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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4527. Отображено 100.
05-04-2012 дата публикации

Method of compensating for dead nozzles in stationary pagewidth printhead

Номер: US20120081435A1
Автор: Emma Rose Kerr, Gregory John McAvoy, Misty Bagnat, Ronan Padraig Sean O'reilly, Vincent Patrick Lawlor
Принадлежит: SILVERBROOK RESEARCH PTY LTD

A method of compensating for a dead nozzle in a stationary pagewidth printhead. The method includes the steps of: (i) identifying the dead nozzle; (ii) selecting a functioning nozzle in a same nozzle row as the dead nozzle; and firing ink droplets from the selected functioning nozzle at a primary dot position associated with the dead nozzle.

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Номер записи: 1
26-04-2012 дата публикации

Substrate media registration system and method in a printing system

Номер: US20120098879A1
Автор: Barry P. Mandel, Dusan G. Lysy, Injae Choi, Joannes N.M. de Jong, Lloyd A. Williams, Marina Tharayil
Принадлежит: Xerox Corp

Embodiments described herein include a substrate media registration system in a printing system. The registration system can include a deskewing system, a reflexive system, and a controller. The deskewing system is configured to deskew substrate media. The reflexive system is configured to detect the lateral position of the substrate media and at least one of a lead edge and a trail edge of the substrate media being transported in the process direction. The controller is operatively coupled to the reflexive system and is configured to control ejection of ink from a print head system in response to detecting the lateral position of the substrate media and at least one of the lead edge and the trail edge of the substrate media.

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Номер записи: 2
25-10-2012 дата публикации

Printing method and printer

Номер: US20120268543A1
Автор: Kunio Omura, Yasuhiro Yamagata
Принадлежит: Seiko Epson Corp

A printing method for printing bars in a barcode by forming dots on a print medium. The method includes dividing the bars of the barcode into a plurality of segments, forming the dots such that a portion of bars in a first segment are shifted a predetermined direction relative to a portion of bars in a second segment, and printing the barcode by forming dots in each of the plurality of segments. The predetermined direction can be towards a least significant digit of information represented by the barcode when the barcode is seen from the front. In one embodiment, the plurality of segments equals three. Other printing methods, as well as printers for performing the methods, are also provided.

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Номер записи: 3
01-11-2012 дата публикации

Duplex printer with internal hard drive

Номер: US20120274956A1
Автор: Kia Silverbrook, Paul Lapstun
Принадлежит: SILVERBROOK RESEARCH PTY LTD

A duplex color printer includes a pair of print engines mounted in an opposed manner to define a print media feed path therebetween, each print engine including a printhead and a transfer roller for receiving ejected ink from the printhead; a pair of print media trays mounted on either side of the body for respectively containing print media; a print media feed arrangement for feeding print media from one of the trays along the print media path into the other one of the trays; an internal hard drive for locally storing pre-rasterized documents; an interface for facilitating user selection of a locally stored pre-rasterized document for printing by the pair of print engines; and a cleaning station provided in each print engine. Each cleaning station includes a resilient wiper and an absorbent sponge. The resilient wiper is provided downstream of the absorbent sponge with respect to the transfer roller.

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Номер записи: 4
20-12-2012 дата публикации

Liquid discharge device, testing method, and medium with recorded program

Номер: US20120320120A1
Автор: Osamu Shinkawa, Toshiyuki Suzuki
Принадлежит: Seiko Epson Corp

There is provided a technique with which an abnormal discharge state in a discharge component can be determined on the basis of residual vibration. A printer includes a discharge component that discharges ink, a detector that detects residual vibration in the discharge component, and a tester that tests the discharge component on the basis of the change in the period of the residual vibration.

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Номер записи: 5
31-01-2013 дата публикации

Fluid discharging device

Номер: US20130025534A1
Автор: Takumi Nakano
Принадлежит: Unicharm Corp

A fluid discharging device that discharges fluid from a plurality of discharge openings towards a continuous sheet member which is continuously transported in a transporting direction. The fluid discharging device includes: a plurality of valves that correspond to the discharge openings and intermittently discharge the fluid from the discharge openings by opening and closing operations; and a controller that controls the opening and closing operations of each of the valves individually depending on a transportation amount of the continuous sheet member. The controller calculates a shared compensation value that is represented by a value indicating the transportation amount, based on a transport velocity of the continuous sheet member. The controller shifts an open-close timing of at least several valves of the plurality of valves from a previously-determined open-close timing, based on the shared compensation value.

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Номер записи: 6
18-04-2013 дата публикации

Element substrate, printhead and printing apparatus

Номер: US20130093808A1
Автор: Hideo Kanno, Nobuyuki Hirayama
Принадлежит: Canon Inc

An element substrate, comprising a first resistance element and second resistance element each of which includes a first terminal and a second terminal and is arranged in a predetermined direction, wherein the first terminals are connected to a first line for commonly supplying a current, and the second terminals are connected to a second line for commonly supplying a current, and a detection unit configured to detect a voltage of the first terminal of the first resistance element and a voltage of the first terminal of the second resistance element while power is supplied to the first resistance element and is not supplied to the second resistance element.

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Номер записи: 7
18-07-2013 дата публикации

Cartridge and printing material supply system

Номер: US20130182048A1
Автор: Hidetaka Kawata, Hidetoshi Kodama, Izumi Nozawa, Kazumasa Harada, Kazutoshi Matsuzaki, Satoshi Nakata, Tadahiro Mizutani
Принадлежит: Seiko Epson Corp

A printing material supply system includes a printing device and a cartridge. The printing device has a cartridge mounting structure. The cartridge is removably attached to the cartridge mounting structure. The cartridge mounting structure has a device-side terminal, a lever, a first device-side locking element and a second device-side locking element. The device-side terminal is configured to contact with a cartridge-side terminal. The first device-side locking element is configured as part of the lever. The second device-side locking element is configured to engage with a second locking surface of a second cartridge-side locking element. The cartridge-side terminal has a cartridge-side contact portion configured to be in contact with the device-side terminal. The cartridge-side contact portion is provided on the negative Z-axis side of the second locking surface.

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Номер записи: 8
01-08-2013 дата публикации

Driver circuit

Номер: US20130194833A1
Автор: Michael Penberth
Принадлежит: Global Inkjet Systems Ltd

A driver circuit ( 1 ) for driving a capacitive load ( 2 ) with a drive pulse having a rise time, a predetermined voltage period and a fall time. The driver circuit ( 1 ) includes an inductance ( 6 ), switches ( 10, 11, 12 ), and a transformer ( 8 ) having a primary side ( 8 ) and secondary side ( 9 ). The switches ( 10, 11, 12 ) are controlled by a controller ( 13 ) to charge the inductance ( 6 ) from a power supply ( 4 ), and, when the capacitive load ( 2 ) is to be driven, to enable a charge path from the inductance ( 6 ) to the capacitive load ( 2 ) during the rise time, to disable the charge path during the constant peak voltage period and to enable a discharge path via the primary side ( 8 ) of the transformer ( 7 ) during the fall time. As the capacitive load ( 2 ) discharges through the primary side ( 8 ) of the transformer ( 7 ), charge is induced on the secondary side ( 9 ) of the transformer ( 7 ) and is used to charge the inductance ( 6 ), thereby saving power and enabling a lower voltage power supply to be used.

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Номер записи: 9
08-08-2013 дата публикации

PATTERN FORMING METHOD AND PATTERN FORMING APPARATUS

Номер: US20130201240A1
Автор: KODAMA Jun
Принадлежит: FUJIFILM Corporation

A pattern forming method includes: a modification treatment step of, in accordance with a pattern to be formed on a pattern forming surface of a base body, applying a light beam having a width smaller than a diameter of each of dots to constitute the pattern, onto a treatment target region including at least outer edges on both sides in a width direction of a region where the pattern is to be formed in the pattern forming surface, thereby carrying out modification treatment on the treatment target region; and a droplet deposition step of ejecting and depositing droplets of a functional liquid by an inkjet method onto the region where the pattern is to be formed including the treatment target region where the modification treatment has been carried out. 1. A pattern forming method , comprising:a modification treatment step of, in accordance with a pattern to be formed on a pattern forming surface of a base body, applying a light beam having a width smaller than a diameter of each of dots to constitute the pattern, onto a treatment target region including at least outer edges on both sides in a width direction of a region where the pattern is to be formed in the pattern forming surface, thereby carrying out modification treatment on the treatment target region; anda droplet deposition step of ejecting and depositing droplets of a functional liquid by an inkjet method onto the region where the pattern is to be formed including the treatment target region where the modification treatment has been carried out.2. The pattern forming method as defined in claim 1 , wherein the base body is a substrate.3. The pattern forming method as defined in claim 2 , further comprising a temperature adjustment step of adjusting a temperature of the substrate at least one of: during the modification treatment step claim 2 , during the droplet deposition step claim 2 , and after the droplet deposition step.4. The pattern forming method as defined in claim 2 , further comprising claim 2 , ...

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Номер записи: 10
15-08-2013 дата публикации

PRINT ELEMENT SUBSTRATE, PRINTHEAD, AND PRINTING APPARATUS

Номер: US20130208037A1
Автор: Hirayama Nobuyuki
Принадлежит: CANON KABUSHIKI KAISHA

This invention provides a print element substrate having a plurality of printing elements. The print element substrate includes a detection circuit configured to detect substrate information of the print element substrate, a shift register configured to serially input print signals for performing driving control of the printing elements, serial-parallel convert the print signals, and parallelly output the print signals, a latch circuit configured to latch the print signals parallelly output from the shift register, and a driving circuit configured to drive the plurality of printing elements based on the print signals latched by the latch circuit. Detection signals based on the substrate information are parallelly input from the detection circuit to the shift register until serial input of next print signals starts after parallelly outputting the print signals from the shift register to the latch circuit. 1. A print element substrate including a plurality of printing elements , comprising:a detection circuit configured to detect substrate information of the print element substrate;a shift register configured to serially input print signals for performing driving control of the printing elements, serial-parallel convert the print signals, and parallelly output the print signals;a latch circuit configured to latch the print signals parallelly output from the shift register; anda driving circuit configured to drive the plurality of printing elements based on the print signals latched by the latch circuit,wherein detection signals based on the substrate information are parallelly input from the detection circuit to the shift register until serial input of next print signals starts after parallelly outputting the print signals from the shift register to the latch circuit.2. The substrate according to claim 1 , wherein after the detection signals are parallelly input to the shift register claim 1 , the shift register parallel-serial converts the input detection signals in ...

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Номер записи: 11
22-08-2013 дата публикации

PRINTING APPARATUS AND PRINTING METHOD

Номер: US20130215171A1
Автор: Kamoshida Shinichi, USUDA Hidenori, Yoshizawa Mitsuaki
Принадлежит: SEIKO EPSON CORPORATION

An apparatus for printing an image on a transparent medium based on a selected mode, the apparatus includes: a head that ejects ink droplets from nozzles, wherein when a first mode is selected, the head prints a first image on the transparent medium, prints a background image on the first image, and prints a second image which is different from the first image on the background image, and wherein when a second mode is selected, the head prints a second image on the transparent medium, prints a background image on the second image, and prints a first image on the background image. 18-. (canceled)9. A printing apparatus for printing an image on a medium , comprising:a first head unit;a second head unit that is located downstream from a transport direction from the first head unit;a controller that performs printing control that prints a first image, a second image which is different from the first image, and a background image, based on a selected mode; wherein,when a first mode is selected, the controller performs printing control that prints the first image to the medium using the first head unit, prints the background image to the first image using the second head unit, and prints the second image to the background image,and when a second mode is selected, the controller performs printing control that prints the second image to the medium using the first head unit, prints the background image to the second image using the second head unit, and prints the first image to the background image.10. The printing apparatus according to claim 9 , wherein in the first mode claim 9 , the controller performs printing control that prints a mirror image of the first image claim 9 , and prints an actual image of the second image claim 9 , andin the second mode, the controller performs printing control that prints a mirror image of the second image, and prints an actual image of the first image.11. The printing apparatus according to claim 9 , wherein the first image is an ...

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Номер записи: 12
19-09-2013 дата публикации

Driving device for capacitance type actuator and driving device for ink jet head

Номер: US20130241349A1
Автор: Noboru Nitta
Принадлежит: Toshiba TEC Corp

An actuator is sequentially charged with output voltage “E/2” of a voltage source and output voltage “E” of a voltage source. After the charging, “Q/2” of electric charge “Q” stored in the actuator is discharged on a path returning to the voltage source. Subsequent to the discharging, the remaining all electric charge “Q/2” stored in the actuator is discharged on a closed circuit.

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Номер записи: 13
19-09-2013 дата публикации

IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND RECORDING MEDIUM

Номер: US20130241987A1
Автор: Hatanaka Shinichi
Принадлежит:

A method for forming a color image on a recording medium includes detecting an ejection failure of a group of color ink recording elements for ejecting color ink drops, storing recording data originally expected to be processed by at least one color recording element exhibiting the ejection failure of the color recording elements of the group in a case where the ejection failure is detected in the detecting step, and compensating the ejection failure by recording an achromatic dot at a pixel position to which at least one color dot is originally expected to be recorded on the recording medium based on recording data stored in a data storage unit. 1. A method for forming a color image on a recording medium , the method being performed by an image forming apparatus having a head including a group of color ink recording elements for recording color dots composed of at least two colors of inks , a group of black ink recording elements for recording black dots composed of a black ink , a group of achromatic ink recording elements for recording achromatic dots composed of an achromatic ink having a lightness higher than a lightness of the black ink , and a data storage unit for storing data , the method comprising:detecting an ejection failure of the group of the color ink recording elements;storing recording data originally expected to be processed by at least one color recording element exhibiting the ejection failure of the color recording elements of the group in a case where the ejection failure is detected in the detecting step; andcompensating the ejection failure by recording the achromatic dot at a pixel position to which at least one color dot is originally expected to be recorded on the recording medium based on the recording data stored in the data storage unit.2. The method as claimed in claim 1 , whereina lightness value of the achromatic ink is a middle value between a maximum value and a minimum value of a lightness of a color gamut recorded in the ...

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Номер записи: 14
26-09-2013 дата публикации

Droplet positioning method, pattern forming method, droplet positioning program, droplet positioning device, and template pattern design method

Номер: US20130249981A1
Автор: SATOSHI Tanaka, Yasutada Nakagawa, Yoko Takekawa
Принадлежит: Toshiba Corp

In general, according to one embodiment, a method is disclosed for a droplet positioning method. The method can include determining an amount of the droplet required in each of a first region, determining a total amount of the droplet, determining a total number of the droplets, determining a provisional positioning of the droplets based on a template contact form, redividing the face for forming the base body pattern again using the second regions, and determining an evaluation value for each second region. If the distribution of the evaluation values is out of the target range, a repositioning at least any of the droplets, redividing the face for forming the base body pattern again using the second regions, and determining an evaluation value for each second region are repeated until distribution of the evaluation values is in the target range.

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Номер записи: 15
26-09-2013 дата публикации

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM

Номер: US20130249988A1
Автор: MIHARA Yasumasa
Принадлежит:

An image forming apparatus includes a print head configured to fire ink droplets; a subtank configured to store therein ink and supply the ink to the print head; a subatmospheric pressure generating unit configured to generate subatmospheric pressure in the subtank; a main tank configured to supply ink to the subtank; a detecting unit configured to detect an amount of ink in the main tank; and a control unit configured to control the subatmospheric pressure generating unit to generate subatmospheric pressure in the subtank and control the print head to fire ink droplets when the detecting unit detects that an amount of ink in the main tank is less than a predetermined first threshold, and control the print head to stop firing ink droplets when a time elapsed after the subatmospheric pressure is generated in the subtank exceeds a predetermined second threshold. 1. An image forming apparatus comprising:a print head configured to fire ink droplets;a subtank configured to store therein ink and supply the ink to the print head;a subatmospheric pressure generating unit configured to generate subatmospheric pressure in the subtank;a main tank configured to supply ink to the subtank;a detecting unit configured to detect an amount of ink in the main tank; and control the subatmospheric pressure generating unit to generate subatmospheric pressure in the subtank and control the print head to fire ink droplets when the detecting unit detects that an amount of ink in the main tank is less than a predetermined first threshold, and', 'control the print head to stop firing ink droplets when a time elapsed after the subatmospheric pressure is generated in the subtank exceeds a predetermined second threshold., 'a control unit configured to'}2. The image forming apparatus according to claim 1 , wherein claim 1 , when the detecting unit detects that an amount of ink in the main tank is less than the first threshold claim 1 , the control unit controls the subatmospheric pressure ...

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Номер записи: 16
03-10-2013 дата публикации

Method and Inkjet Printer for Acquiring Gap Information

Номер: US20130257935A1
Автор: ARAKANE Satoru
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A method is provided that is implemented on a control device connected with an inkjet printer, which includes an inkjet head having an ink discharging surface, a head scanning unit reciprocating the inkjet head relative to a recording sheet along a scanning direction parallel to the ink discharging surface, and a wave shape generating mechanism deforming the recording sheet in a predetermined wave shape that has tops of portions protruding in a first direction toward the ink discharging surface and bottoms of portions recessed in a second direction opposite to the first direction alternately arranged along the scanning direction, the method including acquiring gap information related to a gap between the ink discharging surface and each individual one of the tops and the bottoms on the recording sheet, and determining whether the gap information acquired for each individual one of the tops and the bottoms is abnormal. 1. A method configured to be implemented on a control device connected with an inkjet printer , the inkjet printer comprising:an inkjet head configured to discharge ink droplets from nozzles formed in an ink discharging surface thereof;a head scanning unit configured to reciprocate the inkjet head relative to a recording sheet along a scanning direction parallel to the ink discharging surface; anda wave shape generating mechanism configured to deform the recording sheet in a predetermined wave shape that has tops of portions protruding in a first direction toward the ink discharging surface and bottoms of portions recessed in a second direction opposite to the first direction, the tops and the bottoms alternately arranged along the scanning direction, the method comprising steps of:acquiring gap information related to a gap between the ink discharging surface and each individual one of the tops and the bottoms on the recording sheet; anddetermining whether the gap information acquired for each individual one of the tops and the bottoms on the recording ...

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Номер записи: 17
03-10-2013 дата публикации

INKJET RECORDING DEVICE

Номер: US20130257952A1
Автор: KOBAYASHI Isao
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An inkjet recording device includes: first and second pairs of rollers for conveying a sheet while nipping the sheet; and a recording head disposed between the first and seconds pairs of rollers. The recording head performs an image recording on the sheet by ejecting ink droplets onto the sheet when the sheet is stopped in an intermittent conveyance of the sheet. The recording head performs the image recording in accordance with a first image-recording data, before a trailing end of the sheet passes through the first pair of rollers that is disposed on an upstream side of the second pair of rollers. The recording head performs the image recording in accordance with a second image-recording data which is based on the first image-recording data and which has a higher image resolution than the first image-recording data, after the trailing end of the sheet passes through the first pair of rollers. 1. A inkjet recording device comprising:a first pair of rollers and a second pair of rollers that is disposed on an downstream side of said first pair of rollers in a conveyance direction, said first and second pairs of rollers being configured to convey a sheet in the conveyance direction that is along a conveyance path while nipping the sheet, such that a leading end of the conveyed sheet is positioned on a front side of a trailing end of the conveyed sheet in the conveyance direction;a recording head disposed between said first pair of rollers and said second pair of rollers in the conveyance direction, said recording head being configured to eject ink droplets toward the conveyance path through nozzles that are arranged in the conveyance direction; anda controller configured to cause said first and second pairs of rollers to perform an intermittent conveyance for alternately conveying and stopping the sheet, and to cause said recording head to perform an image recording on the sheet by ejecting the ink droplets onto the sheet when the sheet is being stopped in the ...

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Номер записи: 18
03-10-2013 дата публикации

Image Forming Apparatus

Номер: US20130257953A1
Автор: Kenichi Iesaki
Принадлежит: Brother Industries Ltd

An image forming apparatus includes a recording head which jets ink droplets, a head transporting mechanism which transports the recording head, and a control unit which controls the head transporting mechanism to reciprocate the recording head along a transporting path and controls the recording head to form an image on a sheet by jetting the ink droplets when the recording head passes over an image formation area within the transporting path. When the control unit controls the transporting mechanism to transport the recording head toward a turn-around point in the transporting path, the control unit decelerates the recording head in accordance with a first acceleration profile and a second acceleration profile which has a peak of deceleration higher than that of the first acceleration profile.

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Номер записи: 19
03-10-2013 дата публикации

IMAGE RECORDING APPARATUS

Номер: US20130257981A1
Автор: Ito Atsushi, Yoshikawa Takashi
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image recording apparatus includes an ink-jet head having a plurality of nozzles and configured to jet ink droplets from the nozzles; a carriage configured to carry the ink-jet head, and reciprocate in a predetermined scanning direction; a transport mechanism configured to transport the recording medium, on which the ink droplets jetted from the nozzles land, in a transport direction intersecting the scanning direction; and a control device configured to control the ink-jet head, the carriage and the transport mechanism to perform recording of the image. The nozzles include a plurality of first nozzles which are aligned at first interval with respect to the transport direction and from which first-type ink droplets are jetted, and a plurality of second nozzles which are aligned at second interval with respect to the transport direction and from which second-type ink droplets different from the first-type ink droplets are jetted. 1. An image recording apparatus configured to perform recording an image on a recording medium by jetting a plurality of types of ink droplets , the apparatus comprising:an ink-jet head having a plurality of nozzles and configured to jet the ink droplets from the nozzles;a carriage configured to carry the ink-jet head, and reciprocate in a predetermined scanning direction;a transport mechanism configured to transport the recording medium, on which the ink droplets jetted from the nozzles land, in a transport direction intersecting the scanning direction; anda control device configured to control the ink-jet head, the carriage and the transport mechanism to perform recording of the image,wherein the ink-jet head has, as the plurality of nozzles, a plurality of first nozzles which are aligned at first interval with respect to the transport direction and from which first-type ink droplets are jetted, and a plurality of second nozzles which are aligned at second interval with respect to the transport direction and from which second-type ink ...

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Номер записи: 20
10-10-2013 дата публикации

PRINTING DEVICE AND PRINTING METHOD

Номер: US20130265356A1
Автор: FUJISAWA Kazutoshi, Yoshizawa Mitsuaki
Принадлежит:

A printing device that forms a background by a first ink and images on the background by a second ink includes a head having first and second nozzle lines that eject, respectively, the first and second inks. The inks are ejected as the head moves, with respect to a medium, in a main scanning direction intersecting the first and second nozzle lines. A transport section transports the medium in a sub-scanning direction along the first and second nozzle lines. In an ejecting operation, the first and second inks are ejected in the relative movement in the main scanning direction and the relative transportation in the sub-scanning direction is performed. In the sub-scanning direction, first and second nozzle line used areas are set where the first and second inks, respectively, are ejected from the first and second nozzle lines. A nozzle unused area is defined therebetween. 1. A printing device which forms a background by a first ink and forms images on the background by a second ink , the printing device comprising:a head having a first nozzle line which ejects the first ink and a second nozzle line which ejects the second ink, and to eject the first and second inks while relatively moving in a main scanning direction intersecting the first nozzle line and the second nozzle line, with respect to a medium;a transport section relatively transporting the medium in a sub-scanning direction along the first nozzle line and the second nozzle line with respect to the head; anda controller controlling the head and the transport section such that an ejecting operation where the first ink and the second ink are ejected in the relative movement in the main scanning direction and the relative transportation in the sub-scanning direction are repeatedly performed,wherein, in the sub-scanning direction, a first nozzle line used area where the first ink is ejected from the first nozzle line and a second nozzle line used area where the second ink is ejected from the second nozzle line ...

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Номер записи: 21
24-10-2013 дата публикации

METHOD, INKJET PRINTER, AND SYSTEM FOR ACQUIRING DEVIATION VALUES OF INK LANDING POSITIONS

Номер: US20130278661A1
Автор: TERADA Kohei
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A method including acquiring a first deviation value of ink landing positions in each position in a first range from a first pattern printed over the first range of a recording sheet in a scanning direction at a first moving velocity of an inkjet head, acquiring variation information representing a variation in the scanning direction of the first deviation value, acquiring from the variation information a first representative value representing the first deviation value in the first range, acquiring a second deviation value from a second pattern printed over a second range included in the first range at a second moving velocity of the inkjet head, acquiring a second representative value representing a deviation value in the first range at the second moving velocity, based on the second deviation value and a difference between the first representative value and the first deviation value in the second range. 1. A method for acquiring a deviation value between an ink landing position of an ink droplet discharged from an inkjet head of an inkjet printer moving toward a first side along a scanning direction and an ink landing position of an ink droplet discharged from the inkjet head moving toward a second side opposite to the first side along the scanning direction , for each of different moving velocities of the inkjet head , the inkjet printer configured to perform printing on a recording sheet by discharging ink droplets from nozzles formed in an ink discharge surface of the inkjet head while reciprocating the inkjet head relative to the recording sheet along the scanning direction parallel to the ink discharge surface , the method comprising:a first pattern printing step of printing a first pattern over a first range of the recording sheet in the scanning direction, by discharging ink droplets from the nozzles while reciprocating the inkjet head at a first moving velocity along the scanning direction, the first pattern being a pattern for acquiring a first deviation ...

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Номер записи: 22
24-10-2013 дата публикации

REAL-TIME LINEFEED MEASUREMENT OF INKJET PRINTER

Номер: US20130278662A1
Автор: Ashida Jumpei
Принадлежит:

A method of halftoning of an image comprising a pseudo-noise pattern of dots, whereby vectors between each dot and the nearest neighbouring dot are orientated in a direction perpendicular to a line feed direction, and a density of the pattern of dots in a line feed direction is half of a density of the pattern of dots in a direction perpendicular to the line feed direction 1. A method of determining line feed error in an image forming apparatus for printing a reference image on a print medium , said image forming apparatus comprising a print head having a head sensor configured to sense information from images printed on the print medium , said method comprising the steps of:printing a first swath of a halftone image of the reference image on the print medium, said first swath having a dot pattern oriented in a direction perpendicular to a direction of linefeed of the image forming apparatus;repositioning the print head relative to the print medium by at least one line feed distance;determining a line feed error based upon information sensed by the head sensor from the printed first swath; and (i) at least partially overlaps the first swath; and', '(ii) has a dot pattern configured to at least partly neutralise, in an overlap area of the first swath and the second swath, the orientation of the first swath dot pattern in the halftone image., 'printing, using the determined line feed error, a second swath of the halftone image of the reference image on the print medium, wherein said second swath2. A method according to claim 1 , wherein the oriented dot pattern of the first swath exhibits inter-dot distances between dots in a linefeed direction that are longer than inter-dot distances between dots in a direction perpendicular to the linefeed direction.3. A method according to claim 2 , wherein the step of printing the first swath of the halftone image of the reference image comprises the steps of:partitioning, in the linefeed direction, a region of the reference image ...

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Номер записи: 23
24-10-2013 дата публикации

FLUID CIRCULATION

Номер: US20130278688A1
Автор: Bibl Andreas
Принадлежит:

Among other things, an apparatus for use in fluid jetting is described. The apparatus comprises a printhead including a flow path and a nozzle in communication with the flow path that has a first end and a second end. The apparatus also includes a first container fluidically coupled to the first end of the flow path, a second container fluidically coupled to the second end of the flow path, and a controller. The first container has a first controllable internal pressure and the second container has a second controllable internal pressure. The controller controls the first internal pressure and the second internal pressure to have a fluid flow between the first container and the second container through the flow path in the printhead according to a first mode and a second mode. In either mode, at least a portion of the fluid flowing along the flow path is delivered to the nozzle when the nozzle is jetting. The first mode has the first internal pressure higher than the second internal pressure and the second mode has the second internal pressure higher than the first internal pressure. The fluid flows from the first container to the second container according to the first mode and flows from the second container to the first container according to the second mode. 113-. (canceled)14. A method for use in fluid jetting , the method comprising:delivering a first portion of a fluid at a controlled flow rate along a first flow path from a first container to a second container, the first portion of the fluid in the first flow path passing by a second flow path in a printhead along a first direction, the second flow path fluidically connecting the first flow path to a nozzle such that a second portion of the fluid passing through the first flow path being is delivered through the second flow path to the nozzle when the nozzle is ejecting the fluid delivered from the first container; anddelivering a third portion of the fluid at a controlled flow rate along a third flow path ...

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Номер записи: 24
07-11-2013 дата публикации

PRINTING DEVICE

Номер: US20130293607A1
Автор: KAIBA Tadashi, Kobayashi Koji, MURAI Shuusei
Принадлежит:

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. 1. A printing device comprising:a turntable configured to turn a printing object which is to be mounted thereon so that a printed face thereof is directed upward;a printing head provided with a plurality of nozzles for spouting inks and configured to be able to move towards a center of rotation of the printing object from outside the rotation of the printed face of the printing object which is to be mounted on the turntable; 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, the controller performing 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 the nozzles to spout the inks therefrom.2. The printing device as claimed in claim 1 , wherein the controller is configured to control a printing operation in such a manner that pixel data of an image data intended to be printed on the printed face which pixel data is first represented by an orthogonal coordinate is converted into a polar coordinate by means of a rotary determinant to thereby perform printing of the converted pixel data onto a predetermined location of the printed face. 1. Field of the InventionThe present invention relates to a printing device and in particular, it relates to a printing device for printing desired designs and/or letters on a printed face of doughnut-like shape, such as a sidewall face of a vehicular tire.2. Description of the Related ArtThe color of many vehicular tires is generally black for the reason that carbon ...

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Номер записи: 25
14-11-2013 дата публикации

IMAGE PROCESSING APPARATUS, INKJET PRINTING APPARATUS, AND INKJET PRINTING METHOD

Номер: US20130300788A1
Автор: Konno Yuji, Ojiro Hinako, Yazawa Takeshi
Принадлежит: CANON KABUSHIKI KAISHA

In a color mode, the image quality improving liquid is set to the same rate of 20% for all input signal values. Meanwhile, in a monochrome mode, the image quality improving liquid is set to a rate of 30% in the highlight region, and the ink rate gradually decreases starting from the intermediate tones and proceeding towards the high-density region. Thus, the optimal printing method and usage rate for image quality improving liquid can be adjusted in accordance with the image quality characteristics of the color mode and the monochrome mode. As a result, it is possible to reduce color change in specular light while maintaining at least a certain level of image clarity in both modes, and thus favorably print both color images and monochrome images. 1. An image processing apparatus that generates print data for performing printing by using a print head ejecting to a print medium colored ink and image quality improving liquid , which includes two or more types of resins having different permeability into the print medium , to eject the colored ink and the print quality improving liquid to the print medium , said apparatus comprising:a converting unit configured to convert image data into use amount data of the colored ink and the print quality improving liquid; anda print data generating unit configured to generate print data for each of a plurality of print modes, based on the use amount data,wherein said converting unit performs conversions that differ in a use amount of the print quality improving liquid from one print mode to another, andsaid print data generating unit generates print data for executing a printing procedure which starts printing with the image quality improving liquid before completing printing with colored ink or a printing procedure which starts printing with the image quality improving liquid after completing printing with colored ink, for each of the plurality of print modes.2. The image processing apparatus as claimed in claim 1 , wherein said ...

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Номер записи: 26
21-11-2013 дата публикации

Liquid ejection head and ink jet printing apparatus

Номер: US20130307905A1
Автор: Ken Tsuchii, Masataka Sakurai
Принадлежит: Canon Inc

A power supply-heater wiring and a heater-driving circuit wiring for a heater located on the right side of a supply port can be laid out utilizing a beam portion configured to separate supply ports from each other. Furthermore, a plurality of supply ports are provided to supply ink to channels and pressure chambers and separated from one another by beam portions. Thus, an ejection structure such as an ejection opening can be located on both sides of each of the supply ports. Even if the ejection structures are relatively densely arranged, the heaters and the like can have necessary and sufficient sizes and locations without being restricted by the arrangement. A wiring connecting the heater to the power supply wiring or driving circuit is also laid out on the beam portion serving as a partition wall for the supply ports.

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Номер записи: 27
28-11-2013 дата публикации

PRINTING SYSTEM AND RELATED METHODS

Номер: US20130314465A1
Автор: Anderson Spencer C., Lebron Hector Jose
Принадлежит:

In one embodiment, a printing system includes a printhead module that has a printhead and a regulator chamber. The regulator chamber contains ink and a regulator air bag. The regulator air bag and the printhead are in fluid communication with the ink, and the printhead includes a plurality of ejection nozzles. The printing system includes a pressure source to inflate the air bag, thereby displacing an amount of ink sufficient to agitate menisci in the ejection nozzles without pushing ink out of the nozzles. 1. A printing system comprising:a printhead module that includes a printhead and a regulator chamber, the chamber containing ink and a regulator air bag, wherein the air bag and the printhead are in fluid communication with the ink and the printhead includes a plurality of ejection nozzles; anda pressure source to inflate the air bag thereby displacing an amount of ink sufficient to agitate menisci in the nozzles without pushing ink out of the nozzles.2. A system as in claim 1 , further comprising a controller for controlling air pressure pulses from the pressure source that inflate the air bag.3. A system as in claim 2 , further comprising service instructions executable on the controller to control pulse lengths claim 2 , dwell times and a number of pulses from the pressure source.4. A system as in claim 3 , wherein the service instructions are configured to determine the pulse lengths claim 3 , dwell times and number of pulses based on operating characteristics of the printhead module.5. A system as in claim 4 , wherein the characteristics are selected from the group consisting of ink rheology claim 4 , printhead architecture and operating temperature characteristics of the ink claim 4 , the print module architecture claim 4 , and an operating environment of the print module.6. A system as in claim 1 , wherein the pressure source comprises an ink pump configured to pump ink to the printhead module.7. A method of operating a printhead module comprising:forcing ...

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Номер записи: 28
05-12-2013 дата публикации

METHOD AND DEVICE FOR CONTROLLING INKJET PRINTING POSITION

Номер: US20130321503A1
Автор: LI ZHENHUA, LIU Zhihong
Принадлежит:

This application discloses a method for controlling jet printing positions, including: detecting a color code of an inputted paper by a color code sensor, and outputting a pulse signal when the color code is detected; configuring an expectation window where the pulse signal is expected to be generated; initiating jet printing after a predetermined delay period when the pulse signal is detected in the expectation window; and initiating jet printing after correction when no pulse signal is detected in the expectation window or the pulse signal is detected outside the expectation window. The method may improve the quality of jet printing. 1. A method for controlling positions of jet printing , comprising:detecting a color code of an inputted paper by a color code sensor, and outputting a pulse signal when the color code is detected;configuring an expectation window where the pulse signal is expected to be generated; andinitiating jet printing after a predetermined delay period when the pulse signal is detected in the expectation window or initiating jet printing after correction when no pulse signal is detected in the expectation window or the pulse signal is detected outside the expectation window.2. The method according to claim 1 , wherein the step of configuring an expectation window where the pulse signal is expected to be generated comprises:configuring a scale of an average spacing of color codes on a time axis as a center of the expectation window, and configuring positions which are separated by an error tolerance from the center as left and right boundaries of the expectation window.3. The method according to claim 2 , wherein the step of configuring an expectation window where the pulse signal is expected to be generated further comprises:before receiving a predetermined number of pulse signals, configuring in real time the average spacing of the color codes as t/n wherein t is a duration from detecting a first pulse signal to receiving a current pulse ...

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Номер записи: 29
05-12-2013 дата публикации

IMAGE RECORDING APPARATUS

Номер: US20130321504A1
Автор: Hasegawa Shin
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

Nozzles for ejecting color ink are aligned in the conveying direction of a recording sheet at a pitch corresponding to three times the pitch of nozzles ejecting black ink. A region in which an image is printed is divided into sixteen regions segmented into four parts in the scanning and conveying directions. Each region includes eight dots in the scanning direction and four dots in the conveying direction. With respect to regions which include one character, in one side attachment regions, black ink is ejected only when an ink jet head is moved to the right side. With respect to regions which include one character, in the other side attachment regions, black ink is ejected only when the ink jet head is moved to the left side. 1. An image recording apparatus , comprising:an ink jet head which includes a plurality of nozzles ejecting ink while moving in a main scanning direction;a conveyance section conveying a recording medium to which ink ejected from the plurality of nozzles is attached, in a sub-scanning direction perpendicular to the main scanning direction; anda control section controlling operation of the ink jet head and the conveyance section,{'b': 1', '2', '2', '1, 'wherein the plurality of nozzles include a plurality of first nozzles which are aligned at a first pitch P with respect to the sub-scanning direction and a plurality of second nozzles which are aligned at a second pitch P (P=nP, n is an integer more than 1) with respect to the sub-scanning direction and eject ink of a type different from ink ejected from the plurality of the first nozzles, the aligned first and second nozzles being arranged in parallel with respect to the main scanning direction,'}{'b': 1', '2', '1, 'wherein the control section performs control to repeatedly execute a unit recording operation for recording an image in a unit recording region of the recording medium extending in the main scanning direction by alternately executing one side recording operation for ejecting ink from ...

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Номер записи: 30
05-12-2013 дата публикации

Compensating for capacitance changes in piezoelectric printhead elements

Номер: US20130321507A1
Автор: Jack Lavier, Peter Mardilovich
Принадлежит: Hewlett Packard Development Co LP

In an embodiment, a method of compensating for capacitance change in a piezoelectric element of a fluid ejection device includes sensing a current driving a piezoelectric element, determining from the current that capacitance of the piezoelectric element has changed, and altering a rise time of the current driving the piezoelectric element to compensate for the changed capacitance.

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Номер записи: 31
12-12-2013 дата публикации

LASER PROCESS ALIGNMENT MEASURING METHOD

Номер: US20130328994A1
Автор: Marttila Tom
Принадлежит:

A laser process alignment measuring method applicable to a reel-to-reel manufacturing process including a laser process stage, wherein before at least one laser process stage, marks, patterns or surfaces () are made with printing ink on the base or carrier material of the web (), and on which the laser beam used can make a mark (), for example, by removing or changing the printing ink, whereby at the laser process stage, another mark is plotted with the laser beam on the mark et al. printed with printing ink, and the position of the mark et al. printed with printing ink () and the mark plotted with the laser () are read optically to measure the alignment of the printing ink stage and the laser process stage. 1. A laser process alignment measuring method applicable to a manufacturing process including a laser process stage , comprising:before at least one laser process stage, applying at least one marking, pattern or surface on a surface of a base or carrier material of a web with printing ink, on which a laser beam used on the marking, pattern or surface can make a marking, pattern or surface by removing or changing the printing ink;at the at least one laser process stage, plotting another marking, pattern or surface with the laser beam onto the at least one marking, pattern or surface printed with printing ink; andoptically reading the positions of the marking, pattern or surface printed with printing ink and the marking, pattern or surface plotted with the laser to measure alignment of the printing ink stage and the laser process stage.2. A method as claimed in claim 1 , further comprising making a negative marking claim 1 , pattern or surface with the laser onto the marking claim 1 , pattern or surface that had been made with printing ink by operating the laser for removing ink claim 1 , then scanning the marking claim 1 , pattern or surface made with printing ink and the laser marking claim 1 , pattern or surface claim 1 , and comparing the mutual positioning of ...

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Номер записи: 32
19-12-2013 дата публикации

INKJET RECORDING APPARATUS AND METHOD FOR CONTROLLING THE SAME

Номер: US20130335469A1
Автор: KACHI Yasuhiko, OKAMORI Kazuaki, SAITA Hirofumi, SANADA Kazuo
Принадлежит:

In an inkjet head which has nozzle rows having nozzles each of which ejects curable inks cured by imparted activation energy and which are arranged in a first direction at a pitch P, the nozzle rows being N (N≧5) nozzle rows of every color which eject, respectively, thick inks of four colors including cyan, magenta, yellow and black, and at least one light ink among light inks similar in color tone to the thick inks, the nozzles in each of the nozzle rows are arranged so as to be shifted by P/N from each other in a first direction, a nozzle of an ink with lowest cure sensitivity is arranged on the most upstream side in a direction of relative movement of a recording medium in the first direction, and further the nozzle of light ink is arranged in between the nozzles of two different thick inks. 1. An inkjet recording apparatus , comprising:an inkjet head which has nozzle rows having nozzles each of which ejects curable inks cured by imparted activation energy and which are arranged in a first direction at a pitch P, the nozzle rows being N (N≧5) nozzle rows of every color which eject, respectively, thick inks of four colors including cyan, magenta, yellow and black, and at least one light ink among light inks similar in color tone to the thick inks;an activation energy imparting device which imparts the activation energy to ink droplets ejected from the nozzles and deposited on a recording surface of a recording medium;a retention device which disposes and retains the inkjet head and the activation energy imparting device along a second direction orthogonal to the first direction;a scanning device which causes the retention device and the recording medium to relatively scan in the second direction;a movement device which causes the retention device and the recording medium to relatively move in the first direction in every scanning action by the scanning device; anda control device which forms an image on the recording surface of the recording medium while causing ...

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Номер записи: 33
26-12-2013 дата публикации

RECORDING METHOD USING INKJET RECORDING APPARATUS

Номер: US20130342596A1
Автор: Izawa Hideo, Yamazaki Yuuichi
Принадлежит:

A recording method using an inkjet recording apparatus, which can obtain a recorded material excellent in image quality and is excellent in productivity is provided. 1. A recording method using an inkjet recording apparatus which performs recording on a travelling material to be recorded by a line head , comprising:a first step of setting resolutions to design regions of image data having a plurality of different design regions;a second step of setting a travelling speed of the material to be recorded so as to correspond to each of the resolutions; anda third step of setting acceleration/deceleration of the material to be recorded in order to connect different travelling speeds of the travelling speed, whereinthe travelling speed of the material to be recorded is changed during continuous recording by the line head.2. The recording method using an inkjet recording apparatus according to claim 1 , whereinthe travelling speed of the material to be recorded is changed in a multiple-stage fashion,when the resolution is high, the travelling speed of the material to be recorded is set slow, andwhen the resolution is low, the travelling speed of the material to be recorded is set fast.3. The recording method using an inkjet recording apparatus according to claim 2 , whereinat a deceleration time of the material to be recorded, recording is performed at a resolution of the material to be recorded just before decelerated, andat an acceleration time of the material to be recorded, recording is performed at a resolution of the material to be recorded just after accelerated. The present invention relates to a recording method using an inkjet recording apparatus, and in particular to a recording method using an inkjet recording apparatus, which can obtain a recorded material with an excellent image quality and is also excellent in productivity.In an inkjet recording system, generally, expressive power of an image varies according to resolution.Here, the term “resolution” means ...

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Номер записи: 34
13-02-2014 дата публикации

Inkjet head and method of manufacturing inkjet head

Номер: US20140043399A1
Автор: Hideo Watanabe
Принадлежит: KONICA MINOLTA INC

An inkjet head including: a head chip having; driving walls composed of piezoelectric element, wherein shear deformation is caused by applying voltage so as to jet ink, channels arranged alongside the driving walls alternatively to contain ink, outlet and inlet ports respectively provided on a front and rear surface of the head chip for each channel, driving electrodes formed on surfaces of the driving walls to apply voltage to the driving walls, and connection electrodes formed on the rear surface of the head chip to connect the driving electrodes electrically; a wiring substrate, wherein wiring electrodes are formed to apply voltage to the driving electrode through the connection electrode, bonded on the rear surface of the head chip to protrude from the head chip in a direction perpendicular to a direction of a channel array so that all the channels are exposed at the rear surface of the head chip.

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Номер записи: 35
27-03-2014 дата публикации

Image Forming Apparatus

Номер: US20140085371A1
Автор: Mamoru Saitou, Ryo TERAKADO, Takashi Ebisawa, Toshihide MAESAKA
Принадлежит: Riso Kagaku Corp

An image forming apparatus includes a controller configured to adjust ink ejection amounts from nozzles in a downstream nozzle array on a basis of a bypassing air flow degree. The bypassing air flow degree is calculated based on an ejection density of ink ejected from nozzles in an upstream nozzle array on a recording medium and indicates a generation degree of a bypassing air flow generated when a transfer air flow generated by transfer of the recording medium bypasses a self-generated air flow generated by ink ejected from the nozzles in the upstream nozzle array. The downstream nozzle array is a nozzle array located downstream in a transfer direction among a plurality of nozzle arrays. The upstream nozzle array is a nozzle array located upstream in the transfer direction among the plurality of nozzle arrays.

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Номер записи: 36
27-03-2014 дата публикации

LIQUID DROPLET EJECTING HEAD AND PRINTING APPARATUS

Номер: US20140085384A1
Автор: MIYAZAWA Ikuya
Принадлежит: SEIKO EPSON CORPORATION

A liquid droplet ejecting head includes: a base substrate that is formed as a plate-like body and that has a concave portion, which is formed to be open toward an upper surface of the plate-like body, and a wiring pattern which is provided inside the concave portion and formed of a conductive material; and an IC package that is fixed to airtightly seal the inside of the concave portion on the upper surface side and is electrically connected to the wiring pattern. 1. A liquid droplet ejecting head comprising:a base substrate that is formed as a plate-like body and that has a concave portion, which is formed to be open toward one surface of the plate-like body, and a wiring pattern which is provided inside the concave portion and formed of a conductive material; andan IC package that is electrically connected to the wiring pattern,wherein the IC package seals and fixes the concave portion on the one surface side.2. The liquid droplet ejecting head according to claim 1 , wherein the IC package is formed in a chip shape claim 1 , and has a size capable of covering the concave portion in plan view.3. The liquid droplet ejecting head according to claim 2 ,wherein the IC package is fixed onto the base substrate through an adhesive, andwherein a gap between one surface of the base substrate and one surface of the IC package is filled with the adhesive.41. The liquid droplet ejecting head according to claim claim 2 , wherein the concave portion is formed in a shape of a channel claim 2 , and has a bottom portion and a pair of side wall portions which stand on the bottom portion so as to be opposed to each other in a width direction of the channel.5. The liquid droplet ejecting head according to claim 4 , wherein the side wall portions are inclined such that a separation distance between the side wall portions gradually increases toward the one surface side.6. The liquid droplet ejecting head according to claim 5 , wherein the wiring pattern is formed of a plurality of linear ...

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Номер записи: 37
03-04-2014 дата публикации

IMAGE RECORDING APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING IMAGE PROCESSING PROGRAM

Номер: US20140092157A1
Автор: Yoshida Yasunari
Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An image recording apparatus, including: a recording head to eject a first liquid and a second liquid: and a controller to selectively set one of a first mode and a second mode and to obtain second-liquid ejection amounts for pixels other than specific pixels by applying a first rule and for the specific pixels by applying a second rule where the second mode is set, wherein the second rule is a rule by which a ratio of a usage amount of the second liquid to a usage amount of the first liquid in an instance in which the second rule is applied to the specific pixels in the second mode is made closer to the ratio in an instance in which the first mode is set, as compared with the ratio in an instance in which the first rule is applied to the specific pixels in the second mode. 1. An image recording apparatus , comprising:a recording head configured to eject, to a recording medium, a first liquid by which an image is recorded on the recording medium and a second liquid that acts on the first liquid so as to improve characteristics of the first liquid; anda controller configured to control the recording head, mode setting processing in which the controller selectively sets one of a plurality of modes including a first mode in which an image to be recorded based on image data is identified as a recording image which is an image to be recorded and a second mode in which an image having a density different from a density of the image to be recorded based on the image data in the first mode is identified as the recording image, the image data containing density values each for a corresponding one of a plurality of pixels arranged in matrix;', 'first-data generating processing in which the controller generates first-liquid ejection data indicating an ejection amount of the first liquid for each of the plurality of pixels of the recording image;', 'second-data generating processing in which the controller generates second-liquid ejection data indicating an ejection amount of ...

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Номер записи: 38
10-04-2014 дата публикации

Inkjet recording apparatus and recording position adjustment method

Номер: US20140098151A1
Автор: Naoki Uchida
Принадлежит: Canon Inc

The present invention preferentially sets an adjustment value of a nozzle array having a deviation amount in a conveyance direction which exceeds a threshold amount, and sets the adjustment value in such a manner that the total of deviation amounts of a plurality of nozzle arrays can be minimized.

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Номер записи: 39
07-01-2021 дата публикации

INK JET PRINTING SYSTEM

Номер: US20210001625A1
Автор: Park Taehyun
Принадлежит: SEMES CO., LTD.

The ink jet printing system may have a printing section and a testing section. The ink jet printing system may include a first alignment mark disposed in the printing section along a first direction, a second alignment mark disposed in the testing section along a second direction perpendicular to the first direction, an ink jet head for providing chemical liquid onto a substrate, a first identification member proximate to the ink jet head, the first identification member identifying the first alignment mark and the second alignment mark, a gantry for moving the ink jet head between the printing section and the testing section, a second identification member proximate to the gantry, the second identification member identifying discharging points of the chemical liquid in the testing section, and a control member for correcting discharging points of the chemical liquid discharged from the ink jet head onto the substrate in the printing section based on a result that the second identification member identifies the discharging points of the chemical liquid in the testing section. The testing section may be arranged in substantially parallel with the printing section along the first direction. 1. An ink jet printing system including a printing section and a testing section , which comprises:a first alignment mark disposed in the printing section along a first direction;a second alignment mark disposed in the testing section along a second direction perpendicular to the first direction;an ink jet head for providing chemical liquid onto a substrate;a first identification member proximate to the ink jet head, the first identification member identifying the first alignment mark and the second alignment mark;a gantry for moving the ink jet head between the printing section and the testing section;a second identification member proximate to the gantry, the second identification member identifying discharging points of the chemical liquid in the testing section; anda control ...

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Номер записи: 40
07-01-2021 дата публикации

LIQUID DROP DISCHARGE APPARATUS

Номер: US20210001626A1
Автор: JANG Yoon Ok, KANG Han Lim, LEE Hyun Min, Lee Jun Seok
Принадлежит: SEMES CO., LTD.

A liquid drop discharge apparatus is proposed. The liquid drop discharge apparatus includes: an inkjet head discharging ink to each of pixels of a substrate; a laser emitter coupled to the inkjet head, and emitting an aiming laser beam by which a discharged position of a liquid drop from the inkjet head to each of the pixels is aimed; a camera capturing an emitted position of the aiming laser beam on the substrate; and a position alignment unit aligning a position of the inkjet head on the basis of image data obtained from the shooting unit. 1. A liquid drop discharge apparatus comprising:an inkjet head discharging ink to each of pixels of a substrate;a laser emitter coupled to the inkjet head and configured to emit an aiming laser beam to a target position on the substrate, wherein the target position corresponds to a discharged position of a liquid drop from the inkjet head to form a corresponding pixel of the pixels;a camera capturing an emitted position on the substrate where the aiming laser beam reaches; anda position alignment unit aligning a position of the inkjet head on the basis of image data obtained from the camera.2. The apparatus of claim 1 ,wherein the laser emitter comprises:a laser generating a laser beam; anda diffraction member located to be adjacent to the laser, and configured to diffract the laser beam in multiple directions to generate the aiming laser beam.3. The apparatus of claim 1 ,wherein the laser emitter is coupled to a front side of the inkjet head relative to a direction in which the inkjet head is moved from an initial position thereof.4. The apparatus of claim 1 ,wherein the position alignment unit comprises:an image processing part detecting the emitted position of the aiming laser beam from the image data;a distance calculator calculating a relative distance difference between the emitted position of the aiming laser beam and the target position; anda drive part changing the position and an angle of the inkjet head by the ...

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Номер записи: 41
07-01-2021 дата публикации

Liquid ejecting head and liquid ejecting system

Номер: US20210001630A1
Автор: Akinori TANIUCHI, Akira Miyagishi, Shotaro Tamai, Toshiro Murayama
Принадлежит: Seiko Epson Corp

A liquid ejecting head includes a first flow path extending in a first axial direction between a supply port and a discharge port, and a nozzle that is provided to branch from the first flow path and that discharges a liquid along a second axial direction orthogonal to the first axial direction. The nozzle includes a first nozzle portion in which a first opening for discharging the liquid is formed and a second nozzle portion in which a second opening that is a coupling port with the first flow path is formed, and a diameter r2 of the second opening in the first axial direction is larger than a diameter r1 of the first opening in the first axial direction.

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Номер записи: 42
07-01-2021 дата публикации

IMAGE FORMING APPARATUS AND METHOD, ABNORMAL NOZZLE DETECTION METHOD, AND PRINTED MATTER MANUFACTURING METHOD

Номер: US20210001638A1
Автор: Shibata Hiroyuki
Принадлежит: FUJIFILM Corporation

Provided is an image forming apparatus and a method, an abnormal nozzle detection method, and a printed matter manufacturing method that can suppress the consumption of an extra medium and can efficiently specify an abnormal nozzle. The image forming apparatus () includes a print head () that has a plurality of nozzles, an association unit () that associates the nozzle with a partial region in a user image, a first correction unit that performs a first correction assuming that the associated nozzle is abnormal in at least one of the partial regions, a streak detection unit () that detects streak information from a print result of the user image including the partial region subjected to the first correction, and a nozzle state estimation unit () that estimates a state of the nozzle on the basis of the streak information of two or more partial regions in a single user image. 1. An image forming apparatus comprising:a print head that has a plurality of nozzles for ejecting a liquid droplet;an association unit that associates the nozzle with a partial region in a user image designated as an image of a target whose image is formed by using the print head;a first correction unit that performs a first correction assuming that the associated nozzle is abnormal in at least one of the partial regions;a printing control unit that causes the print head to print the user image including the partial region subjected to the first correction;a streak detection unit that detects streak information from a print result of the user image including the partial region subjected to the first correction; anda nozzle state estimation unit that estimates a state of the nozzle on the basis of the streak information of two or more partial regions in a single user image printed by using the print head.2. The image forming apparatus according to claim 1 , further comprising:a second correction unit that performs a second correction that suppresses a visibility of streaks due to an abnormal ...

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Номер записи: 43
05-01-2017 дата публикации

EVALUATING PRINT NOZZLE CONDITION

Номер: US20170001433A1
Автор: ANDERSON Daryl E., Fricke Peter James, Gardner James Michael, Martin Eric T.
Принадлежит: Hewlett-Packard Development Company, L.P.

Systems and methods for evaluating the condition of a print nozzle are described. In one example, impedances across the print nozzle are measured. Subsequently, first test result and second test result are determined and registered at a first predetermined time instant and at a second predetermined time instant, respectively. The first test result and the second test result are obtained based on the measured impedances. Based on the first test result and the second test result, the condition of the print nozzle, is determined. 1. A method for evaluating the condition of a print nozzle , the method comprising:measuring impedances across the print nozzle;registering onto a print the circuitry of the print nozzle, at least at a first predetermined time instant and at a second predetermined time instant, a first test result and a second test result, respectively, obtained based on the measured impedances, wherein each of the first predetermined time instant and the second predetermined time instant are measured with respect to a firing pulse;evaluating the condition of the print nozzle based on the first test result and the second test result.2. The method as claimed in claim 1 , wherein the first test result is obtained by comparing a voltage corresponding to the impedance measured at the first predetermined time instant with a threshold voltage.3. The method as claimed in claim 2 , wherein the second test result is obtained by comparing a voltage corresponding to the impedance measured at the second predetermined time instant with the threshold voltage4. The method as claimed in claim 1 , wherein the first test result and the second test result are in the form of a logical output.5. The method as claimed in claim 1 , wherein:the first test result is indicative of whether a drive bubble persisted at the first predetermined time instant; andthe second test result is indicative of whether the drive bubble collapsed and ink within an ink chamber associated with the print ...

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Номер записи: 44
05-01-2017 дата публикации

LIQUID DISCHARGE APPARATUS AND METHOD OF CONTROLLING THE SAME

Номер: US20170001434A1
Автор: Makita Shushi, YAMASHITA Noriaki
Принадлежит:

A liquid discharge apparatus includes a filter configured to filter liquid to be discharged from a nozzle, a vibration detection mechanism configured to detect vibration of ink in an ink flow path generated by the driving of a piezoelectric element as an actuator; and a calculation circuit configured to obtain a detection value obtained by the vibration detection mechanism and perform calculation by using the detection value, wherein the vibration detection mechanism detects vibration of n (1 Подробнее

Номер записи: 45
07-01-2016 дата публикации

PRINTING SYSTEM

Номер: US20160001548A1
Автор: Conesa Eduardo Amela, Fernandez Jaime, Humet Jacint, Serra Marc
Принадлежит:

A printing method and system include a printhead configured to eject a fixer fluid. A controller is operatively connected to the printhead and configured to control the printhead so as to apply the fixer fluid to a print area in a pattern to form cells having a predetermined area without the fixer fluid. 1. A printing method , comprising:applying, with a first printhead, a fixer fluid to a print area to form cells having a predetermined area without the fixer fluid; andapplying, with a second printhead, ink to the print areathe fixer fluid to contain ink within the predetermined area of a respective cell.2. The printing method of claim 1 , comprising:applying the fixer fluid as a pretreatment fluid before applying the ink.3. The printing method of claim 1 , comprising:applying the fixer fluid in a periodic grid.4. The printing method of claim 1 , comprising:applying the fixer fluid in a non-periodic grid.5. The printing method of claim 4 , wherein:the non-periodic grid is a Voronoi grid.6. The printing method of claim 1 , wherein:the cells have a diameter of about 0.5 mm.7. The printing method of claim 1 , wherein:applying ink to the print area includes applying color ink.814-. (canceled)15. A non-transitory machine readable storage medium storing instructions that when executed cause a processor to implement a method claim 1 , comprising:applying, with a first printhead, a fixer fluid to a print area to form cells having a predetermined area without the fixer fluid; andapplying, with a second printhead, ink to the print area,the fixer fluid containing ink within the predetermined area of a respective cell.16. The non-transitory machine readable storage medium of claim 15 , the method further comprising:applying the ink after applying the fixer fluid.17. The non-transitory machine readable storage medium of claim 15 , the method further comprising:applying the fixer fluid in a periodic grid.18. The non-transitory machine readable storage medium of claim 15 , the ...

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Номер записи: 46
04-01-2018 дата публикации

INKJET IMAGE-FORMING METHOD

Номер: US20180001620A1
Автор: KONDO Ai
Принадлежит:

A line-head-type inkjet image-forming method includes ejecting a gel ink to a recording medium at a first coverage rate that is less than 100% and set to allow dots of newly ejected gel ink to unite with dots of the gel ink already landed on the recording medium. The gel ink contains a specific amount of a polymer dispersant based on the amount of the colorant and has a specific contact angle on the recording medium. The gel ink is ejected from nozzles so as to form dots with a diameter slightly larger according to the resolution of the image to be formed. 1. An inkjet image-forming method comprising:forming an image by ejecting a gel ink at a first coverage rate from a plurality of nozzles arranged along a first direction to a recording medium moving in a second direction crossing the first direction,the first coverage rate being less than 100% and set to allow dots of newly ejected gel ink to unite with dots of the gel ink already landed on the recording medium,the gel ink containing a crystalline gelling agent, a colorant, and a polymer dispersant,a content of the polymer dispersant in the gel ink being from more than 20% by mass to 70% by mass based on a weight of the colorant,the gel ink having a contact angle of 15 to 30° on the recording medium, {'br': None, 'i': D', '/R, 'sup': '4', '2.7≦/(2.54×10)≦3.5'}, 'the inkjet image-forming method satisfying the following formulawherein R is a resolution (dpi) of the image to be formed, and D is a diameter (μm) of ink droplet dots landed on the recording medium.2. The inkjet image-forming method according to claim 1 , further comprising the steps of:identifying a defective nozzle suffering ejection failure from the plurality of nozzles;stopping ejection of the gel ink from the defective nozzle; andejecting the gel ink to the recording medium after controlling the coverage rate for one or both of nozzles adjacent to the defective nozzle to a second coverage rate greater than the first coverage rate.3. The inkjet image- ...

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Номер записи: 47
04-01-2018 дата публикации

DETECTION SEGMENT AS WELL AS DEVICE AND METHOD FOR PRINTING CONTAINERS

Номер: US20180001624A1
Автор: Koers Sascha, Nick Michael, Preckel Katrin
Принадлежит:

A detection segment for use in a device for printing on containers includes an image-capturing device that optically detects a container feature and a sensor interface that interfaces with a sensor that uses a code provided on a retaining-and-centering unit that holds a container to determine a rotational position of that container. A computer connects to the image-capturing device and the sensor unit. The computer determines an alignment variable based on the code and the detected container feature and then forwards this alignment variable to a printer segment on a printer module. 118-. (canceled)19. An apparatus comprising a detection segment for use in a device for printing on containers , said device comprising a printing module , said detection segment comprising an image-capturing device , a sensor interface , a computer , a communication interface , said detection segment configured for holding and releasing a retaining-and-centering unit that rotates a container about a vertical axis thereof when said container is retained at said retaining-and-centering unit , wherein said image-capturing device is configured to optically detect a container feature of a container , wherein said sensor interface interfaces with a sensor that uses a code provided on said retaining-and-centering unit to determine a rotational position of said container when said container is retained by said retaining-and-centering unit , wherein said computer connects to said image-capturing device and said sensor unit , wherein said computer is configured for determining an alignment variable based on said code and said detected container feature , and wherein said communication interface is configured to forward said alignment variable to a printer segment on said printer module.20. The apparatus of claim 19 , further comprising a rotor claim 19 , wherein said detection segment is provided on said rotor.21. The apparatus of claim 19 , wherein said detection segment is a detection module ...

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Номер записи: 48
04-01-2018 дата публикации

PRINTING APPARATUS, CONTROL METHOD FOR PRINTING APPARATUS, AND PRINTING METHOD

Номер: US20180001625A1
Автор: Kaneko Satoshi, OHARA Eiichi, ONO Nobuyuki, TAKEUCHI Akira
Принадлежит:

A three-dimensional printer including a printer head, a target object holding device that rotatably holds the printing target object, a three-dimensional movement supporting device that movably supports the target object holding device, and a control device, where the control device carries out a process of setting a printing target point, which is a position where the ink is to be discharged from a nozzle, an ideal landing point and an actual landing point are calculated in the relevant process, and when positions are shifted between the ideal landing point and the actual landing point, correction corresponding to a shift amount of the position is carried out to set a printing target point. 1. A printing apparatus that carries out printing on a surface of a printing target object having a three-dimensional shape based on a print image , which is an image to be printed , the printing apparatus comprisinga printer head comprising a nozzle surface being a surface formed with a nozzle row where a plurality of nozzles, each of which discharges ink, are lined in a predetermined nozzle row direction;a target object holding device that holds the printing target object, the target object holding device rotatably holding the printing target object with a rotating axis set in a three-dimensional space as a center;a three-dimensional movement supporting device that movably supports the target object holding device in the three-dimensional space;a head movement supporting device that movably supports the printer head so that the nozzle surface passes a position facing the surface of the printing target object held by the target object holding device;a relative movement control device that carries out a control of relatively moving the printer head with respect to the printing target object held by the target object holding device by controlling an operation of the three-dimensional movement supporting device and the head movement supporting device; anda print control device ...

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Номер записи: 49
02-01-2020 дата публикации

Image Recording Apparatus

Номер: US20200001598A1
Автор: ARAKANE Satoru, ITO Tsuyoshi, KAWAMOTO Kenji
Принадлежит:

An image recording apparatus includes a carriage which reciprocatingly moves in a scanning direction, a head mounted on the carriage to jet liquid, a speed sensor which acquires speed data related to speed of the carriage, and a controller configured to: record an image by executing a recording pass in which the liquid is jetted from the head toward an recording medium while moving the carriage once toward one side in the scanning direction; determine whether the speed indicated by the speed data is lower than a threshold value during the recording pass; and based on determination that the speed indicated by the speed data is lower than the threshold value at a first point of time in the recording pass, determine whether to suspend or continue the recording pass by referring to the speed data acquired after a predetermined time since the first point of time. 1. An image recording apparatus comprising:a carriage configured to reciprocatingly move in a scanning direction;a head mounted on the carriage and configured to jet liquid;a speed sensor configured to acquire speed data related to speed of the carriage; anda controller configured to:record an image on a recording medium by carrying out a recording pass in which the liquid is jetted from the head toward the recording medium while moving the carriage once toward one side in the scanning direction;determine whether the speed indicated by the speed data acquired by the speed sensor is lower than a predetermined threshold value when moving the carriage in the recording pass; andbased on determination at a first point of time in the recording pass that the speed indicated by the speed data is lower than the threshold value, determine whether to suspend or continue the recording pass while moving the carriage, by referring to the speed data acquired by the speed sensor at a second point of time in the recording pass which is after a predetermined time since the first point of time.2. The image recording apparatus ...

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Номер записи: 50
02-01-2020 дата публикации

Masked Quartz Crystal Microbalance for Calibrating and Monitoring Inkjet Dispensers

Номер: US20200001599A1
Автор: Antoine Dellinger, Matthew C. Traub, Roger R. Wenzel, Steven C. Shackleton, Whitney Longsine
Принадлежит: Canon Inc

A fluid dispenser calibration system includes a fluid dispenser having a plurality of nozzles, a balance having a balance surface, and a mask positioned between the fluid dispenser and the balance surface. A nozzle pitch is a distance between two adjacent nozzles. The balance measures mass of fluid dispensed from a single nozzle and measures a change in mass on the balance surface. The balance surface has a linear dimension that is greater than the nozzle pitch. The mask includes an aperture and a catch region. The aperture allows fluid dispensed from the single nozzle to impact the balance surface. The catch region catches fluid dispensed from remaining nozzles in the plurality of nozzles.

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Номер записи: 51
04-01-2018 дата публикации

SYSTEM FOR PRINTING ON THREE-DIMENSIONAL (3D) OBJECTS

Номер: US20180001662A1
Автор: Buchar Wayne A., Elliot Jack G., Leo Michael F., Spence James J.
Принадлежит:

A printing system facilitates the printing of articles of manufacture. The system includes an array of printheads, a support member positioned to be parallel to a plane formed by the array of printheads, a member movably mounted to the support member, an actuator operatively connected to the movably mounted member, an object holder configured to mount to the movably mounted member, and a controller operatively connected to the plurality of printheads and the actuator. The controller is configured to operate the actuator to move the object holder past the array of printheads and to operate the plurality of printheads to eject marking material onto objects held by the object holder as the object holder passes the array of printheads. The support member and printhead array are oriented vertically to enable the printing system to be installed in a vertical cabinet that provides a small footprint in a non-production environment. 1. A printing system comprising:a plurality of printheads arranged in a two-dimensional array, each printhead being configured to eject marking material;a support member positioned to be in a plane parallel to a plane formed by the two-dimensional array of printheads;a member mounted about the support member, the member being configured to move along the support member;an actuator operatively connected to the member to enable the actuator to move the member along the support member;an object holder configured to mount to the member selectively to enable a surface of the object holder configured to hold at least one object to be parallel to the plane formed by the two-dimensional array of printheads as the member moves along the support member; anda controller operatively connected to the plurality of printheads and the actuator, the controller being configured to operate the actuator to move the surface of the object holder past the two-dimensional array of printheads in the plane parallel to the plane formed by the two-dimensional array of ...

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Номер записи: 52
03-01-2019 дата публикации

RECORDING APPARATUS AND RECORDING METHOD

Номер: US20190001669A1
Автор: Edamura Tetsuya, Hayashi Masashi, Kawatoko Norihiro, Komamiya Eiji, Muro Kentaro
Принадлежит:

An apparatus includes a recording head including a first discharge port array and a second discharge port array, the first and second discharge port arrays being shifted and arranged in a first direction so that part of the discharge ports arranged at an end portion of the first discharge port array in the first direction and part of the discharge ports arranged at an end potion of the second discharge port array in the first direction are located at the same positions in the first direction. The plurality of discharge ports in each of the first and second discharge port arrays is obliquely arranged at a predetermined tilt with respect to the first direction. Discharge timing is adjusted based on the tilt of the discharge port arrays. 1. An apparatus comprising:a recording head including a first discharge port array and a second discharge port array each including a plurality of recording elements configured to generate energy for discharging ink and a plurality of discharge ports provided to correspond to the recording elements, the first and second discharge port arrays being shifted and arranged in a first direction so that part of the discharge ports arranged at an end portion of the first discharge port array in the first direction and part of the discharge ports arranged at an end portion of the second discharge port array in the first direction are located at same positions in the first direction;a moving unit configured to execute relative movement between the recording head and a recording medium in a second direction crossing the first direction; anda control unit configured to control timing of discharge from the second discharge port array,wherein the plurality of discharge ports, in each of the first and second discharge port arrays, is obliquely arranged at a predetermined tilt with respect to the first direction, andwherein the control unit is configured to adjust the timing of discharge from the second discharge port array by a first adjustment ...

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Номер записи: 53
13-01-2022 дата публикации

INKJET RECORDING APPARATUS

Номер: US20220009226A1
Автор: KUROKAWA Yuichiro, MIKASHIMA Katsuo
Принадлежит: KYOCERA Document Solutions Inc.

An inkjet recording apparatus includes a recording head having a plurality of nozzles for ejecting ink, an endless conveying belt conveying a recording medium and having a plurality of openings through which ink is passed when the recording head performs flushing, a reading sensor for reading, in a first reading mode, information on openings in the conveying belt and, in a second reading mode, information on the recording medium on the conveying belt, an ejection control portion for controlling ejection of the ink from the recording head based on at least one of the information on the openings and the information on the recording medium, and a reading mode switching control portion for switching the reading mode of the reading sensor between the first and second reading modes. 1. An inkjet recording apparatus , comprising:a recording head having a plurality of nozzles from which ink is ejected;a conveying belt that conveys a recording medium, the conveying belt being endless and having a plurality of openings through which the ink is passed when the recording head performs flushing in which the ink is ejected from the nozzles with timing different from timing of ink ejection contributing to image formation;a reading sensor that, in a first reading mode, reads information on the openings in the conveying belt and that, in a second reading mode, reads information on the recording medium on the conveying belt;an ejection control portion that controls ejection of the ink from the recording head based on at least one of the information on the openings and the information on the recording medium; anda reading mode switching control portion that switches a reading mode of the reading sensor between the first and second reading modes.2. The inkjet recording apparatus according to claim 1 , whereinthe reading mode switching control portion switches between the first and second reading mode alternately every integral multiple of a formation period for one dot as a unit of ...

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Номер записи: 54
13-01-2022 дата публикации

Applying mold chase structure to end portion of fluid ejection die

Номер: US20220009231A1
Автор: Anthony M. Fuller, Chien-Hua Chen, Christopher A. Leonard
Принадлежит: Hewlett Packard Development Co LP

A method includes applying a mold chase to a fluid ejection die to at least partially define at least one cavity. The mold chase includes a feature to contact a fluid ejection portion of the fluid ejection die, and at least one structure separate from the feature to contact a first end portion adjacent a first end of the fluid ejection die. The method includes filling the at least one cavity with a mold compound to produce a molded carrier for the fluid ejection die.

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Номер записи: 55
08-01-2015 дата публикации

Image forming device

Номер: US20150009255A1
Автор: Takeshi Matsunaga
Принадлежит: Fuji Xerox Co Ltd

An image forming device, includes: a conveying device that is capable of changing a conveyance speed of a recording medium; a plurality of liquid droplet ejecting devices which is arranged in the order along a conveyance direction of the recording medium which is conveyed by the conveying device; and a control unit which changes a concentration of a liquid droplet per unit area which is ejected from the liquid droplet ejecting device to be landed on the recording medium, in accordance with the conveyance speed, when a multi-color image is formed using liquid droplets of different colors which are ejected from two or more of the plurality of liquid droplet ejecting devices.

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Номер записи: 56
12-01-2017 дата публикации

EJECTION DEVICE

Номер: US20170008275A1
Автор: LIU MINGHUI, MATSUDA YASUNORI
Принадлежит: FUNAI ELECTRIC CO., LTD.

An ejection device capable of preventing a discharge part from contacting an object is provided. The ejection device has a discharge part, a light projecting part, a light receiving part and a controller. The discharge part discharges a droplet to an object. The light projecting part projects a light between the discharge part and the object to form a light path across the object, and the light receiving part receives the light projected by the light projecting part. The controller stops driving the discharge part when the light receiving part does not receive the light. 1. An ejection device , comprising:a discharge part discharging a droplet to an object;a light projecting part projecting a light between the discharge part and the object to form a light path across the object;a light receiving part receiving the light projected by the light projecting part; anda controller stopping driving the discharge part when the light receiving part does not receive the light.2. The ejection device according to claim 1 , comprising an object placing part on which the object is placed.3. The ejection device according to claim 1 , wherein the light path inclines at a predetermined angle with respect to at least a first direction of the discharge part.4. The ejection device according to claim 1 , wherein the light projecting part and the light receiving part are disposed outside a movement range of the discharge part.5. The ejection device according to claim 1 , comprising a reflecting part reflecting the light projected by the light projecting part to propagate across the object at least one time.6. The ejection device according to claim 5 , wherein the reflecting part is disposed respectively on one end side and another end side of the object.7. The ejection device according to claim 4 , wherein the light projecting part and the light receiving part are disposed respectively on one end side and another end side of the object.8. The ejection device according to claim 3 , ...

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Номер записи: 57
12-01-2017 дата публикации

OPERATION OF PRINTING SYSTEMS

Номер: US20170008276A1
Автор: Amela Eduardo, Fernandez Jaime, Humet Jacint, Vall Marc Serra
Принадлежит:

Operations of printing systems are disclosed. According to examples, a deposition sequence for depositing printing fluids onto a substrate location is dynamically controlled. Sub-groups of nozzles in nozzle arrays are selected according to the deposition sequence. 1. A printing system , comprising:a printhead receiving assembly to receive a printhead including a first nozzle array arrangement for jetting a first printing fluid, a second nozzle array arrangement for jetting a second printing fluid, and a third nozzle array arrangement for jetting a third printing fluid; anda processor to operate the first nozzle array arrangement, the second nozzle array arrangement, and the third nozzle array arrangement to deposit the first and the second printing fluids onto a swath of a substrate within a same pass of the printhead over the swath, and deposit the third printing fluid onto the swath within a different pass of the printhead over the swath after the substrate has advanced in relation to the printhead in a substrate advance direction perpendicular to a pass direction of the printhead.2. The printing system of claim 1 , wherein the first and the second printing fluids are deposited quasi-simultaneously claim 1 , and the third printing fluid is deposited non-quasi-simultaneously.3. The printing system of claim 1 , wherein the first nozzle array arrangement and the second nozzle array arrangement are arranged parallel to each other with nozzles disposed in a non-staggered configuration.4. The printing system of claim 1 , wherein the first printing fluid is an ink fluid and the second printing fluid is a treatment fluid.5. The printing system of claim 4 , wherein the second nozzle array arrangement is for jetting a treatment fluid and includes at least one of a first array for ejecting a pre-treatment fluid or a second array for ejecting a post-treatment fluid.6. The printing system of claim 5 , wherein the second nozzle array arrangement includes the first array and the ...

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Номер записи: 58
14-01-2016 дата публикации

Liquid discharge apparatus and method of discharging liquid

Номер: US20160009081A1
Автор: Shuji Otsuka, Tadashi Kiyuna, Toshifumi Asanuma
Принадлежит: Seiko Epson Corp

A liquid discharge apparatus includes an actuator element configured and arranged to receive a drive signal to discharge a liquid, the liquid being an ink including 0.1 wt % to 10 wt % of a polar solvent. The waveform of the drive signal supplied to the actuator element includes a non-rectangular shaped pulse with a ripple being formed in a falling portion of the non-rectangular shaped pulse.

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Номер записи: 59
27-01-2022 дата публикации

METHOD AND DEVICE FOR INCREASING THE PRINT QUALITY OF AN INKJET PRINTING DEVICE

Номер: US20220024221A1
Автор: Hitzlsperger Florian, Stöckle Ulrich
Принадлежит: Canon Production Printing Holding B.V.

In a method and system for increasing print quality, activation pulses are activated with which a nozzle of an inkjet printing device to print dots on a recording medium. The activation pulses may be adapted based on sensor data with respect to already printed dots. The method and system can further include an automatic adaptation of the activation pulses to increase print quality even given the presence of soiling at the nozzle. 1. A device for increasing the print quality of an inkjet printing device having at least one nozzle and being configured to produce , in reaction to an activation pulse , an ink ejection to print a dot of a print image on a recording medium , the device comprising:an interface configured to receive sensor data corresponding to at least one dot printed by the at least one nozzle; andprocessing circuitry configured to adapt the activation pulse for printing a subsequent dot based on the sensor data.2. The device according to claim 1 , wherein the processing circuitry is configured to:determine, based on the sensor data, that the ink ejection of the at least one nozzle is negatively affected; andadapt the activation pulse for printing the subsequent dot based on the determination.3. The device according to claim 2 , wherein the processing circuitry is configured to detect claim 2 , based on the sensor data claim 2 , that:the dot printed by the at least one nozzle is subdivided into a plurality of sub-regions that are separate from one another; and/orthe at least one nozzle exhibits an X-split effect indicative of the ink ejection of the at least one nozzle being negatively affected.4. The device according to claim 1 , wherein the processing circuitry is configured to select claim 1 , based on the sensor data claim 1 , the activation pulse for printing the subsequent dot from a list of predefined activation pulses.5. The device according to claim 4 , wherein:the list of predefined activation pulses comprises a plurality of different activation ...

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Номер записи: 60
10-01-2019 дата публикации

INKJET PRINTING APPARATUS AND EJECTING METHOD

Номер: US20190009522A1
Автор: Fukasawa Takuya, Nakagawa Yoshinori, Nakai Hiroshi, Nakano Takatoshi, Sato Noriko, Takahashi Atsushi
Принадлежит:

There is provided an inkjet printing apparatus including: a print head having an ejection opening surface on which a first ejection opening array capable of ejecting a first ink and a second ejection opening array capable of ejecting a second ink are arranged; a cap member; and a print controller configured to cause the first and the second ejection opening arrays to perform preliminary ejection to an inside of the cap member, and to cause the first ejection opening array to perform preliminary ejection in a first relative position and cause the second ejection opening array to perform preliminary ejection in a second relative position, wherein, on the cap member, a position in which the second ink lands by the preliminary ejection overlaps with an area where the first ink lands by the preliminary ejection. 1. An inkjet printing apparatus comprising:a print head having an ejection opening surface on which a first ejection opening array capable of ejecting a first ink to a print medium and a second ejection opening array capable of ejecting a second ink to a print medium are arranged;a cap member configured to cap the first ejection opening array and the second ejection opening array; anda print controller configured to cause the first ejection opening array and the second ejection opening array to perform preliminary ejection to an inside of the cap member;the print controller configured to cause the first ejection opening array to perform preliminary ejection in a first relative position and cause the second ejection opening array to perform preliminary ejection in a second relative position that is different from the first relative position,wherein, on the cap member, a position in which the second ink lands by the preliminary ejection overlaps with an area where the first ink lands by the preliminary ejection.2. The inkjet printing apparatus according to claim 1 , wherein the first ink is color ink and the second ink is black ink.3. The inkjet printing apparatus ...

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Номер записи: 61
10-01-2019 дата публикации

Image Processing Apparatus and Non-Transitory Computer-Readable Storage Medium Storing Program

Номер: US20190009523A1
Автор: Morikawa Shota
Принадлежит:

An image processing apparatus repeats an ejection process for ejecting color materials by moving a print head in one of a forward direction and a reverse direction in a main scanning direction, and a moving process for moving a print medium in a sub-scanning direction. In a case where an L-th band image satisfies both of a first color condition and a second color condition, a direction of the ejection process is determined to be the same direction as the direction of moving of the print head in the ejection process for another band image including a predetermined number or more of pixels. Where the L-th band image does not satisfy at least one of the first color condition and the second color condition, the direction process of the ejection process is determined to be an opposite direction to moving of the print head in an (L−1)-th ejection process. 1. An image processing apparatus for enabling a printing execution unit to execute image printing , the printing execution unit comprising a print head including a plurality of nozzle groups , the plurality of nozzle groups including a first nozzle group and a second nozzle group , the image processing apparatus comprising a controller configured to perform:acquiring target image data;determining a direction of moving of the print head among a forward direction and a reverse direction in a main scanning direction for band image data included in the target image data; and the ejection process includes a first ejection process and a second ejection process,', 'the first ejection process for ejecting, by moving the print head in the forward direction, a first color material from the first nozzle group onto a first specific position of the print medium followed by a second color material from the second nozzle group,', 'the second ejection process for ejecting, by moving the print head in the reverse direction, the second color material from the second nozzle group onto a second specific position of the print medium followed ...

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Номер записи: 62
09-01-2020 дата публикации

INKJET WIDTH ADJUSTMENT METHOD AND THREE-DIMENSIONAL PRINTING EQUIPMENT

Номер: US20200009862A1
Автор: Hsieh Hsin-Ta, HUANG Yu-Ting, Shih Ko-Wei, Yuan Kuo-Yen
Принадлежит:

An inkjet width adjustment method adapting to three-dimensional printing equipment is provided. The method in one of exemplary embodiments is provided hereafter. A three-dimensional digital model is obtained, and a slicing procedure is performed on the three-dimensional digital model to produce a layer object, wherein the layer object has a cross-sectional contour. A surface tilt degree corresponding to the cross-sectional contour is obtained from the three-dimensional digital model, and an ideal inkjet width of the layer object is calculated according to the surface tilt degree corresponding to the cross-sectional contour. After a print module is controlled to print the layer object, an inkjet module is controlled to spray ink along the cross-sectional contour of the layer object according to the ideal inkjet width. In addition, the three-dimensional printing equipment is also provided. 1. An inkjet width adjustment method adapted for printing a color three-dimensional object , comprising:obtaining a three-dimensional digital model, and performing a slicing procedure on the three-dimensional digital model to produce a layer object, wherein the layer object has a cross-sectional contour;obtaining a surface tilt degree corresponding to the cross-sectional contour from the three-dimensional digital model, and calculating an ideal inkjet width of the layer object according to the surface tilt degree corresponding to the cross-sectional contour; andafter a printing module is controlled to print the layer object, controlling an inkjet module to spray ink along the cross-sectional contour of the layer object according to the ideal inkjet width.2. The inkjet width adjustment method according to claim 1 , wherein the step of obtaining the surface tilt degree corresponding to the cross-sectional contour from the three-dimensional digital model claim 1 , and calculating the ideal inkjet width of the layer object according to the surface tilt degree corresponding to the cross- ...

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Номер записи: 63
09-01-2020 дата публикации

INKJET POSITION ADJUSTMENT METHOD AND THREE-DIMENSIONAL PRINTING EQUIPMENT

Номер: US20200009878A1
Автор: Hsieh Hsin-Ta, HUANG Yu-Ting, Shih Ko-Wei, Yuan Kuo-Yen
Принадлежит:

An inkjet position adjustment method and a three-dimensional printing equipment are provided. The inkjet position adjustment method includes the following steps. A three-dimensional digital model is obtained, and a slicing processing is performed on the three-dimensional digital model to generate a layer object having a cross-sectional contour. A normal direction of an object surface corresponding to the layer object is obtained from the three-dimensional digital model. When the normal direction points to a negative direction of a first axis, a surface tilt degree of the object surface corresponding to the layer object is obtained, and an inner-shift amount of an inkjet position of the layer object is calculated according to the surface tilt degree. An inkjet region of the layer object is obtained according to the inner-shift amount and the cross-sectional contour. After controlling a print module to print the layer object, an inkjet module is controlled to inject ink on the layer object according to the inkjet region. 1. An inkjet position adjustment method , adapted to print a color three-dimensional object , the inkjet position adjustment method comprising:obtaining a three-dimensional digital model and performing a slicing processing on the three-dimensional digital model to generate a layer object having a cross-sectional contour;obtaining a normal direction of an object surface corresponding to the layer object from the three-dimensional digital model;obtaining a surface tilt degree of the object surface corresponding to the layer object from the three-dimensional digital model when the normal direction points to a negative direction of a first axis and calculating an inner-shift amount of an inkjet position of the layer object according to the surface tilt degree corresponding to the layer object;obtaining an inkjet region of the layer object according to the inner-shift amount and the cross-sectional contour; andcontrolling an inkjet module to inject ink on ...

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Номер записи: 64
03-02-2022 дата публикации

IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS AND STORAGE MEDIUM

Номер: US20220032610A1
Автор: Doi Tsukasa, Nakagawa Junichi, Seki Satoshi, Tanaka Hirokazu, Yamagata Mayuko
Принадлежит:

An object is to print a high quality image with resistance to print misalignment. To this end, the image processing apparatus generates quantized data for printing a first dot pattern and a second dot pattern in an overlapping manner. The first dot pattern and the second dot pattern are lattice patterns varying in a combination of two basis vectors. In a combined dot pattern obtained by combining the first and second dot patterns, there is a neighboring dot in which a dot in the first dot pattern and a dot in the second dot pattern are arranged at an interval smaller than a lattice spacing. The neighboring dot includes multiple neighboring dots varying in an approach direction. 1. An image processing method comprising the step ofobtaining gradation data for expressing a predetermined gradation value on a print medium by printing a first dot pattern and a second dot pattern on the print medium in an overlapping manner; andgenerating data for printing the first dot pattern and data that causes the print head to print the second dot pattern based on the gradation data corresponding to the predetermined gradation value, whereinthe first dot pattern and the second dot pattern are each a lattice pattern in which a position of any dot to a position of a dot other than the any dot is specified by two basis vectors and are lattice patterns that vary in a combination of the two basis vectors,a combined dot pattern formed by superimposing any dot included in the first dot pattern and any dot included in the second dot pattern one on top of the other includes a superimposed dot that is formed by superimposing of one dot included in the first dot pattern and one dot included in the second dot pattern and a neighboring dot in which one dot included in the first dot pattern and one dot included in the second dot pattern are arranged at an interval smaller than a lattice spacing defined by the basis vectors, andthe neighboring dot includes a plurality of neighboring dots varying in ...

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Номер записи: 65
03-02-2022 дата публикации

Driving waveform determining method, non-transitory computer-readable storage medium storing driving waveform determining program, liquid ejecting apparatus, and driving waveform determining system

Номер: US20220032616A1
Автор: Atsushi TOYOFUKU, Takahiro Katakura, Toshiro Murayama
Принадлежит: Seiko Epson Corp

A driving waveform determining method with which a waveform of a driving pulse applied to a driving element provided in a liquid ejecting head that ejects a liquid is determined includes: a first step of determining a waveform candidate of the driving pulse; a second step of notifying a user of candidate information of the waveform candidate; a third step of receiving an instruction issued by the user in accordance with the candidate information; and a fourth step of determining the waveform of the driving pulse in accordance with the instruction.

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Номер записи: 66
03-02-2022 дата публикации

Drive waveform determination method, non-transitory computer-readable storage medium storing a drive waveform determination program, liquid discharge apparatus, and drive waveform determination system

Номер: US20220032617A1
Автор: Nobuaki Ito, Toshiro Murayama
Принадлежит: Seiko Epson Corp

A drive waveform determination method for determining a drive waveform being a waveform of a drive pulse to be applied to a drive element to discharge liquid from a liquid discharge head, the method including: a first step of notifying a user of first information for the user to determine whether to use a first determination method of determining the drive waveform based on a user operation or a second determination method of determining the drive waveform without any user operation; and a second step of determining the drive waveform in accordance with the first determination method or the second determination method determined by the user based on an instruction on the first information.

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Номер записи: 67
15-01-2015 дата публикации

ADAPTIVE CONTROL OF CONTINUOUS INKJET PARAMETERS

Номер: US20150015631A1
Автор: Lyman Dan C.
Принадлежит:

A selected operating parameter of a device that operates in multiple operating states having differing natural response characteristics, at least one of which is variable over time, is controlled with a servo controller having control parameters which are responsive to the natural response characteristics. Sets of control parameters are provided to the servo controller corresponding to the operating states. One of the sets of control parameters corresponding to a given operating state is used by the servo controller to initiate control of the selected operating parameter in the given operating state. The response of the selected operating parameter in the given operating state is measured while the drive parameter is being controlled by the servo controller using the selected set of control parameters, and, if necessary, modified based on the response. The servo controller continues controlling the selected operating parameter using the modified set of control parameters. 1. A method of controlling a selected operating parameter in a device that operates in multiple operating states which include differing natural response characteristics , at least one of the natural response characteristics in at least one of the multiple operating states being variable over time , the selected operating parameter of the device being controlled by changes in a drive parameter of the device with a servo controller that includes control parameters which are responsive to at least one of the natural response characteristics , the method comprising:providing sets of control parameters to the servo controller, the sets corresponding to the multiple operating states of the device;selecting one of the sets of control parameters corresponding to a given operating state of the device to be used by the servo controller to initiate control of the selected operating parameter in the given operating state;measuring a response of the selected operating parameter in the given operating state of ...

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Номер записи: 68
03-02-2022 дата публикации

PRESSURE VARIATION SUPPRESSOR AND IMAGE FORMING APPARATUS

Номер: US20220032639A1
Автор: ASANUMA Tasuku
Принадлежит:

A pressure variation suppressor includes: a liquid flow chamber through which liquid flows, the liquid flow chamber having an inlet through which the liquid flows in and an outlet through which the liquid flows out; and a flexible film that partitions the liquid flow chamber into a storage chamber in which the liquid is stored and a non-storage chamber in which the liquid is not stored, wherein the flexible film is slack in a state where the liquid flows through the liquid flow chamber. 1. A pressure variation suppressor comprising:a liquid flow chamber through which liquid flows, the liquid flow chamber having an inlet through which the liquid flows in and an outlet through which the liquid flows out; anda flexible film that partitions the liquid flow chamber into a storage chamber in which the liquid is stored and a non-storage chamber in which the liquid is not stored,wherein the flexible film is slack in a state where the liquid flows through the liquid flow chamber.2. The pressure variation suppressor according to claim 1 , further comprisinga first hardware processor that biases the flexible film toward the storage chamber.3. The pressure variation suppressor according to claim 2 ,wherein the flexible film is tight with no slack by a biasing force of the first hardware processor in a state where the liquid is not stored in the storage chamber.4. The pressure variation suppressor according to claim 2 ,wherein the first hardware processor is a pressing member that is disposed in the non-storage chamber and presses the flexible film.5. The pressure variation suppressor according to claim 4 ,wherein the pressing member is a spring disposed to press a center of the flexible film.6. The pressure variation suppressor according to claim 2 ,wherein the first hardware processor is a pressure adjuster that biases the flexible film toward the storage chamber by adjusting a pressure in the non-storage chamber.7. The pressure variation suppressor according to claim 1 , ...

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Номер записи: 69
14-01-2021 дата публикации

DUPLEX PRINTING METHOD WITH SHRINKAGE COMPENSATION

Номер: US20210014379A1
Автор: HUNNEKENS Henri P.J., VAN BREUGEL Leon C.
Принадлежит: Canon Production Printing Holding B.V.

A duplex printing method includes, determining an amount of shrinkage of a media sheet onto which a front side image has been printed; scaling an image to be printed on a back side of the sheet with a scaling function that depends upon the determined shrinkage; and printing the scaled image on the back side of the sheet. The step of determining includes predicting a shrinkage of a media sheet on the basis of process parameters, and on the basis of a model that is defined by a set of model parameters and that describes a dependence of the shrinkage on the process parameters, the process parameters including at least an amount of marking material to be applied to the front side of the sheet; measuring an actual shrinkage of the sheet; and adjusting the model parameters based on a comparison between the predicted shrinkage and the measured shrinkage to improve a prediction of a shrinkage for a subsequent sheet. 1. A duplex printing method comprising , for each duplex copy to be printed , the steps of:a) determining an amount of shrinkage of a media sheet onto which a front side image has been printed;b) scaling an image to be printed on a back side of the sheet with a scaling function that depends upon an expected shrinkage of the media sheet; andc) printing the scaled image on the back side of the media sheet, a1) predicting an expected shrinkage of the media sheet on the basis of process parameters that characterize the process of printing the front side image, and on the basis of a model that is defined by a set of model parameters and that describes a dependence of the shrinkage on the process parameters, said process parameters including at least an amount of marking material to be applied to the front side of the sheet during printing;', 'a2) measuring an actual shrinkage of the sheet; and', 'a3) adjusting the model parameters based on a comparison between the predicted shrinkage and the actual shrinkage to improve a prediction of an expected shrinkage of a ...

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Номер записи: 70
21-01-2016 дата публикации

METHOD FOR EVALUATING A STATUS OF AN INKJET PRINT HEAD

Номер: US20160016400A1
Автор: JANSSEN Dominicus P.C., KHALATE Amol A., SIMONS Johannes M.M., VAN WELIE Albert G.M.
Принадлежит: OCE-TECHNOLOGIES B.V.

A method is provided to determine a droplet ejection state of a pressure chamber of a piezo-actuated inkjet print head, the method comprising a step of analyzing that includes filtering a residual pressure wave signal using a predetermined filter. The filter is designed to remove a low-frequency signal contribution generated by piezo material of the piezo actuator. Such a low-frequency signal contribution results from a piezo material property that varies over all piezo actuators without affecting the functional properties of the piezo actuator. Hence, for controlling the operation of the inkjet print head, in particular for controlling a droplet size and a droplet speed, such a signal contribution may be removed enabling a simple and nozzle-independent analysis of the residual pressure wave signal.

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Номер записи: 71
17-01-2019 дата публикации

LIQUID EJECTING APPARATUS AND DETECTING METHOD OF INTERFERENCE SUBSTANCE

Номер: US20190016120A1
Автор: Anzai Sumito
Принадлежит:

A liquid ejecting apparatus includes an ejecting unit capable of ejecting a liquid, a support unit configured to support a medium onto which the liquid is ejected and is movable in a movement direction between a set position where the medium is set and an ejecting start position where the ejecting unit starts ejecting the liquid, and a detector configured to detect whether an interference substance which is a substance that causes an interference with the ejecting unit is present on the support unit. The detector is movable between a first position and a second position, a distance between the second position and the ejecting unit being longer than a distance between the first position and the ejecting unit, in the movement direction. 1. A liquid ejecting apparatus comprising:an ejecting unit capable of ejecting a liquid;a support unit configured to support a medium onto which the liquid is ejected, the support unit being movable in a movement direction between a set position where the medium is set and an ejecting start position where the ejecting unit starts ejecting the liquid; anda detector configured to detect whether an interference substance which is a substance that causes an interference with the ejecting unit is present on the support unit, whereinthe detector is movable between a first position and a second position, a distance between the second position and the ejecting unit being longer than a distance between the first position and the ejecting unit, in the movement direction.2. The liquid ejecting apparatus according to claim 1 , whereinthe ejecting unit is capable of ejecting the liquid onto the medium between a first end portion locating on the set position side of the support unit when the support unit is located at the set position and a second end portion locating on the ejecting start position side of the support unit when the support unit is located at the ejecting start position, in the movement direction, andthe first position and the second ...

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Номер записи: 72
17-01-2019 дата публикации

Automated Controls for Contoured Surface Inkjet Printing

Номер: US20190016121A1
Автор: Baker Anthony W., Bowers, Homolak David J., III Kenneth P., Ingram Luke C., Smith Zachary R.
Принадлежит: The Boeing Company

A method of developing an automatic control plan for printing on a contoured surface is disclosed. The method includes scanning a contoured surface with a surface scanning device to produce a contoured data set, and creating a multi-dimensional model, with a computing device, of the contoured surface based on the contoured surface data set. Additionally, the method includes inputting a multi-dimensional model of a printing array and an image to be printed onto the contoured surface, into the computing device. The method further includes simulating, on the computing device, a plurality of movements performed by the printing array and a printing by the printing array to apply the image on the contoured surface. Additionally, the method includes, compiling, on the computing device, the automatic control plan which is programmed to execute the plurality of movements of the printing array to apply the image on the contoured surface. 1. A method of developing an automatic control plan for printing on a contoured surface , the method comprising:scanning a contoured surface, with a surface scanning device, to produce a contoured surface data set;creating a multi-dimensional model, with a computing device, of the contoured surface based on the contoured surface data set;inputting, into the computing device, a multi-dimensional model of a printing array configured for printing on the contoured surface;inputting, into the computing device, an image to be printed on the contoured surface and overlaying the image onto the multi-dimensional model of the contoured surface; generating a plurality of movements of the multi-dimensional model of the printing array based on the multi-dimensional model of the contoured surface and the image to be printed on the contoured surface, and', 'confirming the plurality of movements will be executed and the image will be printed on the contoured surface without issue,, 'executing a simulation on the computing device, the simulation ...

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Номер записи: 73
17-01-2019 дата публикации

LIQUID DROPLET EJECTING APPARATUS AND METHOD FOR MAINTENANCE OF LIQUID DROPLET EJECTING APPARATUS

Номер: US20190016122A1
Автор: NAKATA Toshio, SHINBARA Toshihiro, SUZUKI Toshiyuki
Принадлежит:

A liquid droplet ejecting apparatus includes a liquid droplet ejecting head that includes a pressure chamber to which a liquid is supplied from a liquid supply source, a nozzle that communicates with the pressure chamber, and an actuator that vibrates the pressure chamber, and discharges a liquid droplet from the nozzle by driving of the actuator, a cap designed to make a capping state where the cap is in contact with the liquid droplet ejecting head to form a space where the nozzle opens and a non-capping state where the cap is separated from the liquid droplet ejecting head, and a detection unit designed to detect a state in the pressure chamber, in which in the capping state, the detection unit detects the state in the pressure chamber. 1. A liquid droplet ejecting apparatus comprising:a liquid droplet ejecting head that includes a pressure chamber to which a liquid is supplied from a liquid supply source, a nozzle that communicates with the pressure chamber, and an actuator that vibrates the pressure chamber, and discharges a liquid droplet from the nozzle by driving of the actuator;a cap designed to make a capping state where the cap is in contact with the liquid droplet ejecting head to form a space where the nozzle opens and a non-capping state where the cap is separated from the liquid droplet ejecting head; anda detection unit designed to detect a state in the pressure chamber,wherein in the capping state, the detection unit detects the state in the pressure chamber.2. The liquid droplet ejecting apparatus according to claim 1 ,wherein in a case where the detection unit detects that the state in the pressure chamber is not normal, a maintenance of the liquid droplet ejecting head is performed by discharging the liquid from the nozzle.3. The liquid droplet ejecting apparatus according to claim 1 ,wherein the detection unit detects the state in the pressure chamber by detecting a vibration waveform of the pressure chamber, andthe liquid droplet ejecting ...

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Номер записи: 74
17-01-2019 дата публикации

INK-JET PRINTING APPARATUS, INK-JET PRINTING METHOD, AND STORAGE MEDIUM

Номер: US20190016123A1
Автор: Goto Fumitaka, Kajiwara Yuto, Yamaguchi Hiromitsu
Принадлежит:

In a print head, a plurality of ejection ports for ejecting metallic ink, including a solvent and particles for imparting a metallic gloss, are arranged in a predetermined direction. A plurality of printing scans are performed to the same area of the print medium to print an image on the print medium. In the printing scan, the metallic ink being ejected from the print head to a print medium while moving the print head in a scanning direction intersecting the predetermined direction. At least one of the plurality of printing scans is set as a first scan having a higher print ratio than the other printing scans. 1. An ink-jet printing apparatus comprising:a print head in which a plurality of ejection ports for ejecting metallic ink, including a solvent and particles for imparting a metallic gloss, are arranged in a predetermined direction; anda control unit configured to perform a plurality of printing scans to the same area of the print medium to print an image on the print medium, in the printing scan, the metallic ink being ejected from the print head to a print medium while moving the print head in a scanning direction intersecting the predetermined direction,wherein the control unit sets at least one of the plurality of printing scans as a first scan having a higher print ratio than the other printing scans.2. The ink-jet printing apparatus according to claim 1 ,wherein the control unit sets a print ratio of the first scan to be equal to or greater than a print ratio required for the metallic ink dots, which are dispersively formed on the print medium by one printing scan, to cover an entire unit area of the print medium.3. The ink-jet printing apparatus according to claim 1 ,wherein the control unit sets a print ratio of the first scan to be equal to or greater than half a sum of print ratios of the plurality of printing scans.4. The ink-jet printing apparatus according to claim 1 ,wherein the control unit sets any one of the printing scans corresponding to the ...

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Номер записи: 75
17-01-2019 дата публикации

PRINTING METHOD AND PRINTING APPARATUS

Номер: US20190016124A1
Автор: Hatanaka Yuji, NAKAZAWA Yusuke
Принадлежит: SEIKO EPSON CORPORATION

A printing apparatus and a printing method that make it easy to visually confirm whether a printing defect has occurred are provided. A printing method according to an application example includes printing of image in which an image is printed onto a medium by a printing apparatus, detecting of state in which a state change is detected during operations of the printing apparatus in the printing of image, and printing of information in which state change information is printed onto the medium, based on the state change detected in the detecting of state. The state change information is associated with a position in the image where the state change is detected. 1. A printing method comprising:printing of image in which an image is printed onto a medium by a printing apparatus;detecting of state in which a state change is detected during an operation of the printing apparatus in the printing of image; andprinting of information in which state change information is printed onto the medium, based on the state change detected in the detecting of state, whereinthe state change information is associated with a position in the image where the state change is detected.2. The printing method according to claim 1 , whereinthe state change information can identify contents of the state change.3. The printing method according to claim 1 , whereinthe printing of image includes printing the image by ejecting liquid droplets, and the detecting of state includes detecting an error in which the liquid droplets have not been ejected.4. The printing method according to claim 2 , whereinthe printing of image includes printing the image by ejecting liquid droplets, and the detecting of state includes detecting an error in which the liquid droplets have not been ejected.5. The printing method according to claim 1 , whereinthe detecting of state includes detecting an interrupt of printing due to a maintenance operation for the printing apparatus.6. The printing method according to claim 2 , ...

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Номер записи: 76
17-01-2019 дата публикации

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Номер: US20190016149A1
Автор: HOSHII Jun
Принадлежит:

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 ...

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Номер записи: 77
21-01-2021 дата публикации

PRINTER

Номер: US20210016562A1
Автор: Noda Eiji
Принадлежит:

A printer includes a mount on which a print target is placed, a print device to print an image on the print target on the mount, a print area indicator around a periphery of the mount, the print area indicator to indicate a print area of the image to be printed on the print target on the mount, and control circuitry to control the print area indicator to indicate the print area according to a print start position from which the print device starts printing on the print target and a print size of the image to be printed on the print target. 1. A printer comprising:a mount on which a print target is placed;a print device configured to print an image on the print target on the mount;a print area indicator around a periphery of the mount, the print area indicator configured to indicate a print area of the image to be printed on the print target on the mount; andcontrol circuitry configured to control the print area indicator to indicate the print area according to a print start position from which the print device starts printing on the print target and a print size of the image to be printed on the print target.2. The printer according to claim 1 , an X-direction print area indicator at least in one side of the mount; and', 'a Y-direction print area indicator at least in another side perpendicular to the one side of the mount, and, 'wherein the print area indicator includesthe control circuitry is configured to control the X-direction print area indicator to indicate the print area (X0 to X0+X) in a first direction, andthe control circuitry is configured to control the Y-direction print area indicator to indicate the print area (Y0 to Y0+Y) in a second direction perpendicular to the first direction,when the print start position in the first direction is X0, the print start position in the second direction is Y0, the print size in the first direction is X, and the print size in the second direction is Y.3. The printer according to claim 2 ,wherein the mount has a ...

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Номер записи: 78
19-01-2017 дата публикации

PRINTING APPARATUS AND PRINTING METHOD

Номер: US20170017864A1
Автор: HARAYAMA Kenji
Принадлежит: MIMAKI ENGINEERING CO., LTD.

A printing apparatus for performing printing in an inkjet mode includes an inkjet head, and a controller. The controller controls the inkjet head such that the inkjet head performs printing on a medium in a multi-pass mode. In each printing pass performed on each position of the medium, the controller controls the inkjet head such that the inkjet head ejects ink drops onto pixels designated by a mask data item. In a case where the spatial frequencies of the arrangement of ink dots formed on the medium during a first printing pass of the printing passes are referred to as first frequencies, and the spatial frequencies of the arrangement of ink dots formed on the medium during a second printing pass later than the first printing pass are referred to as second frequencies, the first frequencies are frequencies lower than the second frequencies. 1. A printing apparatus for performing printing in an inkjet method , comprising:an inkjet head for ejecting ink drops toward a medium;a main scan driver for driving the inkjet head to perform main scan operations in a main scan direction;a sub scan driver for relatively moving the inkjet head and the medium in a sub scan direction perpendicular to the main scan direction; anda controller for controlling ejection of ink drops from the inkjet head, and driving of the main scan driver and the sub scan driver,wherein the controller repeats a predetermined number of printing passes of ejecting ink drops from the inkjet head while moving the inkjet head in the main scan direction, whereby printing is performed on the medium, andthe controller controls ink drop ejection on a basis of mask data items for designating pixels to be subjected to ink drop ejection, such that spatial frequencies of an arrangement of ink dots which are formed on the medium during a first printing pass are lower than spatial frequencies of an arrangement of ink dots which are formed on the medium during a second printing pass later than the first printing pass ...

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Номер записи: 79
22-01-2015 дата публикации

Printhead spacing

Номер: US20150022576A1
Автор: Mark H. Mackenzie, Paul Coffin, Wesley R. Schalk
Принадлежит: Hewlett Packard Development Co LP

A method of printing includes directing print media to a print zone between a printhead and a platen for printing; and adjusting a spacing between the printhead and the platen based on a combination of at least two of environmental conditions of the printing, a print mode of the printing, an orientation of the print media for the printing, and a characteristic of the print media for the printing.

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Номер записи: 80
28-01-2016 дата публикации

A CONTROLLER AND METHOD FOR INDUSTRIAL PRINTING

Номер: US20160023458A1
Автор: Palmen Mikael, STYF Isak
Принадлежит:

A method and printing controller for industrial printing with the use of a plurality of print-heads for a single printing assignment are described. Printing instructions for a single printing assignment are obtained. Different portions of the single printing assignment, and associated portions of the printing instructions, are assigned among respective print-heads of a plurality of print-heads. 1. A method to improve printing control for industrial printing environment utilizing a plurality of various print-head technologies and/or print head types for a single printing assignment , the method comprising:obtaining printing instructions for the single printing assignment;analysing said printing instructions;detecting print head technology and/or type in said industrial printing environment;assigning different portions of the single printing assignment, and associated portions of the printing instructions, among respective print-heads of the plurality of print-head technologies and/or print head types based on detected print head technology and/or print head type; andsending at least one assigned printing instruction to a respective print-head type.2. The method of claim 1 , wherein the printing instructions are in a universal printing format.3. The method of claim 1 , wherein the obtaining printing instructions further comprises retrieving said printing instructions from an external source.4. The method of claim 3 , wherein the external source is CoLOS or an Enterprise Resource Planning (ERP) database claim 3 , or a network server.5. The method of claim 1 , wherein said printing instructions are user-provided.6. The method of claim 1 , wherein the obtaining printing instructions further comprises one or more of:retrieving said printing instructions from a printing controller and/or at least one connecting print-head, andcompiling the printing instructions for the single printing assignment with the use of an image creation procedure.7. (canceled)8. The method of ...

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Номер записи: 81
28-01-2016 дата публикации

PLANT FOR PRINTING CONTAINERS

Номер: US20160023459A1
Автор: Till Heinz
Принадлежит:

An apparatus for printing a design on a container includes first and second pluralities of printing stations for printing corresponding first and second colors, with the second plurality following the first. A controller operably interlinks the first and second pluralities of printing stations. Each printing station includes a print head that has an adjustable position and orientation relative to a container. A measuring device having sensors arranged to measure a distance between the print head and the container determines this. The measuring device receives, from the sensors, information representative of the print head's position and orientation relative to the container and provides it to the controller, which then adjusts it. 112-. (canceled)13. An apparatus for printing a design on a container , said apparatus comprising a first plurality of printing stations for printing a first color , a second plurality of printing stations for printing a second color , wherein said second plurality or printing stations follows said first plurality of printing stations , and a controller that operably interlinks said first first and second pluralities of printing stations , wherein each printing station from said first and second plurality of printing stations comprises a print head that has an adjustable position and orientation relative to a container , and a measuring device configured to determine said position and orientation of said print head relative to said container , wherein said measuring device comprises sensors that are arranged such that a distance between said print head and said container is continuously measurable , wherein said measuring device is configured to receive , from said sensors , information representative of said position and orientation of said print head relative to said container and to provide said information to said controller , and wherein said position and orientation of said print head relative to said container is adjustable by said ...

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Номер записи: 82
25-01-2018 дата публикации

INKJET PRINTING APPARATUS AND RECOVERY PROCESSING METHOD

Номер: US20180022086A1
Автор: Fukasawa Takuya, Kameshima Rinako, Nakano Takatoshi, Takahashi Atsushi, Teshigawara Minoru
Принадлежит:

Provided are an inkjet printing apparatus and a recovery processing method which can suppress occurrence of defective ejection and can suppress an ink consumption amount. For that purpose, information relating to a condensation degree of ink is obtained, and ejection operation is made in accordance with the obtained condensation degree of ink. 1. An inkjet printing apparatus comprising:a print head configured to perform printing by ejecting an ink from an ejection port;an ink receiving unit configured to receive an ink ejected from the print head;a control unit configured to cause the print head to perform ejection operation to the ink receiving unit; andan obtaining unit configured to obtain information relating to a condensation degree of ink, whereinthe control unit causes the print head to perform the ejection operation based on the information relating to a condensation degree of ink obtained by the obtaining unit.2. The inkjet printing apparatus according to claim 1 , whereinthe control unit changes a number of ejection times in the ejection operation based on the information relating to a condensation degree of ink obtained by the obtaining unit.3. The inkjet printing apparatus according to claim 1 , further comprising:a calculating unit configured to calculate a deposited amount of ink in the ink receiving unit based on the information relating to a condensation degree of ink obtained by the obtaining unit.4. The inkjet printing apparatus according to claim 3 , whereinthe control unit causes the print head to perform the ejection operation in a case where the deposited amount calculated by the calculating unit is larger than a threshold value.5. The inkjet printing apparatus according to claim 1 , whereinthe control unit causes the print head to eject an ink capable of dissolving a deposited ink in the ejection operation.6. The inkjet printing apparatus according to claim 1 , whereinthe ink receiving unit has an absorber capable of absorbing an ink.7. The ...

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Номер записи: 83
25-01-2018 дата публикации

LIQUID DISCHARGE APPARATUS, LIQUID DISCHARGE SYSTEM, AND LIQUID DISCHARGE METHOD

Номер: US20180022088A1
Автор: BANDO Hanako, KUDO Koichi, NAGASU Tsuyoshi
Принадлежит: RICOH COMPANY, LTD.

A liquid discharge apparatus includes a head to discharge liquid onto a conveyed object, at least one light source to irradiate the conveyed object with light having a high relative intensity in a range of wavelength in which a relative reflectance of the liquid is high, and a detector including at least one optical sensor to perform imaging of the conveyed object being irradiated by the at least one light source, to generate data. The detector is configured to generate a detection result based on the data. The detection result including at least one of a conveyance amount of the conveyed object and a conveyance speed of the conveyed object. 1. A liquid discharge apparatus comprising:a head to discharge liquid onto a conveyed object;at least one light source to irradiate the conveyed object with light having a high relative intensity in a range of wavelength in which a relative reflectance of the liquid is high; anda detector including at least one optical sensor configured to perform imaging of the conveyed object being irradiated by the at least one light source, to generate data,the detector configured to generate a detection result based on the data, the detection result including at least one of a conveyance amount of the conveyed object and a conveyance speed of the conveyed object.2. The liquid discharge apparatus according to claim 1 , wherein the detector is configured to generate the detection result with reference to a pattern on the conveyed object.3. The liquid discharge apparatus according to claim 2 , wherein the pattern represents interference of the light reflected on a rugged shape of the conveyed object claim 2 , andthe detector is configured to generate the detection result based on an of the pattern.4. The liquid discharge apparatus according to claim 2 , wherein the at least one optical sensor is configured to perform imaging of the pattern at a plurality of different time points claim 2 , andwherein the detector is configured to detect a ...

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Номер записи: 84
10-02-2022 дата публикации

LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD OF LIQUID EJECTING APPARATUS

Номер: US20220040974A1
Автор: Hori Kazuhito, Kimura Hitotoshi, KOMATSU Shinya
Принадлежит:

A printer includes an ink ejecting section that ejects ink from a nozzle, an ink circulation path including an ink flow path through which the ink can be supplied to an ink ejecting section and an ink return path through which the ink supplied to the ink ejecting section is returned, a warming device including a temperature control module provided in the ink circulation path, where the warming device can heat the ink in the temperature control module, and a feed pump that can flow the ink in the ink circulation path, wherein the flow rate of the ink, in the ink circulation path, heated by the warming device is adjusted. 1. A liquid ejecting apparatus comprising: a liquid ejecting section that ejects a liquid from a nozzle;a circulation flow path including a supply flow path through which the liquid is supplied to the liquid ejecting section and a return flow path through which the liquid supplied to the liquid ejecting section is returned;a warming mechanism including a temperature control module provided in the circulation flow path, the warming mechanism being configured to heat the liquid in the temperature control module;a flow mechanism that flows the liquid in the circulation flow path;a state detection unit that detects a state of the liquid in the liquid ejecting section; anda controller, whereinthe controller controls the flow mechanism based on a viscosity of the liquid, in the liquid ejecting section, estimated from a detection result detected by the state detection unit to adjust a flow rate of the liquid, in the circulation flow path, heated by the warming mechanism.2. The liquid ejecting apparatus according to claim 1 , wherein when a viscosity of the liquid claim 1 , in the liquid ejecting section claim 1 , estimated from a detection result detected by the state detection unit when the flow rate is a set flow rate is higher than a predetermined viscosity claim 1 , the controller controls the flow mechanism so that the flow rate is larger than the set ...

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Номер записи: 85
10-02-2022 дата публикации

LABEL PRINTER WITH BARCODE SHIFTING AND SCALE INCORPORATING SUCH A LABEL PRINTER

Номер: US20220040994A1
Автор: Blankley, Davis Robert S., JR. Randy L.
Принадлежит:

A printing device includes a thermal printhead with a plurality of print elements. A controller is configured to identify an out of specification status of at least one print element, wherein the controller is further configured to determine whether printing of a specific print field requires use of the print element having the out of specification status and, if so, to determine whether a print location of the specific print field can be shifted such that the print element having out of specification status will be one of (i) aligned with a gap in the specific print field or (ii) offset to one side of the specific print field. A weighing scale incorporating the printing device is also provided. 1. A printing device , comprising:a thermal printhead with a plurality of print elements;a controller configured to identify an out of specification status of at least one print element, wherein the controller is further configured to determine whether printing of a specific print field requires use of the print element having the out of specification status and, if so, to determine whether a print location of the specific print field can be shifted such that the print element having out of specification status will be one of (i) aligned with a gap in the specific print field or (ii) offset to one side of the specific print field.2. The printing device of claim 1 , wherein the controller is configured such that claim 1 , if the controller determines that the print location of the specific print field can be shifted such that the print element having out of specification status will be one of (i) aligned with a gap in the specific print field or (ii) offset to one side of the specific print field claim 1 , then the controller implements a corresponding shift of the print location for purpose of a printing operation.3. The printing device of claim 1 , wherein the controller is configured such that an amount by which the print location of the specific print field can be shifted ...

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Номер записи: 86
24-01-2019 дата публикации

Ink jet printing method and ink jet printing apparatus

Номер: US20190023002A1
Автор: Toru Ohnishi, Yoichi Takada
Принадлежит: Canon Inc

There is provided an ink jet printing method including: an image forming process of applying ink onto an image forming surface of a transfer body to form a first intermediate image; an auxiliary liquid applying process of applying an auxiliary liquid containing a thermoplastic resin onto the first intermediate image on the transfer body to form a second intermediate image; and a transferring process of contacting the second intermediate image on the transfer body with a printing medium and separating the second intermediate image from the transfer body while maintaining a contact state with the printing medium to transfer the second intermediate image to the printing medium, wherein in the auxiliary liquid applying process, an area difference between an area of a first intermediate image and an area of an auxiliary liquid application area in the image forming surface is adjusted.

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Номер записи: 87
24-01-2019 дата публикации

INKJET PRINTING SYSTEM AND METHOD FOR PROCESSING SUBSTRATES

Номер: US20190023003A1
Автор: VAN DIJK Laurentius Hendrikus Adrianus, VERHEIJEN Johan
Принадлежит: MEYER BURGER (NETHERLANDS) B.V.

Inkjet printing system for processing substrates including a chuck for placement of a substrate and an inkjet printing head with at least one nozzle. Each chuck has chuck reference marks, each of which is associated with an associated camera. An electronic controller assembly is configured to take a set of images each instance a substrate having substrate reference marks has been placed on a chuck, with each image containing a chuck reference mark and a substrate reference mark. For each image, the position of the chuck relative to the camera and the position of the substrate relative to the camera is determined. Subsequently, the substrate position relative to the chuck is calculated and based thereon the firing of the at least one nozzle is timed and the movement of the printing motion assembly is controlled so that the liquid drops are accurately positioned on the substrate. 2. The inkjet printing system according to claim 1 , wherein at least one of the chuck reference marks has a shape that defines a length and a direction claim 1 , wherein the size of the shape is such that a plurality of pixels of an associated camera is involved for forming a representation of said chuck reference mark in the image.3. The inkjet printing system according to claim 1 , wherein the first threshold value is 5 micrometer or less.4. The inkjet printing system according to claim 1 , wherein the second threshold value is 50 micrometer or less.5. The inkjet printing system according to claim 1 , wherein the system is configured for processing rectangular substrates having four substrate edge parts of which two substrate edge parts are parallel and extend in a first direction and of which two other substrate edge parts are parallel and extend in a second direction claim 1 , wherein the first and the second direction are substantially orthogonal claim 1 , wherein the placement area is substantially rectangular and bounded by four boundary lines which extend parallel to the substrate ...

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Номер записи: 88
24-01-2019 дата публикации

NOZZLE CONDITION INDICATION

Номер: US20190023004A1
Автор: ANDERSON Daryl E., Fricke Peter James, Gardner James Michael, Martin Eric T.
Принадлежит:

In some examples, a fluid die includes a fluid nozzle, a first latch, a second latch, and a timing circuit comprising a counter and a comparator. The timing circuit is to trigger the first latch, at a first predetermined time instant from an edge of a firing pulse, to store a first test result obtained based on a voltage measured across the fluid nozzle, and trigger the second latch, at a second predetermined time instant from the edge of the firing pulse, to store a second test result obtained based on a voltage measured across the fluid nozzle. 1. A print die comprising:a print nozzle;a first latch;a second latch;a timing circuit comprising a counter and a comparator,the timing circuit to trigger the first latch, at a first predetermined time instant from an edge of a firing pulse, to register a first test result obtained based on a voltage measured across the print nozzle, andthe timing circuit to trigger the second latch, at a second predetermined time instant from the edge of the firing pulse, to register a second test result obtained based on a voltage measured across the print nozzle, the second predetermined time instant different from the first predetermined time instant, and the firing pulse for activating the print nozzle.2. The print die of claim 1 , further comprising:a drive bubble detect module to evaluate a condition of the print nozzle based on the first test result and the second test result.3. The print die of claim 1 , wherein the comparator is to compare a value of the counter to a first time value in a first time repository to determine the first predetermined time instant claim 1 , and the comparator is to compare the value of the counter to a second time value in a second time repository to determine the second predetermined time instant.4. The print die of claim 3 , wherein the timing circuit further comprises a multiplexer to selectively connect the first time repository and the second time repository to the comparator.5. The print die of ...

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Номер записи: 89
24-01-2019 дата публикации

INKJET PRINTER

Номер: US20190023011A1
Автор: IKEHATA Katsuo, NISHIHARA Yuya, OGURA Yoshinari
Принадлежит:

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 ...

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Номер записи: 90
23-01-2020 дата публикации

DROPLET FORMING DEVICE, DROPLET FORMING METHOD, AND DISPENSING APPARATUS

Номер: US20200023328A1
Автор: KURAMOCHI Yuzuru, MASHIKO Ryuya, Matsumoto Takahiko, MURAMATSU Koichi, MURANO Mayuko, Nakazawa Satoshi, OKANO SATOSHI, Seo Manabu, TAKAGI Daisuke, Yaginuma Hidekazu
Принадлежит:

A droplet forming device is provided. The droplet forming device includes a liquid holder configured to hold a liquid, a film having a discharge hole, two or more vibration generators configured to vibrate the film, and a driver configured to apply a driving signal to the vibration generators. One or more of the vibration generators are disposed in each region on the film where a polarity of bending moment differs. 1. A droplet forming device comprising:a liquid holder configured to hold a liquid;a film having a discharge hole;two or more vibration generators configured to vibrate the film; anda driver configured to apply a driving signal to the vibration generators,wherein one or more of the vibration generators are disposed in each region on the film where a polarity of bending moment differs.2. The droplet forming device according to claim 1 , wherein the two or more vibration generators are disposed on the film spaced outward by a certain distance from a center of the discharge hole.3. The droplet forming device according to claim 2 , wherein the two or more vibration generators are disposed on the film in an annular shape with respect to the center of the discharge hole.4. The droplet forming device according to claim 2 , wherein the two or more vibration generators are disposed on the film in a frame-like shape with respect to the center of the discharge hole.5. The droplet forming device according to claim 1 , wherein the driver is configured to selectively apply an arbitrary driving signal to the two or more vibration generators.6. The droplet forming device according to claim 1 ,wherein the film has a circular shape,wherein one of the two or more vibration generators is disposed inside a concentric circular region on the film having a radius of approximately (½)r and another one of the two or more vibration generators is disposed outside the concentric circular region.7. The droplet forming device according to claim 1 , wherein the driving signal contains a ...

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Номер записи: 91
23-01-2020 дата публикации

PRINTHEAD ADJUSTMENT DEVICES, SYSTEMS, AND METHODS

Номер: US20200023658A1
Автор: BUCHNER Christopher, KO Alexander Sou-Kang
Принадлежит: KATEEVA, INC.

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 ...

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Номер записи: 92
28-01-2021 дата публикации

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

Номер: US20210023837A1
Автор: HAYASHI Tomoaki, KUDO Koichi, MIZUNO Masahiro, NAGASU Tsuyoshi, SUNAOSHI Masayuki
Принадлежит: RICOH COMPANY, LTD.

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 ...

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Номер записи: 93
28-01-2021 дата публикации

INK JET RECORDING APPARATUS

Номер: US20210023851A1
Автор: Anan Naohiro
Принадлежит:

An ink jet recording apparatus is provided with a conveying unit, a drive roller controller and a discharge timing controller. The drive roller controller controls a rotation speed of a drive roller based on pulse signals output by an encoder and corresponding to an angular velocity of a driven roller and an actual outer diameter of the driven roller. The discharge timing controller controls an ink discharge timing based on signals obtained by attenuating multiple frequency components of a target frequency corresponding to a pulse number of the pulse signals output from the encoder during one turn of the driven roller in the pulse signals and an actual outer diameter of the driven roller. 1. An ink jet recording apparatus , comprising:an ink head configured to discharge an ink;a conveying unit arranged to face the ink head, the conveying unit conveying a sheet to allow the ink to be discharged onto the sheet while carrying the sheet; anda control unit;wherein: a conveyor belt configured to carry the sheet, the conveyor belt turning and moving along a predetermined turning direction;', 'a drive roller configured to drive the conveyor belt in the turning direction by being held in contact with an inner peripheral surface of the conveyor belt;', 'a driving unit configured to generate a rotational drive force for rotating the drive roller;', 'a driven roller configured to rotate, following the conveyor belt, by being held in contact with the inner peripheral surface of the conveyor belt at a position different from the drive roller; and', 'an encoder configured to output pulse signals corresponding to an angular velocity of the driven roller, and, 'the conveying unit includes a storage configured to store outer diameter information on an outer diameter of the driven roller;', 'a filter configured to attenuate frequency components of a target frequency in the pulse signals output from the encoder, using a frequency corresponding to a pulse number of the pulse signals ...

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Номер записи: 94
24-04-2014 дата публикации

Ink jet head driving device

Номер: US20140111570A1
Автор: Mamoru Kimura, Noboru Nitta, Teruyuki Hiyoshi, Tomohisa Yoshimaru
Принадлежит: Toshiba TEC Corp

A driving device of an ink jet head including a plurality of ejection channels, includes a plurality of driving waveform generation portions that are provided so as to respectively correspond to the plurality of ejection channels, a random number generation portion that generates a random number, and a connection portion. The respective driving waveform generation portions receive printing data and correction data, generate a driving signal of the ejection channels on the basis of the received printing data, correct a waveform of the driving signal by using the received correction data, and then output the corrected waveform to the corresponding ejection channels. The connection portion connects the random number generation portion to the respective driving waveform generation portions such that a random number generated from the random number generation portion is supplied to each of the driving waveform generation portions as correction data having a value independent for each of the driving waveform generation portions.

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Номер записи: 95
02-02-2017 дата публикации

Method for controlling liquid ejection head and liquid ejecting apparatus

Номер: US20170028712A1
Автор: Chiaki Muraoka, Keiji Tomizawa, Takuma Kodoi
Принадлежит: Canon Inc

There is provided a method for stabilizing a refilling speed within a predetermined range even with various physical properties of liquid to be ejected in a liquid ejection head using a thermal system. To achieve this, a drive pulse is controlled for each nozzle array according to the combination of a predetermined material and structure of a bubble-generating chamber and the physical property of the liquid to be ejected such that an amount of an overshoot and the refilling speed are within a predetermined range.

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Номер записи: 96
01-02-2018 дата публикации

CONTROLLING ADVANCE OF PRINT MEDIA TO DELIVER PRINTING FLUID FROM PLURAL COLUMNS OF NOZZLES

Номер: US20180029355A1
Автор: Müller Andreas, Sarkar Utpal Kumar
Принадлежит:

In some examples, a printing system includes a printhead comprising a nozzle array including plural columns of nozzles to deliver printing fluid to a print medium, wherein nozzles in a first column of the columns are offset from nozzles in a second column of the columns. A controller is to control printing onto the print medium using the printhead by, for each respective pass of a plurality of passes of the printhead over the print medium, controlling an advance of the print medium for a print mask pattern that controls firing of the nozzles of the printhead, where the controlled advance of the print medium causes nozzles from different columns of nozzles of the nozzle array to deliver dots of printing fluid to a given row of a swath in successive passes of the plurality of passes. 1. A printing system comprising:a printhead comprising a nozzle array comprising plural columns of nozzles to deliver printing fluid to a print medium, wherein nozzles in a first column of the columns are offset from nozzles in a second column of the columns; and 'for each respective pass of a plurality of passes of the printhead over the print medium, controlling an advance of the print medium for a print mask pattern that controls firing of the nozzles of the printhead, where the controlled advance of the print medium causes nozzles from different columns of nozzles of the nozzle array to deliver dots of printing fluid to a given row of a swath in successive passes of the plurality of passes.', 'a controller to control printing onto the print medium using the printhead by2. The printing system of claim 1 , wherein the print mask pattern specifies first positions at which no nozzle of the printhead is fired claim 1 , and second positions corresponding to firing opportunities for nozzles of the printhead.3. The printing system of claim 2 , wherein a first subset of the second positions specifies firing opportunities for nozzles of the first column claim 2 , and a second subset of the ...

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Номер записи: 97
01-02-2018 дата публикации

INKJET RECORDING APPARATUS AND CLEANING METHOD

Номер: US20180029356A1
Автор: Furuyama Satoko, Kosaka Kei, Matsui Monta, Tenkawa Tomoyuki
Принадлежит:

An inkjet recording apparatus includes a recording head including a first discharge port configured to discharge a first amount of ink droplets and a second discharge port configured to discharge a second amount of ink droplets smaller than the first amount, a cap, a suction unit, and a determination unit configured to determine whether to perform a first recording operation by using the first and second discharge ports or a second recording operation by only using the first discharge port. If the first recording operation is determined to be performed, the suction unit performs a first suction operation with a first strength and a second suction operation with a second strength higher than the first strength. If the second recording operation is determined to be performed, the suction unit is controlled not to perform the second suction operation and to perform the first suction operation. 1. An inkjet recording apparatus comprising:a recording head configured to perform a recording operation on a recording medium, the recording head including a discharge port surface in which a first discharge port configured to discharge a first amount of ink droplets and a second discharge port configured to discharge a second amount of ink droplets are formed, the second amount being smaller than the first amount;a cap configured to cap the first and second discharge ports;a suction unit connected to the cap and configured to suck in ink from the recording head with the discharge port surface capped with the cap;a determination unit configured to determine which of a plurality of recording operations to be performed by the recording head, the plurality of recording operations including a first recording operation for performing recording on the recording medium by using the first and second discharge ports and a second recording operation for performing recording on the recording medium by using the first discharge port without using the second discharge port; anda control unit ...

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Номер записи: 98
01-02-2018 дата публикации

PRINTING APPARATUS AND PERFORMANCE MAINTAINING METHOD

Номер: US20180029370A1
Автор: Fujikawa Muneharu
Принадлежит:

A printing apparatus includes: a printhead configured to discharge ink; a carriage, on which the printhead is mounted, configured to move in a first direction such that the printhead moves across a printing region where a printing operation by the printhead is performed and a standby region adjacent to the printing region; a cap arranged in the standby region and configured to suck the ink from the printhead; and a wiper configured to perform wiping for the printhead. The cap can be displaced to a first position and a second position farther from the printing region in the first direction than the first position. At the second position, the cap can be displaced to an upper position to cap the printhead and a lower position to be separated from the printhead allowing the wiper to wipe the printhead. 1. A printing apparatus comprising:a printhead configured to discharge ink;a carriage, on which the printhead is mounted, configured to move in a first direction such that the printhead moves across a printing region where a printing operation by the printhead is performed and a standby region adjacent to the printing region;a cap arranged in the standby region and configured to suck the ink from the printhead; anda wiper configured to perform wiping for the printhead,wherein the cap can be displaced to a first position and a second position farther from the printing region in the first direction than the first position, andwherein, at the second position, the cap can be displaced to an upper position to cap the printhead and a lower position to be separated from the printhead allowing the wiper to wipe the printhead.2. The apparatus according to claim 1 , further comprising a driving unit configured to displace the cap at least in the first direction in the standby region claim 1 ,wherein the driving unit includes a cam member to be displaced by a driving force from a driving source, andthe cap is displaced synchronously with the displacement of the cam member.3. The ...

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Номер записи: 99
31-01-2019 дата публикации

PRINTING SYSTEM AND METHOD

Номер: US20190030884A1
Автор: Chen Tzer-Yi, DU YU, Liker Stephen Jay, MacKay Donald
Принадлежит: ILLINOIS TOOL WORKS INC.

A printing system and method print different colors onto a target object to form a machine-readable data representation having a symbol contrast of at least 40%. The printing system and method direct print heads to print the different colors by printing a base layer of a first color of the different colors on the target object and printing an upper layer of a different, second color of the different colors on top of the base layer of the first color, or by printing print the machine-readable data representation as an interdigitated data representation by printing the different colors onto the target object so that none of the different colors is printed on top of another color of the different colors. 1. A printing system comprising:one or more print heads configured to print different colors onto a target object to form a machine-readable data representation on the target object having a symbol contrast of at least 40%; and print the machine-readable data representation as a multi-layer data representation by printing a base layer of a first color of the different colors on the target object and printing an upper layer of a different, second color of the different colors on top of the base layer of the first color, or', 'print the machine-readable data representation as an interdigitated data representation by printing the different colors onto the target object so that none of the different colors is printed on top of another color of the different colors., 'a controller configured to direct the one or more print heads to print the different colors by directing the one or more print heads to one or more of2. The printing system of claim 1 , wherein the controller is configured to direct the one or more print heads to print the machine-readable data representation on an area of the target object that is formed from corrugated cardboard.3. The printing system of claim 1 , wherein the controller is configured to direct the one or more print heads to print the machine ...

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