than the minimal tonal value assigned to pixels of the first subset is adjacent to a pixel having at least the same tonal value and the tonal value of every pixel is equal to or smaller than a predefined maximal value. 1. A method of generating data representing a halftone screen , the method comprising:generating tonal data of a first colorant for a plurality of pixels according to a darkness level by assigning a tonal value to at least a first subset of the plurality of pixels, wherein said tonal value takes a value equal to any of a plurality of ordered tonal values, wherein a difference between a maximal tonal value and a minimal tonal value assigned to pixels of the first subset is equal to or smaller than a predefined threshold; and wherein, for a given darkness level, a number of pixels with the minimal tonal value is maximized;wherein the darkness level is related to a ratio of the sum of the tonal values of all pixels of the plurality of pixels to the number of pixels of the plurality of pixels; wherein a pixel having a tonal value greater than the minimal tonal value assigned to pixels of the first subset is adjacent to a pixel having at least the same tonal value; and wherein ...

Printing control method, device and storage medium

A printing control method, a printing control device and a storage medium are provided. The method includes steps of: acquiring first scan times of first ink used for printing a unit area; acquiring second scan times of second ink used for printing a unit area; comparing the first scan times with the second scan times; according to a comparison result, controlling a printer to eject the first ink or/and the second ink in each scan in a main scan direction. The method and device are able to efficiently and quickly print a three-dimensional effect image.

Image Processing Apparatus Controlling Printing According to Unidirectional Printing Method or Bidirectional Printing Method

In an image processing apparatus, a processor sets a target printing method for printing a target image to one of a bidirectional printing method and a unidirectional printing method. In a case where the bidirectional printing method is set as the target printing method: the processor executes both a first generation process and a second generation process. The first generation process generates first partial print data by converting a set of partial image data using a first color conversion profile. The second generation process generates second partial print data by converting another set of partial image data using a second color conversion profile. In a case where the unidirectional printing method is set as the target printing method, the processor executes a third generation process generating third partial print data by converting a set of partial image data using a third color conversion profile. 1. An image processing apparatus comprising: a print head moving in a main scanning direction including a first direction and a second direction opposite the first direction, the print head including a first nozzle configured to eject first type ink, and a second nozzle configured to eject second type ink, the second nozzle being positioned apart from the first nozzle in the main scanning direction;', 'a main scanning unit configured to perform a main scan, the main scan including a first main scan to move the print head in the first direction as a printing direction, and a second main scan to move the print head in the second direction as the printing direction; and', 'a sub scanning unit configured to perform a sub scan to move a recording sheet relative to the print head in a sub scanning direction crossing the main scanning direction, the print execution unit performing printing a target image on the recording sheet by alternately executing a partial print and the sub scan a plurality of times, the target image being based on target image data having a plurality ...

IMAGE PROCESSING APPARATUS AND METHOD, DITHER MASK SET, AND IMAGE RECORDING APPARATUS

Provided are an image processing apparatus, an image processing method, a dither mask set, and an image recording apparatus capable of suppressing occurrence of banding and color unevenness without productivity decrease. Halftone processing is performed with respect to image data of a first color, in a range of a part of a recording duty, using a dither mask that realizes a first nozzle jetting rate in which a nozzle jetting rate of an end part nozzle is suppressed to be smaller than a nozzle jetting rate of a central nozzle. Further, halftone processing is performed with respect to image data of a second color different from the first color, using a dither mask that realizes a second nozzle jetting rate having smaller difference between the nozzle jetting rate of the end part nozzle and the nozzle jetting rate of the central nozzle than that in the first nozzle jetting rate. 1. An image processing apparatus that generates dot data indicating a disposition pattern of dots for each color for recording an image on a recording medium , while relatively moving a recording head having a nozzle row in which a plurality of nozzles that jet , for each of a plurality of colors of ink , each ink are arranged in a sub scan direction , in a main scan direction perpendicular to the sub scan direction and the sub scan direction with respect to the recording medium , comprising:a halftone processing unit that performs halftone processing with respect to image data of a first color among the plurality of colors, in a range of at least a part of a recording duty, using a dither mask that realizes a first nozzle jetting rate in which a nozzle jetting rate of an end part nozzle located at each of both end parts of the nozzle row is suppressed to be smaller than a nozzle jetting rate of a central nozzle located at a central part of the nozzle row, and performs halftone processing with respect to image data of a second color different from the first color among the plurality of colors, ...

Dot detection method and color image reproduction apparatus

A method for detecting a dot of functional material on a medium at a predetermined location, the dot having a predetermined color, is based on lightness, chroma and hue components of colors present in an area of the predetermined location on a scanned image of the printed medium. A color image reproduction apparatus is disclosed for carrying out the method for detecting a dot of functional material.

PRINTING APPARATUS AND PRINTING METHOD

A printing apparatus includes a head capable of discharging CMYK inks including a K ink, and a control unit configured to, based on image data to be printed, generate ink amount data for controlling an ink amount of each of the CMYK inks discharged by the head, and to control the head based on the ink amount data, wherein the control unit generates the ink amount data as ink amount data such that lightness of a composite color at least does not increase in a direction from a freely-selected coordinate point toward a black point, the composite color being formed by the CMY inks excluding the K ink based on ink amount data of each of the CMYK inks corresponding to a coordinate on a straight line from the freely-selected coordinate point toward the black point in a predetermined hue range of a color gamut of a color space of the image data. 1. A printing apparatus , comprising:a head configured to discharge a plurality of inks including a black-based ink; anda control unit configured to, based on image data to be printed, generate ink amount data for controlling an ink amount of each of the plurality of inks discharged by the head, and to control the head based on the ink amount data, whereinthe control unit generates the ink amount data as ink amount data such that lightness of a composite color at least does not increase in a direction from a freely-selected coordinate point toward a black point, the composite color being formed by the plurality of inks excluding the black-based ink based on ink amount data of each of the plurality of inks corresponding to a coordinate on a straight line from the freely-selected coordinate point toward the black point in a predetermined hue range of a color gamut of a color space of the image data.2. A printing apparatus , comprising:a head configured to discharge a plurality of inks including a black-based ink; anda control unit configured to, based on image data to be printed, generate ink amount data for controlling an ink amount ...

INKJET PRINTER AND INKJET PRINTING METHOD

Provided are an inkjet printer and an inkjet printing method with which, when image forming is performed on a web-shaped printing base material with inkjet inks, nozzles for discharging the inks are less liable to clog, streaks or density unevenness is less liable to occur at the time of solid printing, and a density of a single-color printing portion is easily increased. The inkjet printer for an inkjet ink is configured to perform image forming by discharging inkjet inks on a web-shaped printing base material by a single-pass method. The inkjet printer includes: a conveyance mechanism configured to continuously convey the web-shaped printing base material; a plurality of single-pass inkjet heads configured to discharge the inkjet inks to a front surface of the web-shaped printing base material conveyed by the conveyance mechanism; and a curing device configured to cure the inkjet inks discharged on the front surface of the web-shaped printing base material. Resolutions of the plurality of single-pass inkjet heads are varied depending on colors of the inkjet inks. 1. An inkjet printer for an inkjet ink , which is configured to perform image forming by discharging inkjet inks on a web-shaped printing base material by a single-pass method , the inkjet printer comprising:a conveyance mechanism configured to continuously convey the webshaped printing base material;a plurality of single-pass inkjet heads configured to discharge the inkjet inks to a front surface of the web-shaped printing base material conveyed by the conveyance mechanism; anda curing device configured to cure the inkjet inks discharged on the front surface of the web-shaped printing base material,wherein resolutions of the plurality of single-pass inkjet heads are varied depending on colors of the inkjet inks.2. The inkjet printer according to claim 1 ,wherein the colors of the inkjet inks include a white color, andwherein a resolution of an inkjet head configured to discharge a white ink is lower than ...

Method for adjusting a setup for an encoder for printing to a recording medium of unknown thickness with a multi-row inkjet print head in a printing system

In a method for adjusting a setup for an encoder for printing to a recording medium of unknown thickness with a multi-row inkjet print head in a printing system, a continuous test line is printed onto the recording medium, transversal to a feed direction of said recording medium, a varied width of the test line is measured, and the adjustment of the setup is modified to minimize the width of the test line.

CALIBRATION OF A SENSOR

In one example of the disclosure, an uncalibrated sensor may be calibrated. Calibrated sensor data is obtained. The data relates to an amount of light transmitted through an ink solution of a first colour as a function of ink concentration. An amount of light transmitted through an ink solution of the first colour is measured, using the uncalibrated sensor, at a plurality of ink concentrations. A calibration factor relating the light transmission of the calibrated sensor for the first colour and the light transmission of the uncalibrated sensor for the first colour is determined, using a processor, based on the obtained data and the measurements. 1. A method for calibrating an uncalibrated sensor , the method comprising:obtaining calibrated sensor data, the data relating to an amount of light transmitted through an ink solution of a first colour as a function of ink concentration;measuring, using the uncalibrated sensor, at a plurality of ink concentrations, an amount of light transmitted through an ink solution of the first colour; anddetermining, using a processor, based on the obtained data and the measurements, a calibration factor relating the light transmission of the calibrated sensor for the first colour and the light transmission of the uncalibrated sensor for the first colour.2. A method according to claim 1 , further comprising:storing the calibration factor in a storage medium associated with the uncalibrated sensor.3. A method according to claim 1 , further comprising:applying the calibration factor to data acquired using the uncalibrated sensor.4. A method according to claim 1 , further comprising:determining a relationship between a concentration of ink in an ink solution of the first colour and a concentration of ink in an ink solution of the second colour that result in the same amount of light being transmitted.5. A method according to claim 4 , further comprising:applying the determined relationship to data acquired using the uncalibrated sensor.6 ...

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

Color separation processing is performed on the input image data to generate material amount data representing the recording amount of each recording material. Halftone processing of generating binary data for each recording scan in an image recording apparatus is performed based on the material amount data. A discharge of a colored material in a first recording scan of recording the colored material and a discharge of a high transmissivity material in a second recording scan of recording the high transmissivity material are represented by the binary data for each recording scan. The high transmissivity material is recorded at a predetermined thickness on a recording layer of the colored material after the first recording scan. 1. An image processing apparatus for generating image data for image recording using , as recording materials , a colored material and a high transmissivity material higher in transmittance than the colored material , comprising:a color separation unit configured to perform color separation processing on input image data so as to generate material amount data representing a recording amount of each recoding material; anda generation unit configured to perform halftone processing of generating binary data for each recording scan in an image recording apparatus based on the material amount data,wherein a discharge of the colored material in a first recording scan of recording the colored material and a discharge of the high transmissivity material in a second recording scan of recording the high transmissivity material are represented by the binary data for each recording scan,wherein the high transmissivity material is recorded at a predetermined thickness on a recording layer of the colored material after the first recording scan, andwherein at least one of the color separation unit, or the generation unit is implemented using a processor.2. The apparatus according to claim 1 , wherein the generation unit comprises:a setting unit configured ...

LIQUID DISCHARGING APPARATUS AND LIQUID DISCHARGING METHOD

A liquid discharging technique is provided that conveniently carries out recording (printing) with a desired coloring relative to media (fabric or the like) with various characteristics such as an ink color development property. A textile printing apparatus is a liquid discharging apparatus which discharges a liquid (an ink) onto a recording medium (a fabric 1) and records an image and includes a liquid discharging section (a head ) which discharges the ink onto the fabric 1 based on correction image information which is corrected according to coloring information for the fabric 1 which is obtained from the fabric 1 which is supplied to the textile printing apparatus 1. A liquid discharging apparatus configured to discharge a liquid onto a recording medium and configured to record an image , the liquid discharging apparatus comprising:a liquid discharging section configured to discharge the liquid onto the recording medium based on correction image information which is corrected according to coloring information for the recording medium which is obtained from the recording medium which is supplied to the liquid discharging apparatus.2. The liquid discharging apparatus according to claim 1 , further comprisinga coloring information acquiring section configured to acquire the coloring information.3. The liquid discharging apparatus according to claim 2 , further comprisinga supply section configured to accommodate the recording medium before the liquid is discharged, anda transport section configured to transport the recording medium from the supply section to an image forming section where the liquid discharging section discharges the liquid and forms the image with regard to the recording medium,the coloring information acquiring section being disposed between the supply section and the image forming section on a transport path where the recording medium is transported by the transport section.4. The liquid discharging apparatus according to claim 3 , further ...

FIRING MASKS

A printing apparatus is disclosed. The printing apparatus comprises a printhead and a controller. The printhead includes an array of nozzles, each having an actuator to eject a printing fluid, the array of nozzles having a first and a second subset of nozzles, wherein the first subset is located at the vicinity of an edge of the printhead. The controller is to assign a firing mask so that the actuators corresponding to the first subset of nozzles are instructed to eject the printing fluid with a higher energy level than the actuators corresponding to the second subset of nozzles. 1. A printing apparatus comprising:a printhead including an array of nozzles, each having an actuator to eject a printing fluid, the array of nozzles having a first and a second subset of nozzles, wherein the first subset is located at the vicinity of an edge of the printhead; anda controller to assign a firing mask so that the actuators corresponding to the first subset of nozzles are instructed to eject the printing fluid with a higher energy level than the actuators corresponding to the second subset of nozzles.2. The printing apparatus of claim 1 , wherein the controller is to:receive a print job to be printed;receive a print mode in which the print job is to be printed;wherein in a first print mode, the controller is to determine a first firing mask based on the print mode in which the first subset of nozzles is to eject the printing fluid at a higher energy level than the second subset of nozzles; andwherein in a second print mode, the controller is to determine a second firing mask based on the print mode in which the first subset of the array of nozzles is to eject the printing fluid at an equal or lower energy level than the second subset of nozzles.3. The printing apparatus of claim 2 , wherein the second firing mask is one from the group comprising a ramp mask and a square mask.4. The printing apparatus of claim 2 , wherein the first firing mask is an inverted ramp mask.5. The ...

Pseudo-Metallic Inkjet Printing

A process for using an inkjet printer to apply translucent inks for producing a pseudo-metallic visual effect on a substrate is disclosed. The process uses a matte printing technique that results in a metallic appearance when applied to various substrates, such as commercial plastic cards. The resulting card product is also disclosed. 1. A process for creating a pseudo-metallic ink print using an inkjet printer , comprising:a. applying to a first side of a first substrate an array of ink dots;b. curing the translucent ink droplets substantially instantaneously upon contact with the substrate;c. applying to a first side of a second substrate an opaque grayscale ink;d. curing the grayscale ink; ande. laminating the first substrate to the second substrate, wherein the first side of the first substrate contacts the second side of the second substrate.2. The process of claim 1 , where the first substrate is a transparent substrate.3. The process of claim 1 , where the array of ink dots are arranged in an image and applied in a pseudo-randomized size and location distribution density.4. The process of claim 1 , where the mix of translucent ink droplets approximates a golden metallic color.5. The process of claim 1 , where the translucent inks are applied in 600 dots per inch binary resolution.6. The process of claim 1 , where the printer is set to a matte printing mode.7. The process of claim 1 , where the ink curing lamp is set “on” for both the leading and trailing edge of the printhead.8. A process for creating a pseudo-metallic ink print on an inkjet printer claim 1 , comprising:a. applying to a first side of a substrate an opaque ink;b. curing the ink;c. applying to the first side of the substrate a mix of translucent ink droplets, where the ink droplets are arranged in a randomized size and location distribution density;d. curing the translucent ink droplets substantially instantaneously upon contact with the substrate; ande. laminating to the first side of the ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM

An image processing apparatus converts a first combination including color signals respectively corresponding to first ink, second ink, and third ink, which are input to be recorded in a first area on a recording medium into a second combination including color signals respectively corresponding to the first ink, the second ink, and the third ink, and converts a third combination including color signals respective corresponding to the first ink, the second ink, and the third ink which are input to be recorded in a second area on the recording medium into a fourth combination including color signals respectively corresponding to the first ink, the second ink, and the third ink, wherein a difference between a color of a first image and a color of a second image is reduced and a difference between a frequency of the first image and a frequency of the second image is reduced. 1. An image processing apparatus for a printing apparatus , wherein the printing apparatus records an image in a first area on a recording medium with use of a first nozzle group in a first nozzle array including a plurality of nozzles for discharging first ink arranged in a predetermined direction , a second nozzle group in a second nozzle array including a plurality of nozzles for discharging second ink arranged in the predetermined direction , and a third nozzle group in a third nozzle array including a plurality of nozzles for discharging third ink arranged in the predetermined direction , and wherein the printing apparatus records an image in a second area different in position in the predetermined direction from the first area on the recording medium with use of a fourth nozzle group which does not include nozzles included in the first nozzle group out of the plurality of nozzles of the first nozzle array , a fifth nozzle group which does not include nozzles included in the second nozzle group out of the plurality of nozzles of the second nozzle array , and a sixth nozzle group which does not ...

PRINTING METHOD AND INK DISCHARGE AMOUNT UPPER LIMIT DETERMINING METHOD

A printing method includes determining the upper limit of the amount of the ink to be discharged based on a color saturation suppression upper limit, and at least one of an overflowing suppression upper limit, a bleeding suppression upper limit, and an aggregation suppression upper limit. The determining of the upper limit of the amount of the ink to be discharged includes setting in advance priorities among the suppressing of the color saturation of the ink and at least one of the overflowing of the ink, the bleeding of the ink, and the aggregation of the ink, and determining the upper limit of the amount of the ink to be discharged based on the priorities. 1. A printing method for discharging ink onto a printing medium to print an image on the printing medium , the printing method comprising:printing on a medium a test pattern for determining an upper limit of an amount of ink to be discharged;capturing an image of the medium on which the test pattern has been printed;executing color measurement on the medium on which the test pattern has been printed; and a color saturation suppression upper limit calculated based on color measurement information of the medium obtained by the color measurement, the color saturation suppression upper limit being an upper limit of the amount of the ink to be discharged for suppressing color saturation of the ink, and', an overflowing suppression upper limit calculated based on imaging information of the medium obtained from the image captured, the overflowing suppression upper limit being an upper limit of the amount of the ink to be discharged for suppressing overflowing of the ink,', 'a bleeding suppression upper limit calculated based on the imaging information, the bleeding suppression upper limit being an upper limit of the amount of the ink to be discharged for suppressing bleeding of the ink, and', 'an aggregation suppression upper limit calculated based on the imaging information, the aggregation suppression upper limit ...

Image Processing Device Generating Print Data Using Profile Corresponding to Printing Direction

In an image processing device, a controller is configured to perform: selecting; generating; and outputting. The selecting selects a target partial image one by one from a plurality of partial images. The target partial image is represented by target partial image data. The generating generates partial print data for a partial print by executing an image process on the target partial image data. The partial print forms the target partial image while moving a print head in a printing direction. The partial print forms the target partial image while moving a print head in a printing direction. The image process includes a color conversion process. The color conversion process is executed on the target partial image data using one of a first profile and a second profile selected in accordance with the printing direction set for the partial print. The outputting outputs the partial print data to the printer. 1. An image processing device communicable with a printer , the printer including: a print head having a plurality of nozzles , each of the plurality of nozzles being configured to eject a droplet of one of a plurality of types of ink including a first type of ink and a second type of ink , the plurality of nozzles including a first nozzle and a second nozzle disposed apart from the first nozzle in a main scanning direction , the first nozzle being configured to eject a droplet of the first type of ink , the second nozzle being configured to eject a droplet of a second type of ink; a first scanner configured to perform a main scan moving the print head relative to a printing medium in a printing direction , the printing direction being set to one of a first direction and a second direction , the first direction and the second direction being parallel to the main scanning direction and being opposite to each other; and a second scanner configured to perform a sub scan intermittently moving the printing medium relative to the print head in a sub scanning direction ...

INKJET PRINTER IMAGE IMPROVEMENT TECHNIQUES

Techniques for reducing or eliminating image banding in an ink-jet image are provided. In an example, a method of operating a printer to reduce or eliminate image banding can include generating command profile for printing a given image, applying a filter to the command profile to provide a filtered profile, and dispensing ink from a printhead of the printer based on the filtered profile. In certain examples, the filter can randomize droplet sizes of ink dispensed while executing the printing to reduce or eliminate image banding. 1. An apparatus comprising:a print head configured to selectively emit ink toward a print area to generate a printed image, the print head, relative to the print area, configured to pass across the print area along a first linear axis to provide the printed image; anda controller configured to receive a representation of the printed image, to control motion of the print head to execute multiple passes of the print head across the print area along the first linear axis based on the representation, to provide first control signals to control emission of the ink from the print head based on the representation, and to apply a filter to the first control signals to provide second control signals that control droplet sizes of the ink from a plurality of ink jet nozzles of the print head such that the droplet sizes differ between the plurality of ink jet nozzles within a given print pass of the multiple passes of the print head along the first linear axis so as to reduce visual banding of the printed image.2. The apparatus of claim 1 , wherein the print head is an ink jet print head configured to emit ultra-violet (UV) curable ink.3. (canceled)4. The apparatus of claim 1 , wherein the filter is a stochastic claim 1 , blue noise filter.5. The apparatus of claim 1 , wherein the multiple passes are configured to increase an opacity of the printed image compared to a first pass of the multiple passes.6. A method of operating a printer claim 1 , the ...

MACHINE LEARNING METHOD, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING MACHINE LEARNING PROGRAM, AND LIQUID DISCHARGE SYSTEM

A machine learning method includes: obtaining a discharge parameter on discharging performed by a liquid discharge head discharging liquid; obtaining an image quality determination result produced by determining a printed image quality; and learning the relationship between the discharge parameter and the image quality determination result. Also, the discharge parameter desirably includes a discharge state value indicating a discharge state of the liquid discharge head and a discharge result value indicating a discharge result of the liquid discharged on a print medium from the liquid discharge head. The machine learning method includes learning the relationship between the discharge state value and the discharge result value, and the image quality determination result. 1. A machine learning method comprising:obtaining a discharge parameter on discharging performed by a liquid discharge head discharging liquid;obtaining an image quality determination result produced by determining a printed image quality; andlearning a relationship between the discharge parameter and the image quality determination result.2. The machine learning method according to claim 1 , whereinthe discharge parameter includes a discharge state value indicating a discharge state of the liquid discharge head and a discharge result value indicating a discharge result of liquid discharged on a print medium from the liquid discharge head; andthe machine learning method further includeslearning a relationship between the discharge state value and the discharge result value, and the image quality determination result.3. The machine learning method according to claim 2 , further comprising:generating a data set associating the discharge state value and the discharge result value with the image quality determination result, andadding a weight in accordance with contents of a combination of the discharge state value and the discharge result value to the data set.4. The machine learning method according ...

PRINTING DEVICE AND COLOR DEVELOPMENT CONTROLLING METHOD

To appropriately color develop ink according to a print condition even when carrying out the printing step and the color developing step in a series of steps. A printing device includes a printing machine that discharges an ink to a print medium and a color developing machine that heats the print medium, on which the ink discharged by the printing machine is attached, to color develop the ink. The printing device includes a controller that adjusts at least one of a heating time and a heating temperature of the print medium by the color developing machine according to at least one of a transporting speed of the print medium transported from the printing machine and an amount of the ink which is discharged. 1. A printing device , comprising:a printing machine that discharges an ink to a print medium;a color developing machine that heats the print medium, on which the ink discharged by the printing machine is attached, to color develop the ink; anda controller that adjusts at least one of a heating time and a heating temperature of the print medium by the color developing machine according to at least one of a transporting speed of the print medium transported from the printing machine and an amount of the ink which is discharged.2. The printing device according to claim 1 , further comprising:a heater that generates heat by electric conduction and heats the print medium;wherein the controller adjusts an electric conducting amount to the heater according to at least one of the transporting speed of the print medium and the amount of the ink which is discharged.3. The printing device according to claim 2 , whereinthe controller increases the electric conducting amount to the heater as the transporting speed of the print medium becomes faster.4. The printing device according to claim 2 , whereinthe controller increases the electric conducting amount to the heater as a discharging amount of the ink to the print medium becomes greater.5. The printing device according to ...

RECORDING CONTROL DEVICE AND RECORDING CONTROL METHOD

A plurality of nozzle rows include a first nozzle row including a plurality of first nozzles configured to discharge first ink, a second nozzle row including a plurality of second nozzles configured to discharge second ink, and a third nozzle row including a plurality of third nozzles configured to discharge third ink. The third nozzle row is provided between the first nozzle row and the second nozzle row in the relative movement direction. When the first ink to be discharged from the first nozzle is replaced at least by the second ink to be discharged from the second nozzle and the third ink to be discharged from the third nozzle, the first control section forms an edge portion of an output image to be formed on a medium in such a manner that a first use rate is lower than a second use rate, the first use rate being a use rate of the second nozzle for the edge portion of the output image, the second use rate being a use rate of the second nozzle for a non-edge portion of the output image. 1. A recording control device configured to control recording on a medium by a recording head including a plurality of nozzle rows , and a relative movement of the recording head and the medium in a relative movement direction that intersects a nozzle alignment direction of the nozzle row , whereinthe plurality of nozzle rows include a first nozzle row including a plurality of first nozzles configured to discharge first ink, a second nozzle row including a plurality of second nozzles configured to discharge second ink, and a third nozzle row including a plurality of third nozzles configured to discharge third ink;the third nozzle row is provided between the first nozzle row and the second nozzle row in the relative movement direction;a first control section configured to form an edge portion of an output image to be formed on the medium, and a second control section configured to form a non-edge portion of the output image are provided; andwhen the first ink to be discharged from ...

PRINTING APPARATUS, PRINTING CONTROL APPARATUS, AND CONTROL METHOD OF PRINTING APPARATUS

A printer includes: a printing section; a transport belt that transports a print medium; a camera that detects both end portions in an intersecting direction that intersects a transport direction of the print medium among end portions of the print medium placed on the transport belt; and a control section that causes the printing section to execute printing based on print data while one end portion of the both end portions detected by the camera is set as a print start position and a distance from the one end portion to the other end portion is set as a width of the print medium. 1. A printing apparatus comprising:a printing section;a transport belt that transports a print medium;a sensor that detects both end portions in an intersecting direction that intersects a transport direction of the print medium among end portions of the print medium placed on the transport belt; anda control section that causes the printing section to execute printing based on print data while one end portion of the both end portions detected by the sensor is set as a print start position and a distance from the one end portion to the other end portion is set as a width of the print medium.2. The printing apparatus according to claim 1 , whereinthe printing section includes a print head, andthe sensor is provided downstream of a placement start position at which the transport belt starts placement of the print medium and upstream of the print head in the transport direction.3. The printing apparatus according to claim 1 , whereinthe printing section includes a print head and a carriage on which the print head is mounted, andthe sensor is provided in the carriage.4. The printing apparatus according to claim 1 , whereinthe control section detects the both end portions by the sensor based on a color difference between a color of the transport belt and a color of the print medium.5. The printing apparatus according to claim 1 , whereinthe control section changes the print start position ...

INKJET PRINTING METHOD AND APPARATUS

Provided is an inkjet printing method using a plurality of nozzles which are controlled to discharge discrete quantities of ink mapped to a specific control value, of which a control value and discrete quantities of ink are mapped, if the specific control value is inputted, the inkjet printing method including the steps of: inputting a control value mapped to specific discrete quantities of ink to the plurality of nozzles to measure discharge performance of the plurality of nozzles; classifying the plurality of nozzles into a plurality of nozzle groups based on the discharge performance measured on the plurality of nozzles; adjusting a mapped relation between the discrete quantities of ink and the control value for the classified nozzle groups; and performing inkjet printing based on a mapped relation between the discrete quantities of ink and the control value. 1. An inkjet printing method using a plurality of nozzles which are controlled to discharge discrete quantities of ink mapped to a specific control value , of which a control value and discrete quantities of ink are mapped , if the specific control value is inputted , the inkjet printing method comprising the steps of:measuring discharge performance of the plurality of nozzles by inputting a control value mapped to specific discrete quantities of ink;classifying the plurality of nozzles into a plurality of nozzle groups based on the discharge performance measured on the plurality of nozzles;adjusting a mapped relation between the discrete quantities of ink and the control value for the classified nozzle groups; andperforming inkjet printing based on the adjusted mapped relation between the discrete quantities of ink and the control value.2. The inkjet printing method according to claim 1 , wherein the step of classifying the plurality of nozzles into the plurality of nozzle groups includes a step of sorting the plurality of nozzle groups to correspond to the number of steps of the control value for ...

METHOD OF PRINTING AND PRINTING APPARATUS

A method comprises printing an image using a printhead cartridge including a number of dies, each die comprising a nozzle array, the printing comprising: determining a drop parameter of fluid drops ejected from nozzles of the nozzle array of at least one die; comparing the drop parameter to a threshold value; and determining an image characteristic of an image to be printed; and if the image characteristic meets a defined criterion and if the drop parameter exceeds the threshold value, applying a second print mask for printing the image; and if the image characteristic does not meet the defined criterion or if the drop parameter does not exceed the threshold value, applying a first print mask for printing the image, wherein the second print mask uses less nozzles of the nozzle arrays than the first print mask. 1. A method comprising:printing an image using a printhead including a number of dies, each die comprising a nozzle array, the printing comprising:determining a drop parameter of fluid drops ejected from nozzles of the nozzle array of at least one die;comparing the drop parameter to a threshold value; anddetermining an image characteristic of an image to be printed; andif the image characteristic meets a defined criterion and if the drop parameter exceeds the threshold value, applying a second print mask for printing the image; andif the image characteristic does not meet the defined criterion or if the drop parameter does not exceed the threshold value, applying a first print mask for printing the image, wherein the second print mask uses less nozzles of the nozzle arrays than the first print mask.2. The method of wherein the drop parameter is based on a drop weight claim 1 , a drop velocity or a combination thereof.3. The method of wherein the image characteristic is a continuous area of the image which is to be covered by a solid color claim 1 , wherein the continuous area is at least x % of the entire image area claim 1 , wherein 5≤x≤100 or 10≤x≤100.4. The ...

Inkjet Printer

Upon determination that a paper to be printed is a first type of paper, a controller deletes pixels at least in one line from one side end of a pattern image forming a black information code in an information recording direction, and drives a printing unit to eject an ink of at least one color other than black in addition to an ink of black to pixels at least in one line at each of two side ends in the information recording direction of the pattern image with the pixels at least in the one line being deleted such that the pattern image is printed with a same width in the information recording direction as a width of the black information code included in an image data. 1. An inkjet printer comprising:a printing unit including a black nozzle array having a plurality of nozzles to eject an ink of black and at least one other nozzle array having a plurality of nozzles to eject an ink of color other than black, the printing unit being configured to eject the inks onto paper from the plurality of nozzles in the black nozzle array and the other nozzle array while transferring the paper; anda controller configured to drive the printing unit to perform printing on the paper based on image data, whereinthe printing unit is capable of performing printing on a first type of paper having a first degree of ink bleed and on a second type of paper having a second degree of ink bleed larger than the first degree of ink bleed, and determine whether the image data includes a black information code,', 'upon determination that the image data includes the black information code, determine whether a paper to be printed is the first type of paper, and', 'upon determination that the paper to be printed is the first type of paper, delete pixels at least in one line from one side end of a pattern image forming the black information code in an information recording direction, and drive the printing unit to eject the ink of at least one color other than black in addition to the ink of black to ...

INK-JET RECORDING APPARATUS

An ink-jet recording apparatus configured to record an image based on image data on a sheet, the ink-jet recording apparatus includes a first roller pair, a second roller pair, a carriage, a recording head, and a controller configured to: control the first roller pair and the second roller pair to perform intermittent conveyance of the sheet; control the carriage and the recording head to record a one-pass image on the sheet; and calculate an overlap amount, in the conveyance direction, of a one-pass image to be recorded on the sheet in a predefined one pass and a one-pass image to be recorded on the sheet in a next one pass after the predefined one pass. 1. An ink-jet recording apparatus configured to record an image corresponding to image data on a sheet , the ink-jet recording apparatus comprising:a first roller pair configured to convey the sheet in a conveyance direction while nipping the sheet;a recording head disposed downstream of the first roller pair in the conveyance direction, having a nozzle surface in which nozzles are formed in a nozzle area, and configured to jet ink droplets from the nozzles to the sheet;a carriage carrying the recording head and configured to move in a width direction intersecting with the conveyance direction;a second roller pair disposed downstream of the recording head in the conveyance direction and configured to convey the sheet in the conveyance direction while nipping the sheet; and control the first roller pair and the second roller pair to perform intermittent conveyance of the sheet;', 'control the carriage and the recording head to record on a partial recording area of the sheet by causing the recording head to jet the ink droplets during movement of the carriage in the width direction in a state where the sheet is stopped in the intermittent conveyance of the sheet; and', 'perform the intermittent conveyance of the sheet and recording on the partial recording area of the sheet alternately multiple times to record the ...

Ink-jet recording apparatus

An ink-jet recording apparatus configured to record an image based on image data on a sheet, the ink-jet recording apparatus includes a first roller pair, a second roller pair, a carriage, a recording head, and a controller configured to: control the first roller pair and the second roller pair to perform intermittent conveyance of the sheet; control the carriage and the recording head to record a one-pass image on the sheet; and calculate an overlap amount, in the conveyance direction, of a one-pass image to be recorded on the sheet in a predefined one pass and a one-pass image to be recorded on the sheet in a next one pass after the predefined one pass.

PRINT BAR SPACING CALIBRATIONS

In one example, a printing device can include a print zone that includes a print head and a print media area, wherein the print zone includes a paper to print head spacing (PPS) that corresponds to a distance between the print head and the print media area, and a computing device that includes instructions to determine a first print quality of an image on a print medium utilizing a first PPS value, and alter the first PPS value to a second PPS value based on the first print quality. 1. A printing device , comprising:a print zone that includes a print head and a print media area, wherein the print zone includes a paper to print head spacing (PPS) that corresponds to a distance between the print head and the print media area; and determine a first print quality of an image on a print medium utilizing a first PPS value; and', 'alter the first PPS value to a second PPS value based on the first print quality., 'a computing device comprising instructions to2. The printing device of claim 1 , wherein the computing device comprises instructions to:determine a second print quality of the image on the print medium utilizing the second PPS value;alter the second PPS value to a third PPS value based on the second print quality; anddetermine a third print quality of the image on the print medium utilizing the third PPS value.3. The printing device of claim 2 , wherein the computing device comprises instructions to alter the third PPS value to the second PPS value when the second print quality and the third print quality are above a threshold print quality.4. The printing device of claim 2 , wherein the computing device comprises instructions to:determine a print quality trend for the first PPS value, the second PPS value, and the third PPS value; andselect a PPS value based on the print quality trend.5. The printing device of claim 4 , wherein the print quality trend is determined in response to an image generated by the print zone exceeding a quantity of print quality defects.6 ...

Inkjet Nozzle Flushing Mechanism

A method is disclosed. The method includes receiving print job data, rasterizing the print job data to generate image data for each page of the print job data to be printed, calculating a coverage per unit area for two or more color planes of each page of the image data and calculating a flushing mask to flush nozzles of the inkjet print head.

MULTIPLE IMAGES ON PHOTO DRUMS

A photo drum may be to receive a color separation. A controller may be to change a location of the color separation on the photo drum from a first location to a second location when a separation location history for the color separation is outside of a threshold range. 1. A printing system , comprising:a photo drum having a first location and a second location at which to repeatedly receive an image; anda controller to change a location at which the photo drum will next receive a first image on the photo drum from the first location to the second location when a location history for the first image indicates that the first image has been received on the photo drum at the first location a number of times that is outside of a threshold range.2. The printing system of claim 1 , wherein the number of times the first image has been received on the photo drum at the first location is outside the threshold range when the first image has been positioned in the first location more than a first percentage of a total number of times that the first image has been positioned on the photo drum.3. The printing system of claim 2 , wherein the first percentage is between 55% and 75%.4. The printing system of claim 1 , wherein the number of times the first image has been received on the photo drum at the first location is outside the threshold range when the first image has been positioned in the first location less than a second percentage of the total number of times that the first image has been positioned on the photo drum.5. The printing system of claim 4 , wherein the second percentage is between 25% and 45%.6. The printing system of claim 1 , wherein the controller is to change the location of the first image on the photo drum from the first location to the second location by inserting an odd number of null segments into a print image pipeline.7. The printing system of claim 1 , wherein the controller is to change the location of the first image on the photo drum from the ...

Apparatus and non-transitory computer-readable medium

An apparatus includes a memory storing computer-readable instructions to cause the apparatus to perform determining a scanning number of times. The scanning number of times is a number of times that a carriage of a printer is to be moved to increase a maximum density of a first ink to be higher than a unit density. The instructions also cause the apparatus to perform generating print data to cause ejection of the first and a second ink by multi-pass scans in a final printing unit. The final printing unit is continuous scans corresponding to a number of passes including a last scan, among the scans to be performed the scanning number of times. The second ink is an ink whose density is equal to or less than the unit density, among the different inks.

DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD

The present invention reduces an uneven color of a color having two or more colors of inks, the uneven color occurring due to manufacturing variations of ink ejection nozzles and so on. Each of a plurality of correction tables that is assigned to each predetermined number of nozzles that are used for printing on a common region in the print medium, of a plurality of nozzle arrays formed on a print head, each of the nozzle arrays ejecting a plurality of inks including a first ink and a second ink whose color is different from the color of the first ink, is generated on the basis of at least an ink ejection property of nozzles ejecting the first and second inks. 1. A data processing apparatus performing color correction processing on a color signal of each pixel of image data to be printed on a print medium using a print head , the color signal having a plurality of elements in a predetermined color space , the data processing apparatus comprising:a table generation unit configured to generate a plurality of correction tables assigned to each nozzle or each of a predetermined number of nozzles that are used for printing on a common region in the print medium in a plurality of nozzle arrays, respectively, the plurality of nozzle arrays being formed on the print head and ejecting a plurality of inks including a first ink and a second ink having a different color from the first ink, whereinthe table generation unit generates each of the plurality of correction tables on the basis of an ink ejection property of nozzles that eject at least the first and second inks.2. The data processing apparatus according to claim 1 , further comprising a pattern generation unit configured to generate a pattern on a print medium with the use of the print head claim 1 , the pattern being used to generate each of the plurality of correction tables.3. The data processing apparatus according to claim 1 , whereineach of the plurality of correction tables has a color cube of color signals, ...

MULTIPLE MONOCHROMATIC PRINT CARTRIDGE PRINTING METHOD

A printing method includes the steps of: receiving a colour image and separating the colour image into a plurality of distinct colour planes; dithering a first distinct colour plane to obtain dot data for the first distinct colour plane; dithering a second distinct colour plane to obtain dot data for the second distinct colour plane; providing the dot data for the first distinct colour plane to a first print head cartridge for printing by a plurality of nozzle rows of the first print head cartridge; and providing the dot data for the second distinct colour plane to a second print head cartridge positioned downstream from the first print head cartridge in a direction of print media propagation, the dot data for the second distinct colour plane for printing by a plurality of nozzle rows of the second print head cartridge. 1. A printing method , comprising the steps of:receiving a colour image and separating the colour image into a plurality of distinct colour planes;dithering a first distinct colour plane to obtain dot data for the first distinct colour plane;dithering a second distinct colour plane to obtain dot data for the second distinct colour plane;providing the dot data for the first distinct colour plane to a first print head cartridge for printing by a plurality of nozzle rows of the first print head cartridge; andproviding the dot data for the second distinct colour plane to a second print head cartridge positioned downstream from the first print head cartridge in a direction of print media propagation, the dot data for the second distinct colour plane for printing by a plurality of nozzle rows of the second print head cartridge.2. A printing method according to claim 1 , further comprising a step of adding a delay to the dot data for the second distinct colour plane claim 1 , the delay compensating for the spatial separation of the second print head cartridge from the first print head cartridge.3. A printing method according to claim 1 , further comprising ...

Method for adjusting head module, method for manufacturing inkjet head,and inkjet head

A method for adjusting a head module of an inkjet head in which a plurality of head modules having nozzles capable of ejecting droplets are connected and linked together is disclosed. The inkjet head has an overlapping region in which an arrangement sequence of the head modules corresponding to the ejected droplets is alternate between adjacent head modules. The method includes the steps of: obtaining, among intervals between the droplet ejected by one of the head modules and the droplet ejected by another one of the head modules in the overlapping region, a largest interval between the droplets in a direction of alignment of the head modules based upon movement of the droplets caused by a landing interference; and adjusting the adjacent head modules in a direction to decrease the largest interval between the droplets.

Controller, printer, and computer-readable storage medium

A controller includes a print controller configured to cause the print execution engine to convey the print medium in a conveying direction and execute a plurality of partial printings. The print controller causes the print execution engine to execute first and second partial printings. On a print medium, first and second target ranges on which printing is to be performed by the first and second partial printings, respectively, form an overlapping range. The first and second target ranges include first and second non-overlapping ranges, respectively, that do not overlap the second and first target ranges, respectively. The print controller generates print data based on non-overlapping range data and overlapping range data. The generating the print data includes increasing a density of at least a portion of the image to be printed in the overlapping range as compared with a density of the images to be printed in the non-overlapping ranges.

COLOR-TO-COLOR CORRECTION IN A PRINTING SYSTEM

A method for performing color-to-color correction for printing multiple copies of a print job having one or more documents is disclosed. A first copy of the print job is printed using a plurality of color planes. A first plurality of color registration errors produced during the printing of the first copy of the print job is determined. For each document in the print job, one or more processors are used to determine a global color plane correction value for each color plane error based on the first plurality of color registration errors. The global color plane correction values are adjusted locally based on the first plurality of local color plane correction values. A second copy of the print job is printed using the locally adjusted global color plane correction values for each document in the print job. 1. A method for performing color-to-color correction for printing multiple copies of a print job having one or more documents , comprising:printing a first copy of the print job using a plurality of color planes;determining a first plurality of color registration errors produced during the printing of the first copy of the print job; i) determine a global color plane correction value for each color plane error produced during the printing of the first copy of the print job based on the first plurality of color registration errors;', 'ii) determine a first plurality of local color plane correction values for each color registration error produced during the printing of the first copy of the print job, wherein each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors; and', 'iii) locally adjust the global color plane correction value for each of the plurality of color planes based on the first plurality of local color plane correction values; and, 'for each document in the print job, using one or more processors toprinting a second copy of the print job using the locally adjusted global ...

COLOR-TO-COLOR CORRECTION IN A PRINTING SYSTEM

A printing system for printing multiple copies of a print job having one or more documents is disclosed. A plurality of printheads prints each of a plurality of color planes of a first copy of the print job. One or more processors determine a first plurality of color registration errors produced during the printing of the first copy of the print job. Global color plane correction values for each document of the print job are determined. The global color plane correction values are adjusted locally for each document based on the first plurality of local color plane correction values. The plurality of printheads prints a second copy of the print job using the locally adjusted global color plane correction values for each document in the print job. 1. A printing system for printing multiple copies of a print job having one or more documents , comprising:a plurality of printheads adapted to print on a print medium, wherein each of the plurality of printheads prints each of a plurality of color planes of a first copy of the print job;one or more processors to:i) determine a first plurality of color registration errors produced during the printing of the first copy of the print job;ii) determine global color plane correction values for each document of the first copy of the print job based on the first plurality of color registration errors;iii) determine a first plurality of local color plane correction values for each color registration error produced during the printing of the first copy of the print job, wherein each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors; andiv) locally adjust the global color plane correction values for each document based on the first plurality of local color plane correction values; andthe plurality of printheads printing a second copy of the print job using the locally adjusted global color plane correction values for each document in the print job.2. ...

COLOR-TO-COLOR CORRECTION IN A PRINTING SYSTEM

A method for performing color-to-color correction for printing multiple copies of a print job having one or more documents is disclosed. A first copy of the print job is printed using a plurality of color planes. A first plurality of color registration errors produced during the printing of the first copy of the print job is determined. For each document in the print job, a processor is used to determine a first plurality of local color plane correction values for each color registration error produced during the printing of the first copy of the print job. Each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors. A second copy of the print job is printed using the local color plane correction values for each document in the print job. 1. A method for performing color-to-color correction for printing multiple copies of a print job having one or more documents , comprising:printing a first copy of the print job using a plurality of color planes;determining a first plurality of color registration errors produced during the printing of the first copy of the print job;for each document in the print job, using a processor to determine a first plurality of local color plane correction values for each color registration error produced during the printing of the first copy of the print job, wherein each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors; andprinting a second copy of the print job using the local color plane correction values for each document in the print job.2. The method as in claim 1 , further comprising storing the plurality of local color plane correction values in processor accessible memory for printing subsequent print jobs.3. The method as in claim 2 , further comprising:determining a second plurality of color registration errors produced during the printing of the second copy of the ...

COLOR-TO-COLOR CORRECTION IN A PRINTING SYSTEM

A printing system for printing multiple copies of a print job having one or more documents is disclosed. A plurality of printheads prints each of a plurality of color planes of a first copy of the print job. A processor is used to determine a first plurality of color registration errors produced during the printing of the first copy of the print job. A first plurality of local color plane correction values for each document of the print job is determined. Each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors. The plurality of printheads prints a second copy of the print job using the local color plane correction values for each document in the print job. 1. A printing system for printing multiple copies of a print job having one or more documents , comprising:a plurality of printheads adapted to print on a print medium, wherein each of the plurality of printheads prints each of a plurality of color planes of a first copy of the print job;a processor to determine a first plurality of color registration errors produced during the printing of the first copy of the print job; and to determine a first plurality of local color plane correction values for each document of the print job, wherein each of the first plurality of local color plane correction values corresponds to one of the first plurality of color registration errors; andthe plurality of printheads printing a second copy of the print job using the local color plane correction values for each document in the print job.2. The printing system as in claim 1 , further comprising a storage device to store the plurality of local color plane correction values for printing subsequent copies of the print job.3. The printing system as in claim 2 , further comprising:the processor to determine a second plurality of color registration errors produced during the printing of the second copy of the print job; determine a second plurality of ...

COLOR-TO-COLOR CORRECTION IN A PRINTING SYSTEM

Methods and systems for performing color-to-color correction for printing multiple print jobs comprise receiving a first print job, wherein the first print job has one or more documents, receiving a second print job, wherein at least a portion of one of the documents in the second print job is different from a corresponding document in the first print job, and printing a copy of the first print job. One or more processors are used to determine a plurality of color plane registration errors produced during the printing of the copy of the first print job, local color plane correction values based on the plurality of color registration errors, and a difference between the corresponding documents in the first print job and second print job. When the amount of difference is less than a predetermined threshold, the local color plane correction values are used to print the second print job. 1. A method for performing color-to-color correction for printing multiple print jobs , comprising:receiving a first print job, wherein the first print job has one or more documents;receiving a second print job, wherein at least a portion of one of the documents in the second print job is different from a corresponding document in the first print job;printing a copy of the first print job;using one or more processors to:i) determine a plurality of color plane registration errors produced during the printing of the copy of the first print job;ii) to determine local color plane correction values based on the plurality of color registration errors; andiii) to compute a difference between the corresponding documents in the first print job and second print job; andwhen the amount of difference is less than a predetermined threshold, using the local color plane correction values to print the second print job; andwhen the amount of difference is more than the predetermined threshold, determining matching portions of the first and second print job, printing the matching portions of the second ...

DOT CLOCK SIGNAL GENERATION FOR OPERATING EJECTORS IN MULTIPLE COLOR STATIONS IN A SUBSTRATE PRINTER

A printer includes a plurality of dot clock signal generators, each of which generates dot clock signals for operating ejectors in a printhead in a color station of the printer. The dot clock signal generators are connected in a chain that corresponds to the process direction of the color stations in the printer. Each dot clock signal generator is configured to count dot clock signals of a preceding dot clock signal generator in the chain or a reference clock generator to determine when the dot clock signal generator turns on and to count encoder signals corresponding to movement of a substrate through the printer to determine when to generate dot clock signals for a color station. 1. A substrate printer comprising:an encoder configured to generate a pulse train, each pulse in the pulse train being indicative that a roller associated with a media transport has rotated a predetermined distance;a substrate detector configured to generate a signal indicating a leading edge of a substrate being carried by the media transport has passed the substrate detector;a plurality of dot clock signal generators, each dot clock generator being operatively connected to a firing signal generator in a plurality of color stations of the substrate printer in a one-to-one correspondence between the plurality of dot clock signal generators and the plurality of color stations, and each dot clock signal generator being connected to one another to form a chain of dot clock signal generators in a process direction and to the encoder, a first dot clock signal generator being configured to count pulses in the encoder pulse train upon detection of the signal generated by the substrate detector and to generate dot clock signals when the count of the pulses reaches a first predetermined value and each remaining dot clock signal generator being configured to count pulses in the encoder pulse train upon detection of a predetermined number of dot clock signals being generated by the preceding dot ...

System And Method For Process Direction Registration Of Inkjets In A Printer Operating With A High Speed Image Receiving Surface

A method for process direction registration in an inkjet printer includes ejecting ink drops from a first inkjet at less than a maximum operating rate onto an image receiving surface moving in a process direction. The method includes generating image data samples of the image receiving surface including the ink drops. The method further includes identifying a center of the ink drops in the process direction with reference to the image data samples and storing a time offset value in a memory to correct an identified process direction offset between the identified center of the ink drops and another identified center of ink drops that are ejected by another inkjet. 1. A method for registration of an inkjet in a printhead comprising:moving an image receiving surface in a process direction past a printhead and an optical sensor;ejecting a plurality of drops from a first inkjet in the printhead at a first predetermined rate onto the image receiving surface, the first rate of ejecting the ink drops from the first inkjet being less than a maximum ejection rate of the first inkjet;generating with the optical sensor a plurality of image data samples of the image receiving surface including a plurality of portions of the image receiving surface that received the plurality of drops ejected from the first inkjet, the plurality of image data samples being generated at a second predetermined rate, the second predetermined rate being less than the maximum ejection rate of the first inkjet to enable at least one image data sample between two image data samples depicting an ink drop to depict a portion of the image receiving surface that does not have an ink drop;identifying a center of the plurality of ink drops on the image receiving surface in the process direction with reference to the plurality of image data samples;identifying a process direction offset between the identified center of the plurality of drops ejected from the first inkjet and a center identified with reference ...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

In the technology of the present disclosure, multiple nozzles included in a printing head are stably driven while disparity in the usage frequency of each nozzle is suppressed. The dot counter scans the digital halftone data in the X direction and performs accumulation-counting on the pixel value Ixy (the number of printing dots) of each pixel for each address y with the accumulation counter CntCum(y). The signal value Gxy of the corresponding pixel address (x, y) is obtained from the division pattern memory unit. The nozzle selection unit selects the nozzle to be used for forming a printing dot, based on the counted values of the accumulation counter CntCum and the signal value Gxy of the division pattern. Then, the address n of the nozzle memory corresponding to the selected nozzle to form a printing dot is determined. 1. An information processing apparatus for controlling a printing apparatus including a printing head in which a plurality of nozzle arrays having a plurality of nozzles that eject ink being aligned in a predetermined direction are arranged , so as to perform printing of each pixel with each nozzle set , which includes one nozzle each from each nozzle array , the information processing apparatus comprising:an obtainment unit configured to obtain digital halftone data which is configured with a plurality of pixels each of which holds a pixel value indicative of the number of printing dots to be formed with ink that is ejected from nozzles;an allocation unit configured to set a plurality of nozzle groups that evenly divide the plurality of nozzles included in each nozzle set and allocate one of the plurality of nozzle groups to each pixel of the digital halftone data so that appearance frequencies of the respective nozzle groups are approximately even; anda selection unit configured to select the number of nozzles corresponding to a pixel value of a pixel from among a plurality of nozzles that are set as one of the nozzle groups allocated to the pixel ...

Inkjet printing apparatus

A printing apparatus comprises: a transport mechanism that transports a recording medium; a first line head group including a first line head in number of N that ejects first ink; a second line head group including a second line head in number of M that ejects second ink; and a controller, where M is a natural number larger than N. The line heads form images along lines extending in a width direction along a surface of the recording medium by ejecting ink droplets from a plurality of nozzles aligned in the width direction. In a first printing step, the controller makes each of the first line head in number of N perform printing process on every N-th line, while making each of the second line heads in number of M perform the printing process on every M-th line.

Image Processing Apparatus Controlling Printing According to Unidirectional Printing Method or Bidirectional Printing Method

In an image processing apparatus, a processor sets a target printing method for printing a target image to one of a bidirectional printing method and a unidirectional printing method. In a case where the bidirectional printing method is set as the target printing method: the processor executes both a first generation process and a second generation process. The first generation process generates first partial print data by converting a set of partial image data using a first color conversion profile. The second generation process generates second partial print data by converting another set of partial image data using a second color conversion profile. In a case where the unidirectional printing method is set as the target printing method, the processor executes a third generation process generating third partial print data by converting a set of partial image data using a third color conversion profile.

METHOD OF MINIMIZING STITCHING ARTIFACTS FOR OVERLAPPING PRINTHEAD SEGMENTS

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) determining a continuous seam in the strip based on a cost function, the cost function including a parameter selected from the group consisting of: (a) minimizing a density of printed ink along the seam; and (b) maximizing a luminance along the seam; and (iii) printing the image using the first and second printhead segments, the printing including stitching the first and second printhead segments across the seam. The strip contains variable image content and the seam has a varying position within the strip. 2. The method of claim 1 , wherein the strip contains regions of relatively higher ink density and regions of relatively lower ink density claim 1 , and wherein the seam is a continuous path passing through at least some of the regions of relatively lower ink density.3. The method of claim 1 , wherein the seam is determined from a row-by-row analysis of the image content contained in the strip claim 1 , each row having a stitch point determined by the cost function.4. The method of claim 3 , wherein the cost function includes a parameter defining a maximum threshold distance between contiguous stitch points in the strip.5. The method of claim 1 , wherein the cost function includes a parameter weighting the seam towards edges in the image content.6. The method of claim 1 , wherein the seam is determined using a seam carving algorithm.7. The method of claim 1 , wherein the first and second printhead segments are stitched across the seam using a stitching technique selected from at least one of:(a) printing using only nozzles from the first printhead segment at one side of the seam and printing using only nozzles from the second printhead segment at the other side of the seam; and(b) printing using nozzles ...

METHOD OF PRINTING FOREGROUND AND BACKGROUND IMAGES WITH OVERLAPPING PRINTHEAD SEGMENTS

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) identifying a foreground image and a background image for image content contained in the strip; (iii) determining a seam in the foreground image; (iv) printing the foreground image using only nozzles from the first printhead segment at one side of the seam and only nozzles from the second printhead segment at the other side of the seam; and (v) printing the background image using nozzles from both the first and second printhead segments across the overlap region. 1. A method of printing an image using a printing system comprising at least first and second overlapping printhead segments , the method comprising the steps of:(i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments;(ii) identifying a foreground image and a background image for image content contained in the strip;(iii) determining a seam in the foreground image;(iv) printing the foreground image using only nozzles from the first printhead segment at one side of the seam and only nozzles from the second printhead segment at the other side of the seam; and(v) printing the background image using nozzles from both the first and second printhead segments across the overlap region.2. The method of claim 1 , wherein the foreground image comprises one or more of: text and line work.3. The method of claim 1 , wherein the background image comprises contone graphics.4. The method of claim 1 , wherein the foreground image is separated from the background image using a threshold image intensity in a raster graphics image.5. The method of claim 1 , wherein the foreground image is based on a vector graphics image.6. The method of claim 1 , wherein the seam is selected from:(a) a linear seam having a ...

PRINT QUALITY SETUP USING BANKS IN PARALLEL

The present invention embraces a method and apparatus for an efficient and economical print quality setup for thermal printers. A thermal printhead of a thermal printer constitutes multiple printhead banks. The printhead banks may be controlled by strobe signals. While configuring print quality, each of the strobe signals may operate separately with different power causing the printhead banks to operate in different configurations while printing an identical pattern. As each the banks are operating in different configuration, they each print the identical pattern with a different print quality. One print quality may be selected from the different quality patterns printed by each printhead bank on a single printed label or media. The selected quality pattern corresponds to a quality factor. The method may reduce the time to select a configuration and may reduce the amount of usage of media or labels. 1. A printer , comprising:a set of printhead banks, wherein each of the set of printhead banks is operable to independently print an identical pattern with a different print quality on a media;a processor operable to generate a strobe signal for each of the set of printhead banks based on a quality factor, wherein the quality factor determines the print quality for each of the identical patterns on the media, wherein the processor selects the quality factor based on a user selection of a preferred pattern; andthe media comprising a set of the identical patterns, each with different print quality, each printed by a different printhead bank,wherein, the processor sends a corresponding strobe signal and data signal to a corresponding printhead bank of the set of printhead banks.2. The printer according to claim 1 , wherein a placement of the printer in a normal print mode of operation causes the set of printhead banks to print media based on the quality factor corresponding to the preferred pattern selection.3. The printer according to claim 1 , wherein an algorithm of the ...

BACKGROUND PRINT AGENT ENCLOSED REGION REMOVAL

In one example in accordance with the present disclosure, a printing device is described. The printing device includes a print controller with a processor and memory. The print controller generates print instructions. Specifically, the print controller receives print image data representing an image to be printed and identifies enclosed regions in a background print agent plane. The print controller also determines a size of the enclosed regions of background print agent plane and responsive to the size of an enclosed region being smaller than a threshold size, removes the enclosed region from the background print agent plane. The printing device also includes a print agent distribution system to apply the background print agent and the image print agent to a substrate according to the print instructions. 1. A printing device , comprising: receiving print image data representing an image to be printed;', 'identifying, in the print image data, enclosed regions in a background print agent in a background print agent plane;', 'determine a size of the enclosed regions of background print agent; and', 'responsive to the size of an enclosed region being smaller than a threshold size, removing the enclosed region from the background print agent plane; and, 'a print controller comprising a processor and memory, the print controller to generate print instructions bya print agent distribution system to apply the background print agent and the image print agent to a substrate according to the print instructions.2. The printing device of claim 1 , wherein the print controller is to restore removed enclosed regions where a size of a connected component formed of dilated enclosed regions is greater than a threshold size.3. The printing device of claim 1 , wherein the print controller is to:identify, a coincident edge region between the background print agent plane and an image print agent plane, wherein the coincident edge region is an edge in an area to be printed with both the ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND INK JET PRINTING SYSTEM

Provided are an image processing apparatus, an image processing method, a program, and an ink jet printing system that can perform image formation capable of preventing the deterioration of image quality caused by bleeding in a case in which printing is performed on cloth. An image processing apparatus acquires base material information including at least information indicating the quality of fiber in cloth which is a medium to be printed and image data to be printed on the cloth and generates a bleeding-prevented image indicating an ink application pattern in which at least one of an ink application position or an amount of ink applied is limited in anticipation of wetting and spreading of the ink in the cloth, on the basis of the base material information and the image data 1. An image processing apparatus comprising:base material information acquisition means for acquiring base material information including at least information indicating a quality of fiber in cloth which is a medium to be printed;image acquisition means for acquiring image data to be printed on the cloth; andbleeding prevention image processing means for generating a bleeding-prevented image indicating an ink application pattern in which at least one of an ink application position or an amount of ink applied is limited in anticipation of wetting and spreading of the ink in the cloth, on the basis of the base material information and the image data.2. The image processing apparatus according to claim 1 ,wherein the base material information includes yarn type information for specifying a quality of warp and weft as the information indicating the quality of the fiber.3. The image processing apparatus according to claim 1 ,wherein the base material information includes weave type information indicating the type of weave and thickness information indicating a thickness of a yarn.4. The image processing apparatus according to claim 1 , further comprising:operation means for receiving an operation of ...

Method for manufacturing printing apparatus, and printing apparatus

A printing apparatus provided with a detection circuit executes: printing a first undercoat color on a printing medium; performing a calibration with respect to the printed first undercoat color; printing an adjustment pattern using a first pattern color that has a complementary-color relationship with the first undercoat color; detecting the adjustment pattern using the detection circuit; and making an adjustment based on the detected adjustment pattern.

PRINTING APPARATUS AND PRINTING METHOD

The remaining amounts of inks in tanks are obtained, and, based on the obtained results, whether direction for printing an image next is to be inverted with respect to a set direction. This can reduce a difference in ink remaining amount between the tanks corresponding to print heads. 1. A printing apparatus comprising:a first printing unit having printing elements for ejecting ink stored in a first tank, the first printing unit being configured to perform printing on a first region on a recording medium conveyed in a conveying direction;a second printing unit having printing elements for ejecting ink stored in a second tank, the second printing unit being disposed separately from the first printing unit by a predetermined distance in a scanning direction intersecting with the conveying direction, the second printing unit being configured to perform printing on a second region different from the first region in the scanning direction on the recording medium;an obtaining unit configured to obtain first information regarding a remaining amount of the ink in the first tank and second information regarding a remaining amount of the ink in the second tank;a determining unit configured to determine an direction of an image to be printed on the recording medium based on the first information and the second information; anda control unit configured to control printing to be performed on the image based on a result of the determination performed by the determining unit.2. The printing apparatus according to claim 1 , wherein the determining unit determines a direction of the image based on a difference between a value indicated by the first information and a value indicated by the second information.3. The printing apparatus according to claim 2 , wherein claim 2 , in a case where the difference is equal to or lower than a predetermined amount claim 2 , the determining unit determines an direction enabling a top part of the image to be printed on a downstream side in the ...

INKJET IMAGE FORMING APPARATUS

An inkjet image forming apparatus includes ink heads, a drive voltage controller that adjusts density by controlling each drive voltage of the ink heads, a halftone processing controller that adjusts density by changing the number of ink droplets ejected from each nozzle of the ink heads, and a density adjustment controller that prints and scans a density adjustment pattern to calculate an adjustment value of each density level. The density adjustment controller adjusts density of a lowest density level so that the drive voltage controller controls each drive voltage based on the adjustment value of the lowest density level, and adjusts density of each density level other than the lowest density level so that the halftone processing controller changes the number of ink droplets based on the adjustment value of each density level other than the lowest density level and the adjustment result by the drive voltage controller. 1. An inkjet image forming apparatus comprising:a plurality of ink heads that are aligned along a direction perpendicular to a feed direction of print sheet and configured to inject ink droplets with a plurality of density levels;a drive voltage controller configured to adjust density among the plurality of ink heads by controlling each drive voltage of the plurality of ink heads to change amounts of ink droplets injected from nozzles of the plurality of ink heads;a halftone processing controller configured to adjust density by changing the number of ink droplets ejected from each nozzle of the plurality of ink heads by a halftone processing; anda density adjustment controller configured to print a density adjustment pattern by injecting ink droplets from the nozzles of the plurality of ink heads with a single dot pitch to form different printed areas with respect to each of the plurality of density levels and with respect to each of the plurality of inkjet heads, and then scan the density adjustment pattern to calculate an adjustment value for ...

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND INK JET PRINTING SYSTEM

Provided are an image processing apparatus, an image processing method, a program, and an ink jet printing system that can perform image formation capable of improving texture and preventing bleeding in a case in which printing is performed on cloth. An image processing apparatus acquires base material information including at least information indicating the quality of fiber in cloth which is a medium to be printed and image data of a pattern to be printed on the cloth and generates a pretreatment liquid image that indicates a pretreatment liquid application pattern defining a pretreatment liquid application position where a pretreatment liquid including a functional material for preventing wetting and spreading of ink in the cloth is applied and a pretreatment liquid non-application position where the application of the pretreatment liquid is limited, on the basis of the base material information and the image data 1. An image processing apparatus comprising:base material information acquisition means for acquiring base material information including at least information indicating a quality of fiber in cloth which is a medium to be printed;image acquisition means for acquiring image data of a pattern to be printed on the cloth; andpretreatment liquid image generation means for generating a pretreatment liquid image that indicates a pretreatment liquid application pattern defining a pretreatment liquid application position where a pretreatment liquid including a functional material for preventing wetting and spreading of ink in the cloth is applied and a pretreatment liquid non-application position where the application of the pretreatment liquid is limited, on the basis of the base material information and the image data,wherein the base material information includes weave type information indicating the type of weave and thickness information indicating a thickness of a yarn.2. The image processing apparatus according to claim 1 ,wherein the base material ...

IMAGE FORMING APPARATUS

An image forming apparatus includes a head, a first controller, and a second controller. When calculating an amount of ink used, the first controller obtains an estimated number of discharges, which is the number of dots of the ink to be discharged, on a basis of print image data which is image data used for printing, without using information on an actual number of discharges of the ink at the head. The first controller obtains a print usage on a basis of a value obtained by multiplying the obtained estimated number of discharges by a discharged droplet amount per ink discharge. The print usage is the amount of the ink used, discharged onto a paper for printing each page of a print job. 1. An image forming apparatus comprising:a head configured to include a plurality of nozzles and discharge ink from the plurality of nozzles;a first controller configured to manage a print job using the head and calculate an amount of the ink used in the print job; anda second controller configured to control ink discharge at the head on a basis of an instruction of the first controller,wherein when calculating the amount of the ink used, the first controller:obtains an estimated number of discharges, which is the number of dots of the ink to be discharged, on a basis of print image data which is image data used for printing, without using information on an actual number of discharges of the ink at the head, andobtains a print usage on a basis of a value obtained by multiplying the obtained estimated number of discharges by a discharged droplet amount per ink discharge, andwherein the print usage is the amount of the ink used, discharged onto a paper for printing each page of the print job.2. The image forming apparatus according to claim 1 ,wherein the first controller performs halftone processing of the print image data to generate ink discharge image data,transmits the generated ink discharge image data to the second controller, andobtains the estimated number of discharges on a ...

SECONDARY COLOR UNIFORMITY COMPENSATION MECHANISM

A printing system is disclosed. The printing system includes at least one physical memory device to store calibration logic and one or more processors coupled with the at least one physical memory device to execute the calibration logic to perform uniformity compensation of a plurality of secondary colors printed by pel forming elements, each of the pel forming elements associated with one of a plurality of primary colors, including generating a uniformity compensated first primary color transfer function for each of the pel forming elements associated with a first primary color and a uniformity compensated second color transfer function for each of the pel forming elements associated with a second primary color, generating an updated uniformity compensated first primary color transfer function for each of the pel forming elements associated with the first primary color and a uniformity compensated third primary color transfer function for each of the pel forming elements associated with a third primary color and generating an updated uniformity compensated second primary color transfer function for each of the pel forming elements associated with the second primary color and an updated uniformity compensated third primary color transfer function for each of the pel forming elements associated with a third primary color. 1. A system comprising:at least one physical memory device to store calibration logic; and generating a uniformity compensated first primary color transfer function for each of the pel forming elements associated with a first primary color and a uniformity compensated second primary color transfer function for each of the pel forming elements associated with a second primary color;', 'generating an updated uniformity compensated first primary color transfer function for each of the pel forming elements associated with the first primary color and a uniformity compensated third primary color transfer function for each of the pel forming elements ...

Printing systems and methods for operating printing systems

Methods performed by a printing system are described herein. A portion of a print area is located by operating an optical sensor to respond to a color shift. The color shift is from a printed reference color. The color shift is caused by a fixer fluid applied to the portion. Printing systems and tangible machine readable storage mediums are also described herein.

GENERATING A HALFTONE

In one example, a first subset of a plurality of pixels in a halftone is determined to be associated with a first colorant. A second subset of the plurality of pixels in the halftone is determined to be associated with a second colorant, the second colorant being different from the first colorant. Pixel data associating a pixel in the plurality of pixels in the halftone with the first colorant and not the second colorant is generated when the pixel is included in the first subset and the second subset. Pixel data associating the pixel in the plurality of pixels in the halftone with the second colorant and not the first colorant is generated when the pixel is included in the second subset and not the first subset. 1. A method comprising; first data representing a first halftone screen, the first halftone screen associating a first subset of the plurality of pixels in the halftone with a first colorant; and', 'second data representing a second halftone screen, the second halftone screen associating a second subset of the plurality of pixels in the halftone with a second colorant, the second colorant being different from the first colorant;, 'generating halftone data representing a plurality of pixels in a halftone, the halftone data comprisingidentifying one or more pixels common to the first subset of the plurality of pixels and the second subset of the plurality of pixels; andmodifying the second data to remove the one or more pixels from the second subset of pixels.2. The method of claim 1 , wherein the first subset of the plurality of pixels defines a first continuous region corresponding to first dot in a first amplitude modulated halftone pattern and the second subset of the plurality of pixels defines a second continuous region corresponding to a second dot in a second amplitude modulated halftone pattern.3. The method of claim 1 , wherein the first subset of the plurality of pixels are spatially distributed according to a first frequency modulated halftone ...

Fast Measurement of Droplet Parameters in Industrial Printing System

A droplet measurement system (DMS) is used in concern with an industrial printer used to fabricate a thin film layer of a flat panel electronic device. A clear tape serves as a printing substrate to receive droplets from hundreds of nozzles simultaneously, while an optics system photographs the deposited droplets through the tape (i.e., through a side opposite the printhead). This permits immediate image analysis of deposited droplets, for parameters such as per-nozzle volume, landing position and other characteristics, without having to substantially reposition the DMS or printhead. The tape can then be advanced and used for a new measurement. By providing such a high degree of concurrency, the described system permits rapid measurement and update of droplet parameters for printers that use hundreds or thousands of nozzles, to provide a real-time understanding of per-nozzle expected droplet parameters, in a manner that can be factored into print planning. 1. (canceled)2. A method of fabricating a thin-film layer of an electronic product , the method comprising:receiving a substrate into a manufacturing system;while the substrate is in a printing area of the manufacturing system, printing droplets of a liquid onto the substrate from respective nozzles of one or more printheads of the manufacturing system, the droplets of the liquid to coalesce to form a liquid coat on the substrate, the liquid carrying a film-forming material, wherein there are at least five hundred of the respective nozzles carried by the one or more printheads;processing the liquid coat to solidify the film-forming material so as to form the thin-film layer therefrom; andunloading the substrate from the manufacturing system; robotically transporting the one or more printheads to a location within the manufacturing system, outside of the printing area,', 'while the one or more printheads are at the location, using a droplet measurement system to collectively image droplets respectively produced by ...

LIQUID EJECTION APPARATUS, LIQUID EJECTION SYSTEM, AND LIQUID EJECTION METHOD

A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit. 1. A liquid ejection apparatus , comprising:a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object at different positions along a conveying path for conveying the conveyed object;a first support member that supports the conveyed object and is provided upstream of a landing position of the liquid ejected onto the conveyed object by a corresponding liquid ejection head unit of the plurality of liquid ejection head units;a second support member that supports the conveyed object and is provided downstream of the landing position of the corresponding liquid ejection head unit;at least one first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object with respect to an orthogonal direction that is orthogonal to a conveying direction of the conveyed object;at least one second detection unit that is installed upstream of the first detection unit and is configured to detect the position of the conveyed object with respect to the orthogonal direction; anda movement ...

Printing control apparatus and printing control method

In a printing apparatus capable of printing the same pixel by a plurality of print elements, a print speed is increased, and further, a partial frequency of use of each of the print elements is reduced, so as to prolong the lifetime of the print head. In view of this, dithering is used as a pseudo-halftone representing method, and further, a distribution pattern for use in creating image data to be distributed to each of the plurality of print elements is switched.

Serpentine direction reversal in bidirectional error diffusion halftoning

Bidirectional error diffusion halftoning of data. Pixels are halftoned in one serpentine direction, and pixels are halftoned in an opposite serpentine direction.

Methods and system includes measuring a calibration chart using ink limits to generate tone reproduction curve (trc) for adjusting original color profile

A color printing system includes a color management service and one or more printing devices. An ink limit is specified for a calibration operation that uses a calibration chart to obtain measurement data. Using the measurement data, a calibration tone reproduction curve (TRC) along with calibration settings is generated. The calibration TRC and the ink limit are stored. For a print job, the calibration is identified and used to retrieve the calibration TRC and the ink limit. The original ICC profile for the calibration TRC also is provided. The ink limit is used to adjust the ICC profile accordingly. The adjusted ICC profile is used for color printing one or more documents for a print job.

IMAGE FORMING APPARATUS

An image forming apparatus includes: a classification unit configured to classify ink colors to be superimposedly ejected in a region with a color tone change within a color image formed on a print sheet into a reference color exempted from an ejection timing correction and a correction color subjected to the ejection timing correction, for each line, based on information on comparison between minimum drop numbers acquired by a drop number acquisition unit and information on comparison between drop number distributions acquired by a distribution acquisition unit; a correction scheme acquisition unit configured to acquire a correction scheme of the ink ejection timing of the correction color in the region, for each line; and a correction unit configured to correct the ink ejection timing of the correction color in the region with the correction scheme acquired by the correction scheme acquisition unit, for each line. 1. An image forming apparatus comprising:line heads for respective colors arranged in a sub-scanning direction, each of the line heads having a plurality of nozzles arranged in a main scanning direction perpendicular to the sub-scanning direction, and configured to allow ink ejected from nozzles of the plurality of nozzles to superimposedly land on a print sheet conveyed in the sub-scanning direction to forma color image on the print sheet;a drop number acquisition unit configured to acquire a minimum drop number of ink ejected in a region with a color tone change within the color image formed on the print sheet, for each line and for each color of the ink ejected in the region, based on image data of the color image;a distribution acquisition unit configured to acquire a drop number distribution of the ink ejected on a line belonging to the region, for each line and for each ink color, based on the image data;a classification unit configured to classify ink colors to be superimposedly ejected in the region into a reference color exempted from an ...

PRINTING APPARATUS AND A PRINTING METHOD

A shift amount detecting chart is formed on web paper, and the shift amount detecting chart is photographed by an image pickup unit. An image processor calculates shift amounts smaller than a maximum shift amount in absolute values as correction values based on a variation trace of density peak positions from image data corresponding to the shift amount detecting chart photographed by the image pickup unit. A controller corrects printing timing with these correction values. Consequently, even when temporal variations occur to the shift amounts within a predetermined length, since the correction values are calculated based on the shift amounts smaller than the maximum shift amount in absolute values, an excessive correction can be prevented, thereby to improve printing quality. 1. A printing apparatus for printing on a printing medium , comprising:a transport device for transporting the printing medium in a transport direction;a plurality of print heads arranged separately in the transport direction for printing on the printing medium; [ a first line segment group of first line segments formed as arranged at constant intervals over a predetermined length in the transport direction, and having a long side in the primary scanning direction, by a reference print head serving as reference position in the transporting direction among the plurality of print heads, and', 'a second line segment group of second line segments formed by an objective print head disposed separately in the transport direction from the reference print head among the plurality of print heads, to have a long side in the primary scanning direction, and located in a middle in the transport direction between the first line segments, or at centers in the transport direction of the first line segments;, 'a middle chart printed in a middle portion of the printing medium in a primary scanning direction perpendicular to the transport direction, and having, 'one-side peripheral charts formed separately on one ...

RECORDING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM

There is a case where a reading unit cannot read an entire area of a recording medium in a scanning direction of a carriage, or a case where reading accuracy is low in the entire area. In such a case, a result of reading a test pattern for adjusting an ejection timing at each position cannot be obtained with high accuracy in a single reading operation. In order to solve the issue, a recording apparatus performs a reading operation a plurality of times and generates, based on results from the respective operations, an adjustment value for adjusting the ejection timing at each position in the scanning direction. 1. A recording apparatus comprising:a carriage configured to mount a recording unit and a reading unit thereon and to scan in a scanning direction intersecting with a predetermined direction, the recording unit including an ejection port array in which a plurality of ejection ports for ejection of ink is arranged in the predetermined direction;a conveyance member configured to convey a recording medium in a conveyance direction intersecting with the scanning direction;a control unit configured to control, using the recording unit, a recording operation for recording a test pattern including patches on an entire area of the recording medium in the scanning direction in order to control the ejection of ink at each position in the scanning direction, and to control, using the reading unit, a reading operation for reading the test pattern recorded on the recording medium while causing the carriage to scan; anda generation unit configured to generate an adjustment value for controlling the ejection of ink at each position in the scanning direction, based on a result of the reading in the reading operation,wherein the control unit executes a first reading operation for reading the test pattern, and a second reading operation for reading the test pattern in a state where a leading edge and a trailing edge of the recording medium on which the test pattern is recorded ...