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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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Применить Всего найдено 6081. Отображено 100.

12-01-2012 дата публикации

Ink ejection nozzle with thermal actuator coil

Номер: US20120007924A1

Автор: Kia Silverbrook

Принадлежит: SILVERBROOK RESEARCH PTY LTD

A printhead for an inkjet printer is disclosed. The printhead has ink nozzles formed on a print face of the printhead. Each ink nozzle has an ink chamber with an ink ejection port and an ink inlet port. A paddle device is arranged inside each chamber. Each ink nozzle further has a bi-layer thermal actuator coil with a fee end connected to the paddle device. Heating of the thermal actuator coil displaces the paddle device, causing ejection of an ink droplet through the ink ejection port.

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Номер записи: 1

12-01-2012 дата публикации

Fluid handling system

Номер: US20120008882A1

Автор: Craig L. Malik, Greg K. Justice, Ronald J. Ender

Принадлежит: Hewlett Packard Development Co LP

A fluid handling system includes a valve assembly within a needle that is movable from a closed state to an open state against a bias while engaging and moving a valve stem of a fluid supply from a closed state to an open state.

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Номер записи: 2

19-01-2012 дата публикации

Solid Ink Stick with Motion Control Inset

Номер: US20120013689A1

Автор: Brian Walter Aznoe, Christopher R. Gold, Jonathan Ryan Ritter

Принадлежит: Xerox Corp

A solid ink stick for use in solid ink printers is provided that enables adjacent ink sticks to be separated and retained at a predetermined location in the feed channel.

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Номер записи: 3

02-02-2012 дата публикации

Method and system for delivering solid-ink pellets

Номер: US20120026258A1

Автор: David Lomenzo, Michael Brundige, Patrick Walker, Roger Leighton, William H. Wayman

Принадлежит: Xerox Corp

The present disclosure provides systems and methods for supplying solid-ink pellets from a container to an image-forming device. The system includes a delivery tube within the container, with one or more openings to receive solid-ink pellets from the container. An agitating structure coupled to the delivery tube disturbs the solid ink pellets. The movement of the delivery tube moves the agitating structure, resulting in disturbing the solid-ink pellets and maintaining flowability of the pellets to the image-forming device.

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Номер записи: 4

09-02-2012 дата публикации

Inkjet recording apparatus and inkjet recording method

Номер: US20120033019A1

Автор: Noboru Nitta

Принадлежит: Toshiba TEC Corp

According to embodiments, an inkjet recording apparatus includes an ink tank which contains ink, a printing head which is connected to the ink tank through an ink channel and ejects the ink from a nozzle surface, and a channel member which is provided in the ink channel and has a clearance gap that connects the ink channel to the outside. The channel member is provided in a part of the ink channel, which has a positive pressure with respect to the atmospheric pressure at least during a period in which the printing head is capable of printing.

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Номер записи: 5

23-02-2012 дата публикации

Drop Mass Calibration Method Based on Drop Positional Feedback

Номер: US20120044289A1

Автор: Jeff Lee Nelson, Lisa Marie Schmidt, Matthew Hudson Dixon, Russell J. Watt

Принадлежит: Xerox Corp

A method compensates for changes in drop mass of drops ejected by ink jets in a printhead of an ink jet imaging device. The method comprises identifying an average drop placement position for a printhead with reference to ink drop positions on an image receiving member and adjusting a parameter of one or more ink jet driving signals in response to the average drop placement position being greater than a predetermined threshold.

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Номер записи: 6

01-03-2012 дата публикации

Check valve

Номер: US20120048412A1

Автор: Chang Lin Tan

Принадлежит: Hewlett Packard Development Co LP

A check valve including a cylindrical valve well defining a chamber, a valve disk, a pin centrally connecting the valve well to the valve disk; the valve disk being axially symmetrically positioned with respect to the valve well. The valve disk forms a fluid seal with an annular rim of the valve well when a first pressure acting on the valve disk is greater that a opposing second pressure within the chamber. The check valve further includes a plurality of vanes disposed within the chamber, where the vanes prevent the valve disk from collapsing into the chamber due to an excessive first pressure on the valve disk.

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Номер записи: 7

01-03-2012 дата публикации

Liquid collection device and liquid ejecting apparatus

Номер: US20120050399A1

Автор: Takeshi Tanaka

Принадлежит: Seiko Epson Corp

A liquid collection device includes a liquid ejecting head that ejects liquid, a suction-delivery unit that sucks the liquid from the liquid ejecting head and delivers the sucked liquid, a liquid collection unit that collects the liquid delivered from the suction-delivery unit, and a gas delivery unit that delivers gas to the liquid collection unit.

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Номер записи: 8

01-03-2012 дата публикации

Inkjet printer

Номер: US20120050424A1

Автор: Naozumi Nabeshima

Принадлежит: Canon Inc

There are provided opening and closing means for opening and closing an ink flow passage and a filter chamber in which a filter is arranged horizontally. The opening and closing means is disposed upstream of the filter chamber, a first room is disposed downstream of the filter and a second room is upstream of the filter in the filter chamber. An ink discharge opening is disposed in the first room, and an ink supply opening and an air bubble storage unit for storing the air bubble flowing in with the ink are disposed in the second room. The ink supply opening and the ink discharge opening are displaced with each other in a horizontal direction for arrangement. The air bubble storage unit is arranged upward of the ink supply opening in a perpendicular direction. A suction means expands the air bubble stored in the air bubble storage unit.

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Номер записи: 9

29-03-2012 дата публикации

Stream printing method

Номер: US20120075385A1

Автор: John P. Folkers, Kevin Kuester, Michael Kozee

Принадлежит: Individual

A printing method includes providing a print head. The print head includes a valve and at least one orifice. Fluid is ejected from the orifice in a generally continuous stream. The fluid includes a conductive material. The fluid is deposited in a pattern on a substrate to form an electrically conductive deposit. At least a portion of the pattern includes a generally straight line.

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Номер записи: 10

19-04-2012 дата публикации

Solid Ink Loader with Pull-Out Drawer for Insertion Access

Номер: US20120092425A1

Автор: Brent Rodney Jones, Danielle Renee HALL, Frederick T. Mattern

Принадлежит: Xerox Corp

A phase change ink imaging device includes an ink loader operatively connected within a housing of the imaging device. At least a portion of the ink loader is configured to be withdrawn from the housing to enable ink stick insertion.

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Номер записи: 11

26-04-2012 дата публикации

Dispensing liquid using dispenser with return filter

Номер: US20120098899A1

Автор: QING Yang, Yonglin Xie

Принадлежит: Eastman Kodak Co

A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall that is positioned opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall and is in fluid communication with the liquid supply channel. The liquid supply passage includes a porous member. A liquid return passage is provided that extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage includes a porous member. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the liquid return passage. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel.

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Номер записи: 12

03-05-2012 дата публикации

Inkjet recording apparatus and image forming method

Номер: US20120105532A1

Автор: Kazuo Sanada

Принадлежит: Fujifilm Corp

An inkjet recording apparatus includes: an inkjet head having nozzles which eject ink onto a recording medium, the ink being curable by irradiation of an active light beam; a relative movement device recording medium; an active light beam irradiation device having an active light beam emission unit that emits the active light beam and is divided into units in a direction of the relative movement for irradiating the ink deposited on the recording medium with the active light beam while relative movement between the recording medium and the active light beam irradiation device is caused along with the inkjet head; and an active light beam irradiation control device which controls on or off switching with respect to each of the divided units.

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Номер записи: 13

10-05-2012 дата публикации

Immersed high surface area heater for a solid ink reservoir

Номер: US20120113172A1

Автор: Brent Rodney Jones, David Paul Platt, Edward Francis Burress, Joseph Andrew Broderick

Принадлежит: Xerox Corp

A volumetric container for storing phase-change ink includes a housing that is comprised primarily of a thermally insulating material and a heater element positioned within the housing. The heater element is positioned in the container to melt solid ink quickly to enable printing operations.

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Номер записи: 14

10-05-2012 дата публикации

Printhead integrated circuit with a solenoid piston

Номер: US20120113191A1

Автор: Kia Silverbrook

Принадлежит: SILVERBROOK RESEARCH PTY LTD

A printhead integrated circuit comprising a wafer substrate defining a nozzle outlet port; an electromagnetic piston mounted to the wafer substrate via torsion springs, said piston operatively forced towards the outlet port when activated; and a solenoid coil positioned on the wafer substrate about the piston to activate the piston when a current is passed through the coil. The piston is magnetised during a final high temperature step in a fabrication process of the nozzle apparatus to ensure that the Curie temperature is not exceeded after magnetisation

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Номер записи: 15

31-05-2012 дата публикации

System And Method For Protecting A Printer From An Over-Temperature Condition In A Printhead

Номер: US20120133699A1

Автор: Aaron Boyce, Bruce Baur, Christian Carl Gadke, David L. Knierim, Lee M. Oien, Nathaniel Morrison

Принадлежит: Xerox Corp

A method responds to an over-temperature condition in a printhead. The method includes generating a first electrical signal corresponding to a temperature in a printhead, monitoring the first electrical signal with a first electronic circuit to terminate delivery of electrical power to a printhead in response to detection of a safety event, and monitoring the first electrical signal with a second electronic circuit to regulate an amount of electrical power delivered to the printhead.

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Номер записи: 16

31-05-2012 дата публикации

Check Valve Unit For Solid Ink Reservoir System

Номер: US20120133714A1

Автор: Chad David Freitag, Chad Johan Slenes, Ivan Andrew McCracken, Shawn Michael Close, Tony Rogers, William Bruce Weaver

Принадлежит: Xerox Corp

A check valve unit is provided for a high-speed phase change ink image producing machine between a reservoir for receiving and holding a volume of melted ink from a source and a receiving unit, which may be a printhead system. The check valve unit includes a plurality of ball elements trapped between upper and lower housings defining a like plurality of inlet and discharge passageways. The passageways are configured to optimize flow of melted ink through the unit during charging of the secondary reservoir. The check valve unit is scalable as to size and number of reservoirs for a particular application. The unit further incorporates features that simplify the manufacturing and assembly process while maintaining optimal performance.

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Номер записи: 17

12-07-2012 дата публикации

Direct acting vacuum control ink system

Номер: US20120176429A1

Автор: Cris R. Miller, John E. Bateson, Yanhua Li

Принадлежит: Engage Technologies Corp

A piezoelectric DOD printing system including a piezoelectric-based print engine, a micro pump, an ink line, a vacuum sensor, and control circuitry. The micro pump delivers ink from a cartridge reservoir to the print engine. The ink line fluidly connects an outlet of the micro pump with an inlet of the print engine. The vacuum sensor is fluidly connected to the ink line. The control circuitry is electrically coupled to the vacuum sensor and programmed to control operation of the print engine and the micro pump. The control circuitry activates and deactivates the micro pump based upon information from the vacuum sensor.

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Номер записи: 18

09-08-2012 дата публикации

Pressure pulses to reduce bubbles and voids in phase change ink

Номер: US20120200620A1

Автор: Scott J. Limb

Принадлежит: Palo Alto Research Center Inc

A phase change ink printer may be operated so that multiple pressure pulses are applied to the ink in an ink flow path of the printer during a time that the ink is changing phase. During the phase change, a portion of the ink in the ink flow path is in liquid phase and another portion of the ink is in solid phase. The pressure pulses are applied at least to the liquid phase ink in the ink flow path. The phase change may involve a transition from solid to liquid phase, such as during a start-up operation, or may involve a transition from a liquid phase to a solid phase, such as during a power down operation. Application of pressure during either of these operations serves to reduce bubbles and voids in the phase change ink.

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Номер записи: 19

30-08-2012 дата публикации

Method And Apparatus For Melt Cessation To Limit Ink Flow And Ink Stick Deformation

Номер: US20120218327A1

Автор: Brent R. Jones, Chad D. Freitag, David P. Platt, Isaac S. Frazier, Jason Woebkenberg

Принадлежит: Xerox Corp

A system controls application of heat with a melt plate to an ink stick in a solid ink imaging device. The system includes a melt plate, a heater configured to heat the melt plate to a temperature sufficient to melt solid ink, a feed channel configured to direct solid ink sticks towards the melt plate to enable a leading edge of a solid ink stick to be melted by the heated melt plate, and a controller configured to separate the heater and the leading edge of the ink stick by a distance that arrest melting of the ink stick.

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Номер записи: 20

27-09-2012 дата публикации

Solid ink melter assembly

Номер: US20120242764A1

Автор: David Peter Lomenzo, Michael Fredrick Leo, Nathan Eymard Smith, Patrick James Walker, Robert Tuchrelo, Roger Leighton

Принадлежит: Xerox Corp

A solid phase change ink melter assembly in a phase change ink image producing machine comprises an array of a plurality of spaced apart fins, the array defining a top face for receiving the solid pieces of phase change ink, a bottom face for discharging melted ink, and opposite melter surfaces for melting the solid pieces in contact therewith. The assembly further comprises a number of heat transfer devices extending through and in heat transfer contact with the plurality of fins, the heat transfer devices including a heating element for heating the device. The bottom edge of the fins defines a plurality of apexes which serve as drip points for molten phase change ink.

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Номер записи: 21

11-10-2012 дата публикации

Gel maintenance cycle for a release agent application system

Номер: US20120256979A1

Автор: Joseph Benjamin Gault, Michael Cameron Gordon

Принадлежит: Xerox Corp

An inkjet printer includes a controller configured to operate the printer in a gel maintenance cycle to clean residual ink and other material from an image receiving member in the printer to maintain image quality in the printer. The controller operates the image receiving member and a drum maintenance unit in the printer to flood the image receiving member with release agent that is removed from the member by wipers in the drum maintenance unit. The removed release agent is removed from a sump, filtered, and returned to an applicator for use in printing operations.

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Номер записи: 22

22-11-2012 дата публикации

Organic compounds

Номер: US20120295860A1

Автор: Matthias Kittelmann, Ulrich Hassiepen

Принадлежит: Individual

The present invention relates to a compound The instant invention relates to a compound of formulae (I A), (I B), (X A), (X B), (Y A) or (Y B), wherein R′ represents and R″ represents hydrogen, hydroxy, C 1 -C 7 alkoxy, C 1 -C 8 -alkanoyloxy, or R 5 R 4 N—CO—O—, where R 4 and R 5 independently are C 1 -C 7 alkyl or phenyl which is unsubstituted or substituted by a substitutent selected from C 1 -C 7 alkyl, C 1 -C 7 alkoxy, halogen and trifluoromethyl and where R 4 additionally is hydrogen; or R 4 and R 5 together represent C 3 -C 6 alkylene, in free form or in form of a pharmaceutically acceptable acid addition salt. Compounds of formulae (I A), (I B), (X A), (X B), (Y A) or (Y B) inhibit DPP-IV (dipeptidyl-peptidase-IV) activity. They are therefore indicated for use as pharmaceuticals in inhibiting DPP-IV and in the treatment of conditions mediated by DPP-IV, such as non-insulin-dependent diabetes mellitus, arthritis, obesity, osteoporosis and further conditions of impaired glucose tolerance.

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Номер записи: 23

10-01-2013 дата публикации

Multi-core processor for hand-held, image capture device

Номер: US20130010127A1

Автор: Kia Silverbrook

Принадлежит: Google LLC, Silverbrook Pty Ltd

A multi-core processor for installation in a hand-held device that has first and second image sensors. The multi-core processor has a first sensor interface for receiving data from the first image sensor, and a second sensor interface for receiving data from the second image sensor. Multiple processing units in the multi-core processor are configured to operate in parallel for processing data from the first and second sensor interfaces. The multiple processing units and the first and second sensor interfaces are all integrated onto a single chip.

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Номер записи: 24

10-01-2013 дата публикации

Portable imaging device with multi-core processor

Номер: US20130010148A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A portable imaging device that has a CMOS image sensor, a color display for displaying an image sensed by the CMOS image sensor and a central processor. The central processor has an image sensor interface for receiving data from the CMOS image sensor, multiple processing units for parallel operation to simultaneously process the data, and an image display interface for sending processed data to the color display. The central processor is integrated onto a single chip.

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Номер записи: 25

17-01-2013 дата публикации

Ink remaining amount detecting device, method for detecting ink remaining amount, and ink jet printing apparatus

Номер: US20130016153A1

Автор: Kenro Yamaguchi, Takashi Sugai

Принадлежит: Canon Finetech Inc

According to the present invention, in the case where the amount of ink remaining in an ink tank is detected using light from a light emitting unit, whether or not the amount of remaining ink is smaller than a predetermined value can be accurately determined with a decrease in the life of the light emitting unit suppressed. Thus, the present invention determines a difference between output signals each output by the light receiving unit according to a corresponding one of at least two of a plurality of levels of light emissions from the light emitting unit. Based on the difference, whether or not the amount of remaining ink is smaller than the predetermined value is determined.

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Номер записи: 26

17-01-2013 дата публикации

Hand-held quad core processing apparatus

Номер: US20130016227A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A hand-held apparatus is provided having a digital camera, a display, a miniature keyboard, a network interface, and four interconnected processing units arranged to jointly run programs for the operation of the digital camera, display, miniature keyboard, and network interface.

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Номер записи: 27

17-01-2013 дата публикации

Handheld imaging device with image processor provided with multiple parallel processing units

Номер: US20130016232A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A handheld imaging device includes an image sensor for sensing an image; a micro-controller integrating therein a dedicated image processor for processing the sensed image, a bus interface, and an image sensor interface; and a plurality of processing units connected in parallel by a crossbar switch, the plurality of processing units provided within the micro-controller to form a multi-core processing unit for the processor. The image sensor interface provides communication between the micro-controller and the image sensor. The bus interface provides communication between the micro-controller and devices external to the micro-controller other than the image sensor.

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Номер записи: 28

17-01-2013 дата публикации

Handheld imaging device with multi-core image processor integrating image sensor interface

Номер: US20130016236A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A handheld imaging device includes an image sensor for sensing an image; a processor for processing the sensed image; a multi-core processing unit provided in the processor, the multi-core processing unit having a plurality of processing units connected in parallel by a crossbar switch; and an image sensor interface for converting signals from the image sensor to a format readable by the multi-core processing unit, the image sensor interface sharing a wafer substrate with the processor. A transfer of data from the image sensor interface to the plurality of processing units is conducted entirely on the shared wafer substrate.

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Номер записи: 29

17-01-2013 дата публикации

Handheld imaging device with vliw image processor

Номер: US20130016266A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A handheld imaging device includes an image sensor for sensing an image: a Very Long Instruction Word (VLIW) processor for processing the sensed image; a plurality of processing units provided in the VLIW processor, the plurality of processing units connected in parallel by a crossbar switch to form a multi-core processing unit for the VLIW processor; and an image sensor interface for receiving signals from the image sensor and converting the signals to a format readable by the VLIW processor, the image sensor interface sharing a wafer substrate with the VLIW processor. A transfer of data from the image sensor interface to the VLIW processor is conducted entirely on the shared wafer substrate.

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Номер записи: 30

24-01-2013 дата публикации

Camera system with color display and processor for reed-solomon decoding

Номер: US20130021443A1

Автор: Kia Silverbrook

Принадлежит: Google LLC

A camera system including: a substrate having a coding pattern printed thereon and a handheld digital camera device. The camera device includes: a digital camera unit having a first image sensor for capturing images and a color display for displaying captured images to a user; an integral processor configured for: controlling operation of the first image sensor and color display; decoding an imaged coding pattern printed on a substrate, the printed coding pattern employing Reed-Solomon encoding; and performing an action in the handheld digital camera device based on the decoded coding pattern. The decoding includes the steps of: detecting target structures defining the extent of the data area; determining the data area using the detected target structures; and Reed-Solomon decoding the coding pattern contained in the determined data area.

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Номер записи: 31

04-04-2013 дата публикации

FLUID EJECTION ASSEMBLY WITH CIRCULATION PUMP

Номер: US20130083136A1

Автор: GOVYADINOV Alexander, Messenger Robert, Torniainen Erik D.

Принадлежит:

A fluid ejection assembly includes a fluid slot formed in a first substrate and a channel formed in a chamber layer disposed on top of a second substrate. The bottom surface of the second substrate is adhered to the top surface of the first substrate and fluid feed holes are formed between the fluid slot and the channel. A fluid ejection element is at a first end of the channel and a pump element is at a second end of the channel to circulate fluid horizontally through the channel and vertically through the fluid feed holes. 1. A fluid ejection assembly comprising:a fluid slot formed in a first substrate;a channel formed in a chamber layer disposed on top of a second substrate, wherein a bottom surface of the second substrate is adhered to a top surface of the first substrate;fluid feed holes formed between the fluid slot and the channel;a fluid ejection element at a first end of the channel; anda pump element at a second end of the channel to circulate fluid horizontally through the channel and vertically through the fluid feed holes.2. A fluid ejection assembly as in claim 1 , wherein the fluid feed holes comprise:a first fluid feed hole adjacent to the fluid ejection element; anda second fluid feed hole adjacent to the pump element.3. A fluid ejection assembly as in claim 2 , wherein the first fluid feed hole is between the fluid ejection element and the first end of the channel.4. A fluid ejection assembly as in claim 2 , wherein the second fluid feed hole is between the pump element and the second end of the channel.5. A fluid ejection assembly as in claim 1 , wherein the fluid feed holes comprise:first and second fluid feed holes adjacent to and on either side of the fluid ejection element; anda third fluid feed hole adjacent to the pump element.6. A fluid ejection assembly as in claim 1 , wherein the fluid feed holes comprise:first and second fluid feed holes adjacent to and on either side of the pump element; anda third fluid feed hole adjacent to the fluid ...

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Номер записи: 32

11-04-2013 дата публикации

Method That Enables A Solid Ink Printer To Learn A Solid Ink Stick Type

Номер: US20130088535A1

Автор: Crawford Timothy L., Henkle Douglas B., Jones Brent R., Werner Patricia L., Zocchi Karen V.

Принадлежит: XEROX CORPORATION

A solid ink printer is configured to learn the identity of solid ink sticks for printer operation. The solid ink printer includes a feed channel having an insertion opening configured to receive solid ink sticks, a sensor positioned near the insertion opening of the feed channel and configured to obtain solid ink stick type data from a solid ink stick inserted into the insertion opening of the feed channel, and a controller communicatively coupled to the sensor to receive the solid ink stick type data, the controller being configured to store the solid ink stick type data in a memory in response to an initialization signal and to operate the solid ink printer with reference to the solid ink stick type data stored in the memory by the controller. 1. A method for configuring a solid ink printer to evaluate solid ink sticks inserted in the solid ink printer comprising:activating an initialization state in the solid ink printer;inserting a solid ink stick in an insertion opening of a feed channel;obtaining solid ink stick type data from a solid ink stick inserted into the insertion opening of the feed channel;storing the solid ink stick type data in a memory in response to the initialization state being active;deactivating the initialization state; andoperating the solid ink printer with reference to the solid ink stick type data stored in the memory during the initialization state.2. The method of claim 1 , the operation of the solid ink printer further comprising:operating a gate to allow a solid ink stick in the insertion opening to enter the feed channel.3. The method of further comprising:displacing with a solid ink stick at least one displaceable member that extends into an area of the insertion opening in the feed channel where a solid ink stick is inserted; anddetecting displacement of the displaceable member by the solid ink stick inserted into the insertion opening of the feed channel.4. The method of further comprising:directing light into a portion of an ...

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Номер записи: 33

25-04-2013 дата публикации

Ink jet printing apparatus and maintenance method

Номер: US20130100199A1

Автор: Seiji Suzuki, Shunya Sunouchi, Takaya Sato

Принадлежит: Canon Inc

Even when a pressurizing operation is performed, degradation of the quality of a printing head due to wiping of a nozzle surface is suppressed. In an ink jet printing apparatus including a printing head, an ink tank, a first pump arranged in an ink supplying path for supplying ink from the ink tank to the printing head, a second pump arranged in an ink collecting path for collecting ink from the printing head to the ink tank, a switch valve arranged between the printing head and the second pump, and a cleaning mechanism, by driving the first pump in a state where the switch valve is closed, the ink is discharged from the nozzle row, and after driving of the second pump in a state where the switch valve is opened, the cleaning mechanism is caused to clean the printing head.

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Номер записи: 34

25-04-2013 дата публикации

INK-JET RECORDING APPARATUS, INK SUPPLY METHOD, POWER SHUTDOWN METHOD, AND METHOD FOR SHUTTING DOWN TEMPERATURE ADJUSTMENT UNIT OF INK-JET RECORDING DEVICE

Номер: US20130100215A1

Автор: Kuki Takakazu, MURAMATSU Takashi

Принадлежит: KONICA MINOLTA HOLDINGS, INC.

An ink jet recording apparatus includes: a head that ejects droplets of ink; a flow passage portion; and a temperature adjustment unit. The flow passage portion supplies the ink to the head. The flow passage portion includes, in a part thereof, a reservoir unit that reserves the ink. The temperature adjustment unit is capable of adjusting temperatures of the flow passage portion and the head independently of each other. The temperature adjustment unit controls the temperatures of the flow passage portion and the head so that the ink in the head becomes liquid from solid after ink in the flow passage portion is turned to liquid from solid. 1. An ink jet recording apparatus comprising:a head that elects droplets of ink;a flow passage portion for supplying the ink to the head, the flow passage portion including, in a part thereof, a reservoir unit that reserves the ink; anda temperature adjustment unit capable of adjusting temperatures of the flow passage portion and the head independently of each, other,wherein the temperature adjustment unit controls the temperatures of the flow passage portion and the head so that the ink in the head becomes liquid from solid after ink in the flow passage portion is turned to liquid from solid.2. The ink jet recording apparatus of claim 1 , further comprising:a reservoir unit pressure adjustment unit that adjusts a pressure to be applied to the ink in the reservoir unit,wherein, after adjusting the pressure by the reservoir unit pressure adjustment unit, and turning the ink in the flow passage portion from solid to liquid, the temperature adjustment unit controls the temperatures of the flow passage portion and the head so that the ink in the head becomes liquid from solid.3. The ink jet recording apparatus of claim 2 , wherein the reservoir unit pressure adjustment unit performs control to adjust the pressure to be applied to the ink in the head before the ink in the head becomes liquid.4. The ink jet recording apparatus of claim 2 ...

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Номер записи: 35

02-05-2013 дата публикации

Inkjet recording apparatus

Номер: US20130106929A1

Автор: Hiroyuki Tanaka, Masahiro Sugimoto, Seiji Suzuki, Susumu Hirosawa, Takeaki Nakano, Yoshiaki Suzuki, Yuji Kanome

Принадлежит: Canon Inc

An inkjet recording apparatus stabilizes an ink discharge amount of a line head, while suppressing an ink supply amount of a circulation route, thereby performing high quality image recording. The inkjet recording apparatus includes a first flow path configured to supply ink from an ink tank to a first discharge port group, a second flow path configured to supply ink from the ink tank to a second discharge port group, and a control unit configured to control an ink supply amount of at least one of the first flow path and the second flow path according to the passing position of a recording medium with respect to the line head.

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Номер записи: 36

16-05-2013 дата публикации

Image receiving member with internal support for inkjet printer

Номер: US20130120513A1

Автор: Bin Zhang, Bruce Earl Thayer, Joseph Benjamin Gault, Palghat Ramesh, Paul J. McConville, Trevor James Snyder

Принадлежит: Xerox Corp

A thin wall ink image receiving member enables the ink image receiving member to reach operational temperatures from a cold state more quickly than image receiving members used in previously known printers. The thin wall image receiving member includes at least one annular support member fixedly mounted against the inner surface of the cylindrical wall to enable the image receiving member to provide adequate pressure in a nip formed with a transfix roller to transfer an ink image from the image receiving member to media in the nip.

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Номер записи: 37

06-06-2013 дата публикации

Fluid container having plurality of chambers, valves, and air bag assembly

Номер: US20130141497A1

Автор: David Olsen, Patricia A. Kellar, Patrick V. Boyd

Принадлежит: Hewlett Packard Development Co LP

A fluid container includes a housing unit including a free-fluid chamber, a regulated chamber, and a plurality of valves. The free-fluid chamber is configured to store fluid. The regulated chamber includes an air bag assembly, an outlet, and a plurality of states. The air bag assembly is configured to regulate respective fluid therein and includes at least one air bag including an internal chamber having a volume capacity. The outlet is configured to transport the respective fluid from the regulated chamber. At least one of the plurality of valves is configured to selectively stop fluid communication between the regulated chamber and the free-fluid chamber based on the respective state of the regulated chamber.

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Номер записи: 38

13-06-2013 дата публикации

Imaging drum surface emissivity and heat absorption control methods, apparatus, and systems for reduction of imaging drum temperature variation

Номер: US20130145944A1

Автор: David Paul Platt

Принадлежит: Xerox Corp

An imaging drum has an outer surface configured for receiving an ink image from a print head and transferring the image at a transfer nip. The imaging drum has a central channel extending through the drum along a central longitudinal axis. An inner drum surface faces the channel and includes surface alterations that increase or decrease at least one of surface emissivities and heat absorption to mitigate thermal influences on the imaging drum and control temperature variability along the imaging drum.

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Номер записи: 39

20-06-2013 дата публикации

LIQUID DISCHARGE DEVICE AND LIQUID DISCHARGE METHOD

Номер: US20130155133A1

Автор: Ikeda Kouji

Принадлежит:

A liquid discharge device including a discharge unit including: an elastic discharge part including a storage chamber at least partially formed of an elastic component, a supply hole which leads to the storage chamber and through which liquid is supplied to the storage chamber, and a discharge hole through which the liquid is discharged; and an actuating unit configured to vary a volumetric capacity of the storage chamber. The liquid discharge device further includes: a pressurizing unit configured to pressurize the liquid to be supplied to the storage chamber to a pressure greater than atmospheric pressure; a supply control unit configured to control whether the pressurized liquid is supplied to the storage chamber; and an actuation control unit configured to control operation of the actuating unit. 1. A liquid discharge device comprisinga discharge unit configured to discharge a droplet of a liquid including:an elastic discharge part including a storage chamber at least partially formed of an elastic component, a supply hole which leads to the storage chamber and through which the liquid is supplied to the storage chamber, and a discharge hole through which the liquid stored in the storage chamber is discharged; andan actuating unit configured to vary a volumetric capacity of the storage chamber, andthe liquid discharge device further comprising:a pressurizing unit configured to pressurize the liquid to be supplied to the storage chamber to a pressure within a stable range;a supply control unit configured to control whether the pressurized liquid is supplied to the storage chamber; andan actuation control unit configured to control operation of the actuating unit.24-. (canceled)5. The liquid discharge device according to claim 1 , further comprisinga negative pressurizing unit configured to apply a negative pressure to the liquid in the storage chamber to equalize a pressure of the liquid with the atmospheric pressure.6. The liquid discharge device according to ...

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Номер записи: 40

27-06-2013 дата публикации

Liquid jet head

Номер: US20130162738A1

Автор: Noriaki Okazawa

Принадлежит: Seiko Epson Corp

A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.

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Номер записи: 41

04-07-2013 дата публикации

Apparatus and method for pressure regulation

Номер: US20130167940A1

Автор: Gil Lavie, Moshe Levi

Принадлежит: Stratasys Ltd

A system for maintaining a desired pressure difference between a first pressure within a chamber and a reference pressure at a reference space. The system may include a peristaltic pump located along a duct that connects the chamber with the reference space. The system may further include a pressure sensor for monitoring an actual pressure difference between the first pressure within the chamber and the reference pressure at the reference space. The system may also include a controller for receiving a signal from the pressure sensor for determining the actual pressure difference from the pressure sensor and for operating the peristaltic pump, in accordance with the actual pressure difference and the desired pressure difference, to increase, decrease or leave unchanged the pressure within the chamber so as to maintain the actual pressure difference within predetermined proximity to the desired pressure difference.

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Номер записи: 42

18-07-2013 дата публикации

INK SUPPLY SYSTEM FOR PRINTER

Номер: US20130182023A1

Автор: HUNG Pei-Chun

Принадлежит: PAMNRED CORP.

An ink supply system for printer to supply ink to a printer head includes an ink reservoir, a filter connected to an outlet end of the ink reservoir, a pump arranged at a front end of the filter, a pressure chamber connected to a front end of the pump, a valve arranged at a front end of the pressure chamber, a pressure sensor connected to the valve by a tube, and a controller for controlling the pump and the valve. The pressure sensor is arranged adjacent to the printer head to detect the ink pressure in the tube, and transmits a pressure signal to the controller. The pump can pump the ink forward to increase ink pressure or rearward to decrease ink pressure. 1. An ink supply system for printer , for supplying ink to a printer head , wherein the ink supply system comprises:an ink reservoir, having an outlet end;a filter, connected to the outlet end of the ink reservoir;a pump, disposed at a front end of the filter;a controller, for controlling the pump to push the ink forward and increase pressure of the supplied ink or to push the ink rearward and decrease pressure of the supplied ink;a pressure chamber, connected to a front end of the pump;a valve, disposed at a front end of the pressure chamber, wherein the controller controls the opening and closing of the valve; anda pressure sensor, wherein the pressure sensor and the valve are disposed between the pressure chamber and the printer head, the pressure sensor is proximal to the printer head in order to detect the ink pressure within the tube, and the pressure sensor transmits the detected pressure value to the controller.2. The ink supply system for printer according to claim 1 , further comprising a sensor proximal to the ink reservoir for detecting the assembly status of the ink reservoir.3. The ink supply system for printer according to claim 1 , wherein the pump is a two-way pump.4. The ink supply system for printer according to claim 3 , wherein the pump is a peristaltic pump having multiple rollers on a ...

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Номер записи: 43

15-08-2013 дата публикации

Liquid ejecting apparatus

Номер: US20130208033A1

Автор: Takeshi Ito

Принадлежит: Seiko Epson Corp

A liquid ejecting apparatus includes a change detection device detecting a change in a relative position between an ink cartridge and a recording head, and when the change in the relative position exceeds a certain threshold value, a printer controller closes a valve mechanism so that the destruction of a meniscus in the nozzle is prevented.

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Номер записи: 44

29-08-2013 дата публикации

LIQUID CONTAINER AND APPARATUS IN WHICH LIQUID CONTAINER IS MOUNTABLE

Номер: US20130222488A1

Автор: Adachi Eiichi, Fukazawa Hideo, KOTAKI YASUO, Kubo Koichi, Miyashita Takeho, Murakami Hironori, Nanjo Tatsuo, Ogura Hideki, Takada Hitoshi

Принадлежит: CANON KABUSHIKI KAISHA

A liquid container and an apparatus in which the liquid container is mountable are provided, the liquid container and the apparatus enabling the presence or absence of remaining liquid to be checked without the need for a power source and even after the liquid container is removed. The pressure in a communication path is maintained while ink in a containing section is not supplied to the exterior. Thus, the displacement state of a detection valve which is displaced depending on the pressure in the communication path can be maintained even after removal of an ink tank. 1. A liquid container comprising:a containing section at least partly formed of a flexible member and containing a liquid;a supply section configured to supply the liquid in the containing section to an exterior through a supply path which is in communication with inside of the containing section;a displacement section configured to be displaced depending on a pressure in a communication path which is in communication with the inside of the containing section; anda valve section configured to maintain the pressure in the communication path while the liquid in the containing section is not supplied to the exterior.2. The liquid container according to claim 1 , wherein the valve section includes a check valve disposed in the supply path claim 1 , the check valve permitting a flow of the liquid from the containing section to the supply section and inhibiting a flow of the ink from the supply section to the containing section.3. The liquid container according to claim 2 , wherein the communication path is in communication with a portion of the supply path between the containing section and the supply section claim 2 , andthe valve section is provided between the portion of the supply path and the supply section.4. The liquid container according to claim 3 , wherein the valve section is also provided between the containing section and the portion of the supply path.5. The liquid container according to claim ...

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Номер записи: 45

05-09-2013 дата публикации

NON-CONTACT METHOD OF REMOVING FLOODED INK FROM PRINTHEAD PAGE

Номер: US20130229467A1

Автор: Brown Brian Robert, Karppinen Vesa, Silverbrook Kia

Принадлежит: ZAMTEC LIMITED

An ink supply system for an inkjet printhead. The ink supply system includes: an ink reservoir for containing ink, the ink reservoir having a flexible wall; a spring contained within the ink reservoir, the spring being configured for biasing the flexible wall away from an opposite wall of the ink reservoir; an ink conduit providing fluid communication between the ink reservoir and the printhead; and a pressure device for positively pressurizing the flexible wall of the ink reservoir against the bias of the spring. The pressure device includes an air pump for positively pressurizing an air chamber communicating with the flexible wall, such that actuation of the air pump causes the wall to move towards the opposite wall against the bias of the spring. 2. The ink supply system of comprising a plurality of ink reservoirs.3. The ink supply system of claim 1 , wherein said pressure device is configured for pressurizing a plurality of flexible walls of a respective plurality of ink reservoirs simultaneously.4. The ink supply system of claim 3 , wherein each ink reservoir has a respective ink conduit providing fluid communication between each ink reservoir and said printhead.5. The ink supply system of claim 1 , further comprising a controller for controlling operation of said pressure device. The present application is a Continuation of Ser. No. 11/482,960 filed on Jul. 10, 2006, which is a Continuation-In-Part of U.S. application Ser. No. 11/246,708 filed on Oct. 11, 2005, now issued U.S. Pat. No. 7,506,952, the entire contents of which are now incorporated by reference.This invention relates to inkjet printhead maintenance. It has been developed primarily for facilitating maintenance operations, such as unblocking nozzles and/or cleaning particulates from an ink ejection face of the printhead.The following applications have been filed by the Applicant:The disclosures of these co-pending applications are incorporated herein by reference.Various methods, systems and ...

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Номер записи: 46

12-09-2013 дата публикации

LIQUID INJECTING APPARATUS

Номер: US20130235127A1

Автор: ARUGA Yoshiharu, KUMAGAI Toshio, Matsumoto Hitoshi

Принадлежит: SEIKO EPSON CORPORATION

Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve. 1. A liquid injecting apparatus equipped with a liquid storing member , which stores liquid; a liquid injecting head , which injects liquid; a liquid supply passage , for supplying said liquid to the liquid injecting head from the liquid storing member; and a valve unit , which is provided in the liquid supply passage , the valve unit having:a supply chamber, into which liquid to be supplied from the liquid storing member flows;a pressure chamber, in which liquid to be led out to the liquid injecting head is stored; anda valve, which connects the supply chamber to the pressure chamber by a negative pressure generated in the pressure chamber as the liquid is injected from the liquid injecting head,wherein the supply chamber has a supply chamber opening through which the liquid is supplied from the supply chamber to the pressure chamber, andwherein the valve selectively opens and closes the supply chamber opening.2. The liquid injecting apparatus according to claim 1 , wherein the pressure chamber has an outer wall which is displaced based on the negative pressure claim 1 , and the displacement of the outer wall is transmitted to the valve.3. The liquid injecting apparatus according to claim 1 , wherein the valve unit has an urging member claim 1 , which urges the valve in a direction to ...

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Номер записи: 47

12-09-2013 дата публикации

Ink Jet Printer

Номер: US20130235128A1

Автор: Hatta Jun, HIGUCHI Tomohisa, HIRAKI Nobuo, Kato Yoshinori, Manabe Shin

Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

An ink jet printer may include an ink jet head, a cam member, a cam follower, and a valve operation mechanism. The ink jet head may comprise an ink chamber, an exhaust passage communicating with the ink chamber, and an exhaust valve disposed at the exhaust passage. The cam member may comprise a cam groove and be configured to rotate. The cam groove may comprise first, second and third grooves. The second groove and the third groove may branch from one end of the first groove. The cam follower may be configured to be guided along the cam groove. The valve operation mechanism may be coupled to the cam follower. In a state where the cam follower is present in a predetermined position in the third groove, the valve operation mechanism may make contact with the exhaust valve, and the exhaust valve may be in an opened state. 1. An ink jet printer , comprising:an ink jet head comprising an ink chamber, an exhaust passage communicating with the ink chamber, and an exhaust valve disposed at the exhaust passage;a cam member comprising a cam groove, the cam member configured to rotate, the cam groove comprising a first groove, a second groove, and a third groove, wherein the second groove and the third groove branch from one end of the first groove;a cam follower configured to be guided along the cam groove in a case where the cam member rotates; anda valve operation mechanism coupled to the cam follower, the valve operation mechanism comprising:a first member fixed to the cam follower and comprising a guide groove;a second member configured to be guided along the guide groove between a first position and a second position;a spring configured to apply a force to the first member in a predetermined direction; anda movement member configured to move between a third position and a fourth position,whereinin a state where the movement member is present at the third position, the movement member allows the first member to move in the predetermined direction by the movement member ...

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Номер записи: 48

19-09-2013 дата публикации

LIQUID EJECTING APPARATUS AND LIQUID TRANSFER METHOD

Номер: US20130242005A1

Автор: Iwata Yuji

Принадлежит: SEIKO EPSON CORPORATION

A liquid ejecting apparatus includes a head unit that ejects a liquid onto a medium; a first liquid accommodation unit that accommodates the liquid; a second liquid accommodation unit that is different from the first liquid accommodation unit; a first flow channel that communicates with the first liquid accommodation unit and the head unit; a second flow channel that communicates with the first flow channel and the second liquid accommodation unit; and a liquid supply unit that delivers the liquid from the first liquid accommodation unit to the second liquid accommodation unit through the first flow channel and the second flow channel and that returns the liquid from the second liquid accommodation unit to the first liquid accommodation unit through the second flow channel and the first flow channel. 1. A liquid ejecting apparatus comprising:a head unit that ejects a liquid onto a medium;a first liquid accommodation unit that accommodates the liquid;a second liquid accommodation unit that is different from the first liquid accommodation unit;a first flow channel that communicates with the first liquid accommodation unit and the head unit;a second flow channel that communicates with the first flow channel and the second liquid accommodation unit; anda liquid supply unit that delivers the liquid from the first liquid accommodation unit to the second liquid accommodation unit through the first flow channel and the second flow channel and that returns the liquid from the second liquid accommodation unit to the first liquid accommodation unit through the second flow channel and the first flow channel.2. The liquid ejecting apparatus according to further comprising:an on-off valve that opens or closes an outflow of the liquid which is accommodated in the first liquid accommodation unit, being provided on the first flow channel,wherein the first flow channel is connected to the second flow channel at a position further to the head unit side than a position of the on-off ...

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Номер записи: 49

19-09-2013 дата публикации

PRINT HEAD WITH ELECTROMAGNETIC VALVE ASSEMBLY

Номер: US20130242007A1

Автор: McNestry Martin

Принадлежит: VIDEOJET TECHNOLOGIES INC.

A print head includes an ink cavity, a nozzle in fluid communication with the ink cavity, and at least one valve assembly. The valve assembly includes a stopper positioned adjacent the nozzle and adapted to control flow of ink through the nozzle and an arm supporting the stopper. The arm is configured to pivotally move the stopper with respect to the nozzle to control the flow of ink through the nozzle. An electromagnet is positioned adjacent the arm and configured to move the arm toward the electromagnet to open the nozzle. A biasing member biases the arm away from the electromagnet to close the nozzle. 1. A print head comprising:a ink cavity comprising ink;a nozzle in fluid communication with the ink cavity; and a stopper positioned adjacent the nozzle and adapted to control flow of ink through the nozzle;', 'an arm supporting the stopper, the arm configured to pivotally move the stopper with respect to the nozzle to control the flow of ink through the nozzle;', 'an electromagnet positioned adjacent the arm and configured to move the arm toward the electromagnet to open the nozzle; and', 'a biasing member to bias the arm away from the electromagnet to close the nozzle., 'at least one valve assembly comprising2. The print head of wherein a stopper gap is defined by the distance between the stopper and the nozzle when the stopper is in a maximum open position and a pole gap is defined by the distance between the electromagnet and the arm when the stopper is in a closed position claim 1 , wherein the stopper gap is greater than the pole gap.3. The print head of wherein a stopper gap is defined by the distance between the stopper and the nozzle when the stopper is in a maximum open position and a pole gap is defined by the distance between the electromagnet and the arm when the stopper is in a closed position claim 1 , wherein the stopper gap is generally equal to the pole gap.4. The print head of wherein a stopper gap is defined by the distance between the stopper ...

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Номер записи: 50

03-10-2013 дата публикации

Compliant liquid path member and receptacle for ink recirculation

Номер: US20130258010A1

Автор: Devin Kyle Byerley, Isaac S. Frazier, Nicholas C. Hill, Steven Van Cleve Korol, Trevor James Snyder

Принадлежит: Xerox Corp

In an inkjet printer, an ink reclamation apparatus receives ink emitted from at least one printhead. The ink reclamation apparatus includes an ink receptacle and a liquid path member that extends from the ink receptacle to contact the face of at least one printhead proximate to a plurality of inkjets in the at least one printhead. The liquid path member draws liquid ink from the plurality of inkjets and the liquid ink enters the ink receptacle. The ink reclamation apparatus returns the ink to a reservoir in the printhead and reduces or eliminates wasted ink during operation of the at least one printhead.

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Номер записи: 51

10-10-2013 дата публикации

LIQUID INJECTING APPARATUS

Номер: US20130265372A1

Автор: ARUGA Yoshiharu, KUMAGAI Toshio, Matsumoto Hitoshi

Принадлежит:

Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve. 1. A liquid injecting apparatus equipped with a liquid injecting head , which injects liquid and is mounted on a carriage; and a plurality of valve units , each of which is mounted on the carriage to be supplied with liquid via a liquid supply passage from a liquid storing member and to supply the ink to the injecting head , each of the valve units having:a pressure chamber connected to the liquid storing member via the liquid supply passage;a valve which opens or closes the liquid supply passage to supply the liquid to the pressure chamber; anda flexible film member, forming part of an outer wall of the pressure chamber, which detects a negative pressure generated in the pressure chamber as the liquid is consumed by the injecting and the valve operates,wherein the valve units are mounted so that flexible film members of the valve units are arranged in a same direction on the carriage.2. The liquid injecting apparatus according to claim 1 , wherein the carriage is moved reciprocally and the valve units are mounted so that the flexible film members of the valve units are arranged in the same direction along the movement of the carriage.3. The liquid injecting apparatus according to claim 1 , wherein the flexible film members of the valve units are displaced in the same direction on the ...

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Номер записи: 52

17-10-2013 дата публикации

Ink-Delivery Systems

Номер: US20130271533A1

Автор: Cziraky David A., Orem Christopher P., Witz Wolfgang

Принадлежит:

Ink delivery systems to provide ink from a reservoir to an applicator pad for marking a surface. Ink is stored in a reservoir within a marker body. A valve system controls the flow of ink to the applicator pad to prevent puddling of ink on the marking surface. The reservoir is a hollow body with free flowing ink or may contain a fiber reservoir at least partially saturated with ink. The reservoir may also contain capillary channels and ribs to aid in transporting ink to the valve system. The valve system includes a plug and a spring to bias the plug in a closed position. The plug includes at least one contact surface to contact a housing, and thereby control the flow of ink from the reservoir to the applicator pad. The spring may be a coil spring or a compressible foam-like spring. 1. An ink-delivery system for a marking device comprising:an ink reservoir that includes a reservoir body and a neck portion, the reservoir body storing an amount of an ink; anda valve system disposed within the neck portion for controlling the release of the ink to an applicator pad, the valve system including a housing, a plug, and a spring, the plug is disposed within the housing and has a first end, a second end, and a central member that connects the first end and the second end, the first end is configured to mate with and seal against a first contact surface of the housing, the second end is configured to mate with and seal against a second contact surface of the housing, and the central member has a sufficient length to allow only the first end or the second end to fully mate with and seal against the first contact surface or the second contact surface, respectively, of the housing at one time.2. The ink-delivery system of claim 1 , wherein the spring biases the first end to mate with and seal against the first contact surface of the housing in a closed condition.3. The ink-deliver system of claim 2 , wherein in the closed condition ink flows into the housing.4. The ink-delivery ...

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Номер записи: 53

17-10-2013 дата публикации

FLUID CONTAINER HAVING PLURALITY OF CHAMBERS

Номер: US20130271537A1

Автор: Boyd Patrick V., Olsen David, Stathem Ralph L.

Принадлежит:

A fluid container usable with an image forming apparatus having a fluid container receiver is disclosed. The fluid container includes a housing unit including a free-fluid chamber to store a first fluid and a regulated chamber to store a second fluid. The regulated chamber includes a regulator unit configured to regulate the second fluid and an outlet configured to transport the second fluid outside of the housing unit. The fluid container also includes a fluid channel configured to establish fluid communication between ambient atmosphere and the free-fluid chamber, and a check valve configured to establish fluid communication between the free-fluid chamber and the regulated chamber. 1. A fluid container usable with an image forming apparatus having a fluid container receiver , the fluid container comprising:a housing unit including a free-fluid chamber to store a first fluid and a regulated chamber to store a second fluid, the regulated chamber including a regulator unit configured to regulate the second fluid and an outlet configured to transport the second fluid outside of the housing unit;a fluid channel configured to establish fluid communication between ambient atmosphere and the free-fluid chamber; anda check valve configured to establish fluid communication between the free-fluid chamber and the regulated chamber; andwherein the free-fluid chamber reaches a respective exhaustion state before the regulated chamber reaches the respective exhaustion state.2. The fluid container according to claim 1 , wherein the free-fluid chamber reaches the respective exhaustion state before the regulated chamber reaches the respective exhaustion state through passive sequencing therein.3. The fluid container according to claim 1 , wherein the first fluid is transported from the free-fluid chamber through the check valve to the regulated chamber in response to the second fluid being transported from the regulated chamber through the outlet to outside of the housing unit.4. ...

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Номер записи: 54

31-10-2013 дата публикации

System and Method for Removing Air From and Inkjet Cartridge and Ink Supply Line Therefor

Номер: US20130286062A1

Автор: Cyman, Jr. Theodore F., Moscato Anthony V.

Принадлежит:

A printing system includes an inkjet cartridge, an ink reservoir, and a reversible pump. A method and system of operating the printing system are providing in which first fluid line couples the ink reservoir and an input port of the inkjet cartridge. A second fluid line couples the reversible pump and an output port of the inkjet cartridge. The reversible pump is operated in a first direction to supply ink from the ink reservoir to the ink jet cartridge via the first fluid line. The reversible pump is a second direction to supply ink from the ink reservoir to the inkjet cartridge via the second fluid line. The reversible pump is operated in the first direction and the second direction repeatedly and sequentially for a predetermined duration. 1. A printing system , comprising:an inkjet cartridge;an ink reservoir;a reversible pump;a first fluid line that couples the ink reservoir and an input port of the inkjet cartridge;a second fluid line that couples the reversible pump and an output port of the inkjet cartridge; anda controller that repeatedly operates the reversible pump sequentially in a first direction and a second direction, wherein operating the reversible pump in the first direction supplies ink from the ink reservoir to the inkjet cartridge via the first fluid line and operating the reversible pump in the second direction supplies ink from the ink reservoir to the inkjet cartridge via the second fluid line.2. The printing system of claim 1 , wherein ink is supplied to the ink reservoir from an ink tank.3. The printing system of claim 2 , wherein the inkjet cartridge is disposed in the printing system at a first vertical distance from the ink tank.4. The printing system of claim 3 , comprising a further inkjet cartridge and a further ink reservoir coupled thereto claim 3 , wherein the further inkjet cartridge is disposed in the printing system at a second vertical distance from the ink tank.5. The printing system of claim 4 , wherein the vertical distance ...

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Номер записи: 55

07-11-2013 дата публикации

INK DELIVERY SYSTEM FOR INKJET PRINTHEADS

Номер: US20130293640A1

Автор: McCallum Robert, Thomson Christopher, Tilayof Bentzi

Принадлежит:

An ink delivery system for an inkjet printer has an ink supply tank and a pair of printheads located at different heights. A primary ink delivery circuit delivers ink to a pair of intermediate tanks, each tank maintained a precise distance below a respective one of the printheads. Ink is pumped to the higher tank to the level of a weir and overflowing ink flows under gravity to the lower tank. The overflowing ink fills the lower tank to the level of a weir and overflowing ink returns to the supply tank. Secondary ink delivery circuits have capillary lines for supply of ink from each of the intermediate tanks to the respective printhead. Ink is maintained in the supply lines ready for inkjet printing by establishing a negative pressure between each intermediate tank and the respective printhead. 1. An ink delivery system for an inkjet printer comprising:an ink supply tank;first and second inkjet printheads located at different heights;first and second intermediate tanks located at different heights respectively below the heights of the first and second inkjet printheads;a pump for pumping ink from the supply tank into the first intermediate tank;a first level setting device for limiting ink pumped into the first intermediate tank to a first level and for directing additional ink pumped into the first intermediate tank to a first overflow region;a first ink supply line for supplying ink from the first intermediate tank to a first inkjet printhead;an ink transfer line for transferring the overflow ink under gravity from the first overflow region to the second intermediate tank; anda second ink supply line for supplying ink from the second intermediate tank to a second inkjet printhead.2. An ink delivery system as claimed in claim 1 , the level setting device comprising a weir in the first intermediate tank.3. An ink delivery system as claimed in claim 1 , the second intermediate tank having a second level setting device for limiting ink entering into the second tank ...

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Номер записи: 56

07-11-2013 дата публикации

INK COMPOSITION AND RECORDING APPARATUS

Номер: US20130293643A1

Автор: IIDA Keiji, KUBOTA Kenichiro, NAGASE Makoto, NAKAMURA Miho, SAO Akihito, SHINODA Tomoki

Принадлежит: SEIKO EPSON CORPORATION

Disclosed is ink composition used in a recording apparatus provided with a pressure regulation valve which performs opening and closing operations to adjust a pressure in a recording head and is covered with an elastic member. The ink composition includes a slip agent and a lactone system medium. The slip agent is preferably at least one kind selected from a group consisting of a silicon system compound, a hydrocarbon system compound, a fluorine system compound, an amide system compound, and acrylic compound. In addition, the content of the slip agent is preferably not more than 1% by mass. 1. Ink composition used in a recording apparatus provided with a pressure regulation valve which performs opening and closing operations to adjust a pressure in a recording head and is covered with an elastic member , the ink composition comprising:slip agent; anda lactone system medium.2. The ink composition according to claim 1 ,wherein the slip agent is at least one kind selected from a group consisting of a silicon system compound, a hydrocarbon system compound, a fluorine system compound, an amide system compound, and an acrylic compound.4. The ink composition according to claim 1 ,wherein content of the slip agent is not more than 1% by mass.5. The ink composition according to claim 1 ,wherein the lactone system medium is γ-lactone.6. The ink composition according to claim 1 ,wherein the γ-lactone is at least one kind selected from a group consisting of γ-butyrolactone and γ-valerolactone.7. The ink composition according to claim 1 ,wherein the elastic member is at least one kind selected from a group consisting of natural rubber, styrene-butadiene rubber, acrylonitrile-butadiene rubber, chloroprene rubber, neoprene rubber, polyvinyl chloride, polyethylene, polypropylene, acrylonitrilebutadiene, polystyrene, polyamide, polyurethane, silicon resin, epoxy resin, phenol resin, urea resin, and fluorine resin.8. A recording apparatus comprising:{'claim-ref': {'@idref': 'CLM- ...

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Номер записи: 57

05-12-2013 дата публикации

PRINTHEAD UNIT ASSEMBLY FOR USE WITH AN INKJET PRINTING SYSTEM

Номер: US20130321535A1

Автор: KO Alexander Sou-Kang, MAUCK Justin, VRONSKY Eliyahu

Принадлежит: KATEEVA, INC.

Features for various embodiments of a self-contained printhead unit, including an on-board fluidic system, quick-coupling electrical and pneumatic interfacing, in conjunction with the features of various embodiments of a kinematic mounting and air bearing clamping assembly, as well as contactless integration to a waste assembly, together provide for the ready interchangeability of a plurality of printhead units in a printing system during a printing process, while at the same time preventing cross-contamination of a plurality of end-user selected inks contained in each of a plurality of printhead units. 1. A printhead unit for industrial inkjet printing comprising: a pneumatic manifold block assembly proving distribution of control, said pneumatic manifold block including a first surface and a second surface and having a plurality of channels fabricated therein, wherein the pneumatic manifold block is in ported for communication with a manifold component selected from a valve, a reservoir, a vacuum source, and an inert gas source;', 'a fluidic manifold block assembly, said fluidic manifold block assembly comprising a first surface and a second surface and having a plurality of channels fabricated therein, wherein the fluidic manifold block assembly is ported for communication with a manifold component selected from a valve, a reservoir, a printhead, and a waste system; and', 'a primary dispensing reservoir including at least one inlet port and at least one outlet port, wherein the primary dispensing reservoir is in fluid communication with the pneumatic manifold block assembly and the fluidic manifold block assembly;, 'a fluidic system comprisingan electrical interface plate including a first surface for receiving electrical interconnections and a second surface adjoining the first surface of the pneumatic manifold block, wherein the first surface for receiving electrical interconnections is quick-coupling adapted; andan adaptor plate manifold assembly comprising a ...

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Номер записи: 58

19-12-2013 дата публикации

Continuous ink supply apparatus, system and method

Номер: US20130335466A1

Автор: David B. Novak, David N. Olsen

Принадлежит: Hewlett Packard Development Co LP

A continuous ink supply (CIS) apparatus, a CIS printer system and a method of CIS employ a one-way valve having a minimum negative activation pressure. The apparatus includes an off-axis ink supply to source liquid ink to a printhead of a printer. The one-way valve is positioned between the off-axis ink supply and the printhead. The minimum negative activation pressure at a printhead side of the one-way valve is at least enough to substantially precludes drooling from the printhead.

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Номер записи: 59

19-12-2013 дата публикации

Ink cartridge and image forming apparatus

Номер: US20130335481A1

Автор: Honriku Jo

Принадлежит: Ricoh Co Ltd

An image forming apparatus includes an image forming device to form an image and an ink cartridge that includes a deformable ink supply bag having an ink supply port; a deformable waste ink collection bag having a fluid gateway; and a cartridge housing to accommodate the deformable ink supply bag and the deformable waste ink collection bag at the same time. A connecting member having a non-return valve is provided to connect the deformable ink supply bag and the deformable waste ink collection bag with each other at a section other than the ink supply port and the fluid gateway. The non-return valve prevents ink from flowing from the waste ink collection bag into the ink supply bag. A non-return valve control mechanism is provided not to operate the non-return valve in an initial state in which the ink supply bag is initially filled with ink.

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Номер записи: 60

02-01-2014 дата публикации

INK MIXING SYSTEM

Номер: US20140002551A1

Автор: Bostock John, Lye Trevor, Mann Carl, Smith Robert, Stamp Michael

Принадлежит: VIDEOJET TECHNOLOGIES INC.

An ink system of an ink jet printer includes a fluid tank. The fluid tank includes a generally conically shaped side wall, the side wall sloping inwardly from a top portion to a bottom portion. A bottom surface is disposed adjacent the bottom portion of the side wall. A first fluid conduit is disposed in the fluid tank and includes an opening adjacent to and above the bottom surface of the fluid tank. A second fluid conduit is disposed in the fluid tank and includes an opening at a location above the opening of the first fluid conduit. A pump is in fluid communication with the first fluid conduit and the second fluid conduit. An ink supply line is in fluid communication with the pump. A print head is in fluid communication with the ink supply line. 1. An ink system of an ink jet printer comprising: a generally conically shaped side wall, the side wall sloping inwardly from a top portion to a bottom portion; and', 'a bottom surface disposed adjacent the bottom portion of the side wall;, 'a fluid tank comprisinga first fluid conduit disposed in the fluid tank and comprising an opening adjacent to and above the bottom surface of the fluid tank;a second fluid conduit disposed in the fluid tank and comprising an opening at a location above the opening of the first fluid conduit;a pump in fluid communication with the first fluid conduit and the second fluid conduit;an ink supply line in fluid communication with the pump;a print head in fluid communication with the ink supply line; anda return line in fluid communication between the print head and the fluid tank.2. The ink system of further comprising an ink composition comprising a pigment disposed in the fluid tank.3. The ink system of further comprising an ink source in fluid communication with the fluid tank claim 2 , wherein the ink source comprises a pigmented ink composition provided in a cartridge.4. The ink system of wherein the return line allows circulation of a fluid from the supply line to the fluid tank.5. ...

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Номер записи: 61

09-01-2014 дата публикации

System And Method For Measuring Fluid Drop Mass With Reference To Test Pattern Image Data

Номер: US20140009525A1

Автор: Conor D. Kelly, Lisa M. Schmidt, Mark R. Parker

Принадлежит: Xerox Corp

A method measures distances between two printed lines on a rotating image receiving member to identify fluid drop mass or fluid drop velocity changes in inkjet ejectors in an inkjet printing system. An initial distance between the two lines is measured at the start of the operational life of the system. During the operation of the printing system, the lines are reprinted and the distance between the two lines compared to the initial distance stored in association with the printheads that printed the lines. If the distance has changed by more than a predetermined amount, a printer parameter is adjusted.

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Номер записи: 62

09-01-2014 дата публикации

Ink cartridge for ink jet recording apparatus, connection unit and ink jet recording apparatus

Номер: US20140009542A1

Автор: Hisashi Miyazawa, Minoru Usui

Принадлежит: Seiko Epson Corp

An ink cartridge for supplying the ink in an ink reserving chamber via an ink supply port into a recording head has a differential pressure valve mechanism disposed between an ink flow port and the ink supply port in the ink reserving chamber, whereby the ink is supplied an adequate amount to the recording head by opening or closing the differential pressure valve mechanism in accordance with an ink pressure of the recording head. As a result, it is possible to supply the ink at a substantially constant pressure to the recording head without regard to the variation in the amount of ink or the movement of the carriage.

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Номер записи: 63

23-01-2014 дата публикации

Fluid ejecting apparatus and cleaning method

Номер: US20140022315A1

Автор: Daisuke Matsumoto, Kiyoteru Katsuki, Masaru Kobashi, Tomohiro Aruga, Yoichi Yamada

Принадлежит: Seiko Epson Corp

A printer includes: a fluid ejecting head provided with multiple nozzles that eject ink; an ink supply tube that supplies the ink to the fluid ejecting head; and a pressure application mechanism that pressurizes the ink to swell from the nozzles by pressurizing the ink within the ink supply tube and then depressurizes the interior of the ink supply tube while the ink is swelling from the nozzles.

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Номер записи: 64

23-01-2014 дата публикации

FLUID SUPPLY SYSTEMS, METHODS, AND ARTICLES OF MANUFACTURE

Номер: US20140022318A1

Автор: Cameno Alfonso, Cerro Francesc Ros, Gômez Arturo Garcia, Terrasa Marcos Arminana

Принадлежит:

Example fluid supply systems, methods and articles of manufacture are disclosed. A disclosed example fluid supply supply system includes a first receptacle to receive a first fluid supply cartridge, a second receptacle to receive a second fluid supply cartridge, and a selection valve to selectively couple a source of pressurized air to the first and second receptacles to provide a fluid to a printhead, only one of the first and second receptacles being coupled to the source of pressurized air at a time. 1. A fluid supply system comprising:a first receptacle to receive a first fluid supply cartridge;a second receptacle to receive a second fluid supply cartridge; anda selection valve to selectively couple a source of pressurized air to one of the first or second receptacles to provide a fluid to a printhead, only one of the first and second receptacles being coupled to the source of pressurized air at a time.2. The fluid supply system as defined in claim 1 , further comprising a supply controller to select the one of the first and second receptacles based on fluid levels associated with respective ones of the first and second fluid supply cartridges.3. The fluid supply system as defined in claim 1 , further comprising a supply controller to select the one of the first and second receptacles based on which of the first and second fluid supply cartridges is detected.4. The fluid supply system as defined in claim 1 , further comprising a check valve coupled between the first receptacle and the printhead to fluidly decouple the first receptacle from the printhead when the selection valve is to connect the source of pressurized air to the second receptacle.5. The fluid supply system as defined in claim 1 , further comprising a check valve coupled between the first receptacle and the printhead to fluidly couple the first receptacle to the printhead when the selection valve is to connect the source of pressurized air to the first receptacle.6. The fluid supply system as ...

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Номер записи: 65

30-01-2014 дата публикации

LIQUID EJECTING APPARATUS AND METHOD FOR CONTROLLING LIQUID EJECTING HEAD

Номер: US20140028762A1

Автор: Munakata Manabu

Принадлежит: SEIKO EPSON CORPORATION

One of the two flow passages branches from one of two ink cartridges to one of the two discharging portions and one of the two individual discharging portions. The other flow passage branches from the other ink cartridge to the other discharging portion and the other individual discharging portion. A ratio of frequency of use of each of the discharging portions, Ra, and frequency of use of each of the individual discharging portions, Rb, satisfies Ra:Rb=1:1/2. 1. A liquid ejecting apparatus that ejects liquid supplied from a first and second containers to form dots on a printing target , the second container containing a same liquid as that of the first container , the liquid ejecting apparatus comprising:a liquid ejecting head provided with a first group of nozzles and a second group of the nozzles, the first group ejecting the liquid from the first container through a first flow passage, the second group ejecting the liquid from the second container through a second flow passage out of communication with the first flow passage; and each of the first and second group has an individual nozzle and an overlap nozzle, the overlap nozzles overlapping each other in a direction of the scan between the first and second groups, the individual nozzles not overlapping each other in the direction of the scan between the first and second groups, and', 'the controller selectively use the overlap nozzles of the first and second groups to form a dot during one scan., 'a controller adapted to control ejection by the first and second group during scans between the liquid ejecting head and the printing target; wherein'}2. The liquid ejecting apparatus according to claim 1 , wherein each of the group forms dots in line orthogonal to the scan.3. The liquid ejecting apparatus according to claim 1 , wherein each of the first and second containers is replaceable respectively.4. The liquid ejecting apparatus according to claim 1 , wherein each of the first and second containers is ...

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Номер записи: 66

13-02-2014 дата публикации

INKJET RECORDING APPARATUS

Номер: US20140043381A1

Автор: Ishikawa Akira, Itabashi Wataru, Izawa Hideo, NAMIKI Takao

Принадлежит:

An inkjet recording apparatus which can make a distribution tank compact and has excellent pressure-control precision is provided. 1. An inkjet recording apparatus comprising:an inkjet portion having a recording head for applying ink to a recording medium and a distribution tank for supplying ink to the recording head;an ink supply means having a main tank for supplying ink to the distribution tank; andan air supply means having an air chamber communicating with a space in the distribution tank, and a pressure adjustment mechanism provided on the air chamber via a solenoid valve, whereinpressure of the space and internal pressure of the air chamber are equal to each other.2. The inkjet recording apparatus according to claim 1 , wherein the internal volume of the air chamber is larger than the volume of the space.3. The inkjet recording apparatus according to claim 1 , wherein the volume ratio of volume R1 of the space to an internal volume R2 of the air chamber (R1:R2) is in a range of 1:1.28 to 1:73.3.4. The inkjet recording apparatus according to claim 1 , wherein:the ink supply means and the air supply means are contained in a fluid portion; andthe inkjet portion and the fluid portion are separate members.5. The inkjet recording apparatus according to claim 1 , wherein the distribution tank supplies the ink to the recording head via an ink on-off solenoid valve.6. The inkjet recording apparatus according to claim 1 , wherein the main tank supplies ink to the distribution tank via a deaerating module.7. The inkjet recording apparatus according to claim 1 , wherein:the distribution tank is provided with a circulation port; andink in the distribution tank is circulated from the circulation port to the main tank through a circulating flow passage connected to the circulation port.8. The inkjet recording apparatus according to claim 1 , wherein:the recording head includes a plurality of recording head sections;the distribution tank includes a plurality of distribution ...

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Номер записи: 67

13-02-2014 дата публикации

LIQUID EJECTING APPARATUS

Номер: US20140043382A1

Автор: TAMAKI Shuichi

Принадлежит: BROTHER KOGYO KABUSHIKI KAISHA

A liquid ejecting apparatus, including: a tank for storing a liquid; a liquid ejecting head including an inner passage having an inlet, an outlet and individual liquid channels; a supply passage connecting the tank and inlet; a return passage connecting the tank and outlet; a supply device to forcibly supply the liquid in the tank to the inner passage; a restrictor valve to restrict a liquid amount flowing through the return passage; and a controller to drive the supply device while placing the restrictor valve in an open state, where the liquid in the tank returns back thereto via the supply passage, the inner passage, and the return passage, in order, and to drive the supply device to keep circulation and control the restrictor valve to restrict, during the circulation, the amount of the liquid that flows through the return passage, for discharging the liquid from the ejection opening. 1. A liquid ejecting apparatus , comprising:a tank for storing a liquid;a liquid ejecting head including an inner passage having an inlet and an outlet and a plurality of individual liquid channels extending from the inner passage to respective ejection openings;a supply passage which connects the tank and the inlet;a return passage which connects the tank and the outlet;a supply device configured to forcibly supply the liquid in the tank to the inner passage;a restrictor valve configured to restrict an amount of the liquid that flows through the return passage; anda controller configured to drive the supply device while placing the restrictor valve in an open state, such that liquid circulation is conducted in which the liquid in the tank returns back thereto via the supply passage, the inner passage, and the return passage, in order, and configured to drive the supply device to keep the liquid circulation and control the restrictor valve to restrict, during the liquid circulation, the amount of the liquid that flows through the return passage, for discharging the liquid from the ...

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Номер записи: 68

27-02-2014 дата публикации

Liquid Ejecting Apparatus and Maintenance Method Thereof

Номер: US20140055521A1

Автор: Hideya Yokouchi, Hitotoshi Kimura

Принадлежит: Seiko Epson Corp

A liquid ejecting apparatus comprising a liquid ejection head unit having nozzles for ejecting a liquid onto a medium; a liquid storage unit to store the liquid; a first supply passage that communicates with the liquid ejection head unit and the liquid storage unit; a second supply passage that communicates with the liquid ejection head unit, the liquid storage unit, and the first supply passage in the liquid ejection head unit; a valve in the first supply passage; and a liquid driving unit in the second supply passage that moves the liquid in the liquid ejection head unit and the supply passages when driven. The liquid is moved toward the liquid ejection head unit in the second supply passage by the liquid driving unit in a state in which the valve restricts the flow of the liquid such that the liquid is discharged from the nozzles.

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Номер записи: 69

06-03-2014 дата публикации

LIQUID DISCHARGE APPARATUS AND LIQUID DISCHARGING METHOD

Номер: US20140063133A1

Автор: MITSUO Noritaka, NAKASHIMA Hiromichi

Принадлежит: SEIKO EPSON CORPORATION

A liquid discharge apparatus includes an ink tank configured and arranged to retain sedimentary ink, a head configured and arranged to discharge the sedimentary ink, an ink tube configured and arranged to supply the sedimentary ink from the ink tank to the head, and a circulation pump configured and arranged to circulate the sedimentary ink in the ink tube. A connection section between the ink tube and a pipe of the circulation pump is provided at one of a horizontal section of the ink tube and an upper portion of a vertical section of the ink tube. 1. A liquid discharge apparatus comprising:an ink tank configured and arranged to retain sedimentary ink;a head configured and arranged to discharge the sedimentary ink;an ink tube configured and arranged to supply the sedimentary ink from the ink tank to the head; anda circulation pump configured and arranged to circulate the sedimentary ink in the ink tube,wherein a connection section between the ink tube and a pipe of the circulation pump is provided at one of a horizontal section of the ink tube and an upper portion of a vertical section of the ink tube.2. The liquid discharge apparatus according to claim 1 , whereinopening and closing valves provided at an upstream side and a downstream side of the connection section are provided in the ink tube, andthe opening and closing valves are closed when sedimentary ink is circulated in the ink tube using the circulation pump.3. The liquid discharge apparatus according to claim 1 , further comprisinga plurality of ink tubes configured and arranged to retain the sedimentary ink; anda linking tube linking the plurality of ink tubes.4. The liquid discharge apparatus according to claim 3 , whereinthe linking tube connects between the plurality of ink tubes so as to configure one circulation path between the plurality of ink tubes.5. The liquid discharge apparatus according to claim 3 , whereinan inlet pipe and an outlet pipe of the circulation pump are respectively connected to ...

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Номер записи: 70

06-03-2014 дата публикации

Ink supply apparatus

Номер: US20140063139A1

Автор: Masaru Takahashi, Takeshi Iwamuro

Принадлежит: Seiko Epson Corp

An ink supply apparatus includes an ink filling port, an ink storage section, an ink flow path, a displacement section, an ink supply port, and a sealing structure. The ink storage section is communicated with the ink filling port to store the ink. The ink flow path is communicated with the ink storage section. The displacement section defines a portion of the ink flow path, and configured and arranged to be displaced according to internal pressure in the ink flow path so as to be detected by the printer. The ink supply port is communicated with the ink flow path to supply the ink from the ink flow path to the printer. The sealing structure seals an inner section of the ink flow path at least in a low ink remaining amount state where a remaining amount of the ink is a predetermined amount or less.

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Номер записи: 71

06-03-2014 дата публикации

Liquid Storage Container And Liquid Consumption Apparatus

Номер: US20140063140A1

Автор: Kodama Hidetoshi, Shimizu Yoshiaki

Принадлежит: SEIKO EPSON CORPORATION

A liquid storage container comprises a first liquid chamber provided with a filler port, a second liquid chamber partitioned from the first liquid chamber, and communicates with the first liquid chamber via communication opening, and a float member provided in the second liquid chamber. 1. A liquid storage container comprising:a first liquid chamber provided with a filler port;a second liquid chamber partitioned from the first liquid chamber, and communicates with the first liquid chamber via communication opening; anda float member provided in the second liquid chamber.2. The liquid storage container according to claim 1 , further comprising:a plurality of air chamber provided in the float member.3. The liquid storage container according to claim 2 ,wherein the air chamber has a film;wherein the film is positioned at a position where the film is not opposite to the communication opening.4. The liquid storage container according to claim 3 , further comprising:a rib positioned above the float member, and is provided so as to cover the float member.5. The liquid storage container according to claim 4 , further comprising:a liquid channel configured to flow liquid to out of the second liquid chamber through channel opening;a valve configured to be pressed by the float member, to close the liquid channel at closing position; anda filter provided at a position where the ink is so as to flow to the closing position after through the filter.6. The liquid storage container according to claim 5 , further comprising:a regulation case which the float member is inserted, and configured to regulate upward displacement of the float member;wherein the regulation case is notched along a direction of the displacement upward.7. The liquid storage container according to claim 6 ,wherein the regulation case is notched at a position, corresponding to opposite of the film.8. The liquid storage container according to claim 7 ,wherein the regulation case is perforated so as to allow a ...

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Номер записи: 72

27-03-2014 дата публикации

INK SUPPLY SYSTEM AND MEDIA RECORDING DEVICE

Номер: US20140085386A1

Автор: Sung Hung-Huan, Wei Chung-Hsin

Принадлежит:

An ink supply system including a cover, an ink delivery module, delivery pipes and a shut-off valve module, and a media recording device including a body and a print head disposed therein are provided. The cover is pivoted to the body, and the ink delivery module is disposed therein and next to the cover. The shut-off valve module includes a base disposed in the body, an eccentric wheel pivoted to the base, and a linkage connected between the eccentric wheel and the cover. The delivery pipes are connected between the print head and the ink delivery module and they pass between the base and the eccentric wheel. The cover is opened or closed relative to the body and it drives the linkage to drive the eccentric wheel to rotate relative to the base so as to press against or release the delivery pipes. 1. An ink supply system adapted for a media recording device , the media recording device comprising a body and a print head disposed in the body , the ink supply system comprising:a cover pivoted to the body, and the cover is adapted to open relative to the body so as to expose a plurality of elements disposed in the body;an ink delivery module disposed in the body and next to the cover, and the ink delivery module has a plurality of color ink cartridges;a plurality of delivery pipes connected between the print head and the ink delivery module; and a first drive element disposed on the ink delivery module; and', 'a second drive element disposed on at least one of the body and the cover, and the second drive element is linked to the first drive element., 'a drive module, comprising2. The ink supply system of claim 1 , further comprising: a base disposed in the body;', 'an eccentric wheel pivoted to the base; and', 'a linkage connected between the eccentric wheel and the cover, the delivery pipes passing between the base and the eccentric wheel, the cover rotating relative to the body and driving the linkage to drive the eccentric wheel to rotate relative to the base, so ...

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Номер записи: 73

06-01-2022 дата публикации

INK JET RECORDING DEVICE AND RECORDING MEDIUM TEMPERATURE CONTROL METHOD

Номер: US20220001674A1

Автор: HOKAZONO Yutaka

Принадлежит:

An ink jet recording device includes the following. A conveyor conveys a recording medium. A recording operator ejects an ink to cause the ink to land on the recording medium in a middle of a conveyance path of the recording medium conveyed by the conveyor. A reverser returns the recording medium from a first position downstream of a landing position of the ink, which is ejected from the recording operator, to a second position upstream of the landing position along the conveyance path. A first temperature regulator that regulates a temperature of the recording medium in at least a part of a region from the second position to the landing position on the conveyance path. A hardware processor causes the recording operator not to eject the ink while the recording medium initially passes through the landing position. 1. An ink jet recording device comprising:a conveyor that conveys a recording medium;a recording operator that ejects an ink to cause the ink to land on the recording medium in a middle of a conveyance path of the recording medium conveyed by the conveyor;a reverser that returns the recording medium from a first position downstream of a landing position of the ink, which is ejected from the recording operator, to a second position upstream of the landing position along the conveyance path;a first temperature regulator that regulates a temperature of the recording medium in at least a part of a region from the second position to the landing position on the conveyance path; anda hardware processor,wherein the hardware processor causes the recording operator not to eject the ink while the recording medium initially passes through the landing position.2. The ink jet recording device according to claim 1 ,wherein the hardware processor causes the recording operator not to eject the ink onto the recording medium for a predetermined number of times according to a characteristic of the recording medium until the recording medium is returned from the first position ...

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Номер записи: 74

07-01-2021 дата публикации

MULTI-COLOR MULTI-SPEED PRINTING APPARATUS WITH CIRCULATION

Номер: US20210001637A1

Автор: PORTER Christopher Andrew

Принадлежит:

Methods, systems, and devices related to a printer system that includes a first primary ink tank holding a dark-colored ink, a second primary ink tank holding a light-colored ink, a first selector valve configured to change a state, a first secondary ink tank connected to the first primary ink tank via the first selector valve, a second secondary ink tank connected to the first and second primary ink tanks via the first selector valve, a second selector valve connected to the first primary ink tank configured to return the dark-colored ink from the print heads to the first primary ink tank, and a third selector valve connected to the second selector valve and the second primary ink tank configured to either return the light-colored ink from the print heads to the second primary ink tank or to direct the dark-colored ink to the second selector valve. 1. A printer system , comprising , for each of one or more ink color groups:a first primary ink tank holding a dark-colored ink;a second primary ink tank holding a light-colored ink;a first selector valve configured to change a state according to a print mode of the system;a first secondary ink tank connected to the first primary ink tank via the first selector valve, the first secondary ink tank configured to store the dark-colored ink and to provide the dark-colored ink to a first set of print heads;a second secondary ink tank connected to the first and second primary ink tanks via the first selector valve, the second secondary ink tank configured to store either the dark-colored ink or the light-colored ink and to provide the dark-colored ink or the light-colored ink to a second set of print heads according to the state of the first selector valve;a second selector valve connected to the first primary ink tank configured to return the dark-colored ink from the first or the second set of print heads to the first primary ink tank; anda third selector valve connected to the second selector valve and the second primary ...

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Номер записи: 75

07-01-2016 дата публикации

LIQUID SUPPLY UNIT AND LIQUID EJECTION DEVICE

Номер: US20160001567A1

Автор: Kimura Hitotoshi, Okuno Tokujiro

Принадлежит:

A liquid supply unit includes a pressure adjusting valve portion that includes a liquid outlet connectable to an upstream end of a supply passage, which supplies liquid to a liquid ejection head, a liquid inlet that draws in the liquid from a liquid supply source containing the liquid, a pressure chamber at least partially formed by a flexible portion configured to be deformed when the pressure changes, an urging member configured to urge the flexible portion in a direction in which the flexible portion increases a volume of the pressure chamber, and an opening-closing valve configured to allow the liquid to be drawn from the liquid supply source to the pressure chamber through the liquid inlet in accordance with a deformation of the flexible portion. 1. A liquid supply unit configured to be connectable to a supply passage that supplies liquid to a liquid ejection head including a nozzle opening from which the liquid is ejected , the liquid supply unit comprising: a liquid outlet connectable to an upstream end of the supply passage,', 'a liquid inlet that draws in the liquid from a liquid supply source, which contains the liquid,', 'a pressure chamber connected to the liquid outlet and the liquid inlet, wherein the pressure chamber is at least partially formed by a flexible portion configured to be deformed when pressure of the pressure chamber changes,', 'an urging member configured to urge the flexible portion in a direction in which the flexible portion increases a volume of the pressure chamber, and', 'an opening-closing valve configured to allow the liquid to be drawn from the liquid supply source to the pressure chamber through the liquid inlet in accordance with a deformation of the flexible portion., 'a pressure adjusting valve portion that includes'}2. The liquid supply unit according to claim 1 , wherein the pressure adjusting valve portion includes a holder configured to hold the pressure adjusting valve portion on a liquid ejection unit that includes the ...

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Номер записи: 76

07-01-2016 дата публикации

LIQUID EJECTING APPARATUS

Номер: US20160001568A1

Автор: KAMEI Hiroyuki, Kimura Hitotoshi

Принадлежит:

A liquid ejecting apparatus includes a liquid ejecting section that includes a nozzle that ejects a liquid; a supplying path that is capable of supplying the liquid accommodated in a liquid accommodating section to the liquid ejecting section; a pressure adjusting valve that is disposed in the supplying path, and includes a pressure chamber which is capable of storing the liquid, the pressure chamber being is provided with an outlet that draws out the stored liquid to the liquid ejecting section, and when a pressure in the internal portion of the pressure chamber decrease, the pressure adjusting valve being opened to adjust a pressure of the liquid supplied to the liquid ejecting section; a discharging path that connects to a communicating port which communicates with the pressure chamber in a separate position different from a position of the outlet; and a switching valve that is provided in the discharging path. 1. A liquid ejecting apparatus comprising:a liquid ejecting section that includes a nozzle that ejects a liquid;a supplying path that is capable of supplying the liquid accommodated in a liquid accommodating section to the liquid ejecting section;a pressure adjusting valve that is disposed in the supplying path, and includes a pressure chamber which is capable of storing the liquid, wherein the pressure chamber is provided with an outlet that draws out the stored liquid to the liquid ejecting section, and wherein when the liquid is drawn out of the outlet to the liquid ejecting section to thereby cause a pressure in the internal portion of the pressure chamber to decrease, the pressure adjusting valve is opened to cause the supplying path and the pressure chamber to communicate with each other and thereby adjusts a pressure of the liquid supplied to the liquid ejecting section;a discharging path that connects to a communicating port which communicates with the pressure chamber in a separate position different from a position of the outlet; anda switching ...

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Номер записи: 77

04-01-2018 дата публикации

LIQUID DISCHARGE APPARATUS, IMPRINT APPARATUS AND PART MANUFACTURING METHOD

Номер: US20180001652A1

Автор: ARAI Tsuyoshi, Araki Yoshimasa, Ishibashi Tohru, Mita Yutaka, Takahashi Yuichi

Принадлежит:

A liquid discharge apparatus comprises a head including a discharge port surface, a first reservoir that stores the liquid to be supplied to the head, a flexible member, separating an inner space of the first reservoir into a first chamber that stores the liquid and a second chamber that stores an operation liquid, a second reservoir communicating with the second chamber, the second reservoir storing the operation liquid to be supplied to the second chamber, the second reservoir being disposed in such a manner that a liquid surface of the operation liquid stored in the second reservoir is positioned below the discharge port surface, and an adjustment unit that performs adjustment in such a manner that a position of the liquid surface of the operation liquid in the second reservoir falls within a predetermined range in a state where the second reservoir is opened to atmosphere. 124.-. (canceled)25. A liquid discharge apparatus , comprising:a head including a discharge port surface on which a discharge port is formed to discharge a first liquid;a first reservoir that stores the first liquid to be supplied to the head;a flexible member, separating an inner space of the first reservoir into a first chamber that stores the first liquid and a second chamber that stores a second liquid;a second reservoir that stores the second liquid to be supplied to the second chamber;a first flow path that communicates the second chamber with the second reservoir;a second flow path that communicates the second reservoir with the second chamber; anda circulation unit that circulates the second liquid between the second reservoir and the second chamber through the first flow path and the second flow path.26. A liquid discharge apparatus according to claim 25 , wherein the second reservoir is disposed in such a manner that a liquid surface of the second liquid stored in the second reservoir is positioned below the discharge port surface.27. A liquid discharge apparatus according to claim ...

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Номер записи: 78

04-01-2018 дата публикации

LIQUID SUPPLY DEVICE, LIQUID EJECTION DEVICE, AND CONTROL METHOD FOR PUMP

Номер: US20180001654A1

Автор: ONISHI Yasunori, Ozawa Takashi

Принадлежит: SEIKO EPSON CORPORATION

A liquid supply device includes: a force sensor which outputs an output value corresponding to a force of expansion of a detection target site of a blockage detection tube communicating with a liquid election unit for ejecting a liquid; a pump for sending out a liquid in the blockage detection tube toward the liquid ejection unit; and a control unit which stops an operation of the pump when the output value reaches a threshold. The control unit decides the threshold, using, as a reference value, the output value acquired when a predetermined condition is satisfied including that the detection target site is filled with the liquid and that the pump is stopped. 1. A liquid supply device comprising:a force sensor which outputs an output value corresponding to a force of expansion of a detection target site of a blockage detection tube communicating with a liquid ejection unit for ejecting a liquid;a pump for sending out a liquid in the blockage detection tube toward the liquid ejection unit; anda control unit which stops an operation of the Dump when the output value reaches a threshold,wherein the control unit decides the threshold, using, as a reference value, the output value acquired when a predetermined condition is satisfied including that the detection target site is filled with the liquid and that the pump is stopped.2. The liquid supply device according to claim 1 , whereinthe liquid ejection unit includes a liquid chamber arranged downstream from the blockage detection tube, andthe control unit acquires the reference value when a second condition is satisfied including that the liquid chamber is filled with a liquid, in addition to the predetermined condition.3. The liquid supply device according to claim 2 , whereinthe liquid election unit includes an ejection tube for ejecting a liquid passed through the liquid chamber, andthe control unit acquires the reference value when the liquid has reached a distal end of the election tube, in addition to the second ...

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Номер записи: 79

04-01-2018 дата публикации

Valve unit, printing apparatus, and printing method

Номер: US20180001655A1

Автор: Ryotaro MATSUYAMA

Принадлежит: Seiko Epson Corp

Provided are a valve unit, a printing apparatus, and a printing method capable of preventing sediment arising in the valve unit from flowing toward a discharge unit. The valve unit is used in a printing apparatus including a reservoir unit that holds ink, a discharge unit configured to discharge the ink, and a flow channel that connects the reservoir unit to the discharge unit and through which the ink flows from the reservoir unit to the discharge unit. The valve unit is disposed partway along the flow channel, and includes: a first chamber that configured to communicate with the reservoir unit; a second chamber configured to communicate with the discharge unit; a switching valve that switches between allowing and cutting off a flow of ink from the first chamber to the second chamber; and an expelling unit configured to expel sediment from the second chamber by suctioning the sediment.

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Номер записи: 80

02-01-2020 дата публикации

ACTUATORS FOR FLUID DELIVERY SYSTEMS

Номер: US20200001607A1

Автор: Liu Wayne, MENZEL Christoph, Ottoson Mats G., Sugimoto Shinya

Принадлежит:

An apparatus includes a reservoir and a printhead. The printhead includes a support structure including a deformable portion defining at least a top surface of a pumping chamber, a flow path extending from the reservoir to the pumping chamber to transfer fluid from the reservoir to the pumping chamber, and an actuator disposed on the deformable portion of the support structure. A trench is defined in a top surface of the actuator. Application of a voltage to the actuator causes the actuator to deform along the trench, thereby causing deformation of the deformable portion of the support structure to eject a drop of fluid from the pumping chamber. 132-. (canceled)33. A printhead comprising:a support structure comprising a deformable portion defining at least a top surface of a pumping chamber; andan actuator disposed on the deformable portion of the support structure, wherein a trench is defined in a top surface of the actuator, the trench defining at least a portion of a loop offset inwardly from an outer perimeter of the deformable portion.34. The printhead of claim 33 , wherein application of a voltage to the actuator causes the actuator to deform along the trench claim 33 , thereby causing deformation of the deformable portion to eject a drop of fluid from the pumping chamber.35. The printhead of claim 33 , comprising multiple radial trenches each extending radially outward away from a central region of the top surface of the actuator.36. The printhead of claim 35 , wherein each of the radial trenches is oriented perpendicular to the trench at a point where the radial trench meets the trench.37. The printhead of claim 33 , wherein a distance between the trench and the outer perimeter of the deformable portion is greater than a distance between the trench and a central region of the top surface of the deformable portion.38. The printhead of claim 33 , wherein a distance between the trench and the outer perimeter of the deformable portion is less than a distance ...

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Номер записи: 81

03-01-2019 дата публикации

LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS

Номер: US20190001671A1

Автор: Nakagawa Yoshiyuki, Nakakubo Toru, Okushima Shingo, Yamada Kazuhiro

Принадлежит:

A liquid ejecting head has a laminated flow path member on which a supply flow path for individually supplying a plurality of liquids to an element substrate and a collection flow path for individually collecting the liquids are formed. The supply flow path includes a first common supply flow path for horizontally leading a first liquid and a second common supply flow path for horizontally leading a second liquid to positions corresponding to a plurality of element substrates. The first and second common supply flow paths are formed in the same layer of the laminated flow path member. The collection flow path includes a first common collection flow path for horizontally collecting the first liquid and a second common collection flow path for horizontally collecting the second liquid from positions corresponding to the plurality of element substrates. The first and second common collection flow paths are formed in the same layer of the laminated flow path member. 1. A liquid ejecting head comprising:an element substrate having ejecting elements for ejecting a first liquid and ejecting elements for ejecting a second liquid arrayed thereon; anda laminated flow path member formed by laminating a plurality of layers, the laminated flow path member having a supply flow path for individually supplying the first liquid and the second liquid to the element substrate and a collection flow path for individually collecting the first liquid and the second liquid from the element substrate, wherein the supply flow path includes in part a first common supply flow path for leading the first liquid to positions corresponding to a plurality of the element substrates and a second common supply flow path for leading the second liquid to positions corresponding to the plurality of element substrates, the first common supply flow path and the second common supply flow path being formed in a same layer of the plurality of layers forming the laminated flow path member, andthe collection ...

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Номер записи: 82

03-01-2019 дата публикации

DUAL REGULATOR PRINT MODULE

Номер: US20190001686A1

Автор: DeVries Mark A., Keefe Brian J., Ring James W., Scheffelin Joseph E.

Принадлежит: HEWLETI-PACKARD DEVELOPMENT COMPANY, L.P.

A print module may include a printhead die. The printhead die may include a chamber layer having ink chambers and micro-channels formed in the chamber layer. The print module may further include a die carrier including manifold passages through which ink flows to and from the printhead die and dual pressure regulators to flow fluid through the micro-channels of the printhead die. 1. A print module comprising:a printhead die, the printhead die including a chamber layer having ink chambers, the printhead die further including micro-channels formed in the chamber layer;a die carrier including manifold passages through which ink flows to and from the printhead die; anddual pressure regulators to flow fluid through the micro-channels of the printhead die.2. The print module of claim 1 , further comprising a bypass gap at a backside of the die to circulate fluid behind the die via the manifold passages in the die carrier.3. The print module of claim 1 , further comprising:first and second fluid slots formed in the die; andthird and fourth fluid slots formed in the die, wherein the first and second fluid slots are connected by the first one of the micro-channels and wherein the third and fourth fluid slots are connected by a second one of the micro-channels.4. The print module of claim 1 , wherein the dual pressure regulators comprise an input regulator and wherein the input regulator comprises a normally closed valve in a pressure-controlled housing configured to open when pressure in the housing falls below a setpoint pressure.5. The print module of claim 1 , wherein the dual pressure regulators comprise an output regulator and wherein the output regulator comprises a normally open valve in a pressure-controlled housing configured to close when pressure in the housing falls below a setpoint pressure.6. The print module of claim 5 , wherein the output regulator comprises a check valve to prevent fluid backflow into the output regulator.7. The print module of claim 1 , ...

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Номер записи: 83

03-01-2019 дата публикации

LIQUID DISCHARGING HEAD, LIQUID DISCHARGING APPARATUS, AND MANUFACTURING METHOD OF LIQUID DISCHARGING APPARATUS

Номер: US20190001687A1

Автор: Hagiwara Hiroyuki, Okubo Katsuhiro, SATO Hisashi, Sato Masahiko

Принадлежит:

A liquid discharging head includes an external cover portion which is connected to a liquid discharging apparatus and which discharges a liquid from a nozzle, in which the external cover portion includes a first gas hole for communicating a first gas flow path which is provided inside the external cover portion with an atmosphere, a second gas hole for carrying a gas between a second gas flow path which is provided inside the external cover portion and the liquid discharging apparatus, and a first liquid hole for carrying the liquid between a liquid flow path which is provided inside the external cover portion and the liquid discharging apparatus, and in which the first gas hole and the second gas hole are disposed separately in the external cover portion. 1. A liquid discharging head which includes an external cover portion which is connected to a liquid discharging apparatus and which discharges a liquid from a nozzle , a first gas hole for communicating a first gas flow path which is provided inside the external cover portion with an atmosphere,', 'a second gas hole for carrying a gas between a second gas flow path which is provided inside the external cover portion and the liquid discharging apparatus, and', 'a first liquid hole for carrying the liquid between a liquid flow path which is provided inside the external cover portion and the liquid discharging apparatus, and, 'wherein the external cover portion includes'}wherein the first gas hole and the second gas hole are disposed separately in the external cover portion.2. The liquid discharging head according to claim 1 ,wherein the external cover portion includes a first surface, andwherein the second gas hole and the first liquid hole are disposed on the first surface.3. The liquid discharging head according to claim 2 ,wherein the second gas hole and the first liquid hole are arranged on a straight line.4. The liquid discharging head according to claim 1 ,wherein a level difference is provided between the ...

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Номер записи: 84

03-01-2019 дата публикации

LIQUID DISCHARGE APPARATUS AND CONTROL METHOD OF LIQUID DISCHARGE APPARATUS

Номер: US20190001689A1

Автор: ISHIDA Yukimasa, MATSUOKA Hironori

Принадлежит:

A liquid discharge apparatus including a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid, a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head, and a controller that restricts drive of the drive element in accordance with a pressure condition in the liquid discharge head. 1. A liquid discharge apparatus comprising:a liquid discharge head that discharges a liquid by vibrating a vibration plate by a drive element and changing a pressure in an internal space filled with the liquid;a pressurization supply unit that forcibly feeds the liquid into the liquid discharge head; anda controller that performs control of either of (A) or (B) below in accordance with a pressure condition in the liquid discharge head,(A) restrict drive of the drive element in accordance with the pressure condition in the liquid discharge head, or(B) reduce a pressure of the liquid in accordance with the pressure condition in the liquid discharge head.2. The liquid discharge apparatus according to claim 1 , further comprising:a valve apparatus that opens/closes according to pressure in the liquid discharge head in a flow path between the pressurization supply unit and the liquid discharge head,wherein the liquid is supplied to the liquid discharge head when the valve apparatus opens, andthe controller performs control of either of the (A) or the (B) when liquid leakage occurs in the valve apparatus.3. The liquid discharge apparatus according to claim 2 , whereinthe drive element discharges the liquid when a drive waveform is inputted, andthe control of the (A) is control of restricting the drive waveform from being inputted into the drive element.4. The liquid discharge apparatus according to claim 2 , whereinthe drive element discharges the liquid when a drive waveform is inputted, andthe control of the (A) is control of reducing a discharge ...

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Номер записи: 85

03-01-2019 дата публикации

LIQUID EJECTION HEAD AND RECORDING APPARATUS

Номер: US20190001691A1

Автор: Inada Genji, Iwano Takuya, Kondo Soji, Nabeshima Naozumi, Nagai Noriyasu

Принадлежит:

Element substrate has ejection ports for ejecting liquid, pressure chambers for storing the liquid to be ejected from the ejection ports, liquid supply paths for supplying liquid to the pressure chambers and liquid recovery paths for recovering liquid from the pressure chambers. The filter chambers have respective filters for seizing foreign objects contained in liquid. Liquid is forced to flow from downward to upward relative to the filters 1. A page wide type liquid ejection head comprising a plurality of element substrates being arranged in the liquid ejection head , each of the element substrates having an ejection port for ejecting liquid , a pressure chamber equipped in the inside thereof with an energy generating element which generates energy for ejecting liquid , a supply flow path for supplying liquid to the pressure chamber and a recovery flow path for recovering liquid from the pressure chamber ,wherein, in a supply flow path for supplying liquid to the element substrates, a filter chamber having a filter for catching a foreign object contained in liquid is provided, in operation, the filter being arranged to intersect the vertical direction, the liquid being driven to flow from downward to upward relative to the filter.2. The liquid ejection head according to claim 1 , whereinthe filter is arranged such that the long side of the filter extend along the longitudinal direction of the liquid ejection head.3. The liquid ejection head according to claim 1 , whereinthe filter is arranged such that the long side of the filter is obliquely disposed relative to the longitudinal direction of the liquid ejection head.4. The liquid ejection head according to claim 3 , whereinthe filter chamber has a connection port arranged at a side thereof in the longitudinal direction, the connection port being supplied with liquid; andthe filter is arranged such that a side thereof closest to the respective connection port in the longitudinal direction is arranged is located ...

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Номер записи: 86

03-01-2019 дата публикации

INKJET RECORDING APPARATUS

Номер: US20190001696A1

Автор: Abe Takashi, Arai Ryoma, Okude Kyoshiro, Tokisawa Toshiaki

Принадлежит:

An inkjet recording apparatus includes a recording head, an ink tank, a supply flow path, a supply pump located in the supply flow path, a collection flow path, a relief flow path connecting a first position in the supply flow path to a second position in the supply flow path, wherein the first position is located at a downstream side of the supply pump in the supply flow path and the second position located at an upstream side of the supply pump in the supply flow path, and a differential pressure regulating valve located in the relief flow path and configured to, in a case where the pressure of the pumped ink in the supply flow path is larger than a predetermined value, open the relief flow path so as to allow ink in the supply flow path to flow from the first position to the second position. 1. An inkjet recording apparatus comprising:a recording head configured to eject ink;an ink tank configured to store ink to be supplied to the recording head;a supply flow path configured to supply ink from the ink tank to the recording head;a supply pump located in the supply flow path and configured to pump ink in the supply flow path;a collection flow path configured to collect ink from the recording head and supply it to the ink tank;a relief flow path connecting a first position in the supply flow path to a second position in the supply flow path, wherein the first position is located at a downstream side of the supply pump in the supply flow path and the second position located at an upstream side of the supply pump in the supply flow path; anda differential pressure regulating valve located in the relief flow path and configured to, in a case where the pressure of the pumped ink the supply flow path is larger than a predetermined value, open the relief flow path so as to allow ink in the supply flow path to flow from the first position to the second position.2. The inkjet recording apparatus according to claim 1 , further comprising a collection pump which is located ...

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Номер записи: 87

03-01-2019 дата публикации

LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS AND METHOD OF MANUFACTURING LIQUID EJECTION HEAD

Номер: US20190001697A1

Автор: Aoki Takatsuna, Furukawa Masao, Horie Asuka, Iwanaga Shuzo, Karita Seiichiro, Mori Tatsurou, Nagai Noriyasu, Okushima Shingo, Saito Akio, Tamenaga Zentaro, Yamada Kazuhiro, YAMAMOTO Akira

Принадлежит:

A liquid ejection head has a plurality of ejection modules having a recording element substrate equipped with a plurality of ejection orifices for ejecting a liquid, a plurality of first flow path members that supports at least one of the ejection modules and a second flow path member provided in common to the first flow path members and supporting the first flow path members. The first flow path members and the second flow path member are equipped with a flow path for supplying a plurality of recording element substrates with a liquid. The first flow path members are joined with the second flow path member via an adhesive layer without being brought into direct contact with each other. 1. A liquid ejection head comprising:a plurality of ejection modules having a recording element substrate equipped with a plurality of ejection orifices for ejecting a liquid;a plurality of first flow path members that support at least one of the ejection modules; anda second flow path member provided in common to the first flow path members and supporting the first flow path members;wherein the first flow path members and the second flow path member are equipped with a flow path for supplying the recording element substrate with the liquid and the first flow path members are joined with the second flow path member via an adhesive layer without being brought into direct contact with each other.2. The liquid ejection head according to claim 1 , wherein the ejection module has the recording element substrate and a support member claim 1 , for supplying the recording element substrate with the liquid supplied via the first flow path members claim 1 , that supports the recording element substrate.3. The liquid ejection head according to claim 2 , wherein the recording element substrate and the support member are joined via an adhesive layer without being brought into direct contact with each other.4. The liquid ejection head according to claim 2 , wherein the support member and the first ...

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Номер записи: 88

03-01-2019 дата публикации

LIQUID EJECTING MODULE

Номер: US20190001699A1

Автор: Nakagawa Yoshiyuki, Nakakubo Toru, Yamada Kazuhiro, Yamazaki Takuro

Принадлежит:

The present invention provides a liquid ejecting module capable of performing stable ejection operation while circulating and supplying fresh ink to the vicinity of ejection ports arranged in high density. To achieve this, a liquid ejecting module includes an element arranged face in which a plurality of ejecting elements are arranged, a circulation flow path including a supply flow path which supplies liquid to a pressure chamber and a collection flow path which collects liquid from the pressure chamber, and a liquid delivery mechanism provided in the circulation flow path for circulating liquid in the pressure chamber. The liquid delivery mechanism is located lower than the element arranged face. 2. The liquid ejecting module according to claim 1 , wherein the liquid delivery mechanism is claim 1 , in a case where the liquid ejecting module is viewed from a side opposing the ejection port claim 1 , disposed at an area that overlaps with an area where the plurality of ejecting elements are arranged on the element arranged face.3. The liquid ejecting module according to claim 1 , whereinthe circulation flow path further includes a connection flow path which connects the collection flow path and the supply flow path and which is not via the pressure chamber, andthe liquid delivery mechanism is provided in the connection flow path to make liquid flow from the collection flow path to the supply flow path.4. The liquid ejecting module according to claim 3 , whereinthe liquid delivery mechanism is provided on a second substrate which differs from a first substrate on which the energy generating element is formed at a position facing a rear face of a face of the first substrate on which the energy generating element is formed.5. The liquid ejecting module according to claim 3 , whereinthe liquid delivery mechanism is provided on a first substrate on which the energy generating element is formed at a rear face of a face on which the energy generating element is formed.6. ...

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Номер записи: 89

13-01-2022 дата публикации

Electrically Powered and Electronically Controlled Diaphragm Ink Pump Apparatus and Method

Номер: US20220010789A1

Автор: FULLEM Thad, Schlothauer Aaron

Принадлежит: SUN AUTOMATION, INC.

An electrically powered and electronically controlled diaphragm ink pump apparatus (e.g., or ) and method for synchronous pressurization of ink in a corrugated board sheet feeding system comprises a diaphragm pump assembly including a reciprocating electrically driven crank mechanism connected to and driving first and second diaphragms or diaphragm surfaces, each diaphragm or diaphragm surface housed within a pump housing (e.g., or ) having an ink inlet and an ink outlet in fluid communication with a manifold configured for pumping liquid ink to printing sections of a corrugated paperboard finishing machine and provide a smooth reciprocating action and more uniform ink flow with reduced pressure pulsations. 1100200. An electrically powered and electronically controlled diaphragm ink pump apparatus (e.g. , or ) configured to economically and reliably pump viscous ink to printing sections of a paperboard (e.g. , corrugated paperboard) finishing machine , comprising:a diaphragm pump assembly including a reciprocating electrically driven crank mechanism connected to and driving first and second diaphragms, each of said diaphragms being housed within a dedicated first and second pump housing chamber, each of said first and second pump housing chambers having an ink inlet and an ink outlet in fluid communication with a manifold configured for pumping liquid ink to printing sections of a paperboard finishing machine;said diaphragm pump assembly first and second diaphragms being driven by an electrically driven reciprocating crank mechanism including a crank shaft to push and pull each of said first and second diaphragm heads to intake and expel liquid ink from said first and second first and second pump housing chambers;{'b': 219', '219, 'wherein said cranks are timed or aligned to operate a selected angle (e.g., 180 or 360 degrees) apart to control timing of ink flow pressure pulses, optionally so that when said first diaphragm head (e.g., A) is intaking liquid ink, said ...

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Номер записи: 90

20-01-2022 дата публикации

LIQUID EJECTING APPARATUS AND MAINTENANCE METHOD OF LIQUID EJECTING APPARATUS

Номер: US20220016888A1

Автор: Iwamuro Takeshi, Kimura Hitotoshi, SHINODA Tomoki

Принадлежит:

A liquid ejecting apparatus includes a liquid ejecting portion that has a supply port, a second discharge port, a plurality of nozzles, and a nozzle surface on which a plurality of the nozzles are open, and that discharges the liquid from the nozzles, a liquid supply flow path coupled to the supply port so that the liquid is supplied to the liquid ejecting portion, and a liquid return flow path coupled to the second discharge port so that the liquid supplied to the liquid ejecting portion is returned to the liquid supply flow path, in which a pressure lowering operation of lowering a pressure in the liquid ejecting portion is performed in a state where a flow of the liquid in the liquid return flow path is blocked after performing a pressurization discharge operation of pressurizing the liquid in the liquid ejecting portion and discharging the liquid from the nozzle. 1. A liquid ejecting apparatus comprising:a liquid ejecting portion that has a supply port through which a liquid flows in, a discharge port through which the liquid flows out, a common flow path communicating with the supply port and the discharge port, an individual liquid chamber communicating with the common flow path, a nozzle communicating with the individual liquid chamber, a nozzle surface on which a plurality of the nozzles are open, and a discharge element, and that discharges the liquid in the individual liquid chamber from the nozzle toward a medium by driving the discharge element;a liquid supply flow path coupled to the supply port so that the liquid is supplied to the liquid ejecting portion;a liquid return flow path coupled to the discharge port so that the liquid supplied to the liquid ejecting portion is returned to the liquid supply flow path;a pressurization mechanism that pressurizes the liquid in the liquid ejecting portion;a return valve provided in the liquid return flow path and configured to take a valve-closed state blocking a flow of the liquid and a valve-opened state ...

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Номер записи: 91

08-01-2015 дата публикации

INKJET RECORDING DEVICE, COMPUTER PROGRAM FOR CONTROLLING THE SAME, AND METHOD OF USING THE SAME

Номер: US20150009264A1

Автор: HIRANO Taeko

Принадлежит:

An inkjet printer () has an ink tank (), an ink head (), an ink supply tube () configured to supply ink from the ink tank () to the ink head (), an ink return tube () one end of which is connected to an upstream side portion of the ink supply tube () and the other end of which is connected to a downstream side portion of the ink supply tube (), and a pump () configured to circulate the ink in the ink supply tube () and the ink return tube (). 1. An inkjet recording device comprising:at least one first ink supply system including:a first ink tank configured to store ink;a first ink head configured to eject the ink;a first ink supply path including an upstream end connected to the first ink tank and a downstream end connected to the first ink head, the first ink supply path connecting the first ink tank and the first ink head to each other;a first ink return path including a first end and a second end, both of the first end and the second end being connected to the first ink supply path; anda pump configured to circulate the ink through the first ink supply path and the first ink return path, andthree or more second ink supply systems each including:a second ink tank configured to store ink;a second ink head configured to eject the ink; anda second ink supply path including an upstream end connected to the second ink tank and a downstream end connected to the second ink head, the second ink supply path connecting the second ink tank and the second ink head to each other,wherein, each of the second ink supply systems comprises no second ink return path that includes a first end and a second end that are both connected to the second ink supply path, and no pump configured to circulate the ink through the second ink supply path and the second ink return path,wherein, the first ink supply system and the second ink supply systems are arranged between a first position and a second position in a predetermined direction,wherein, the first ink supply system and at least one of ...

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Номер записи: 92

12-01-2017 дата публикации

INK TANK UNIT, INK JET PRINTER, AND INK TANK

Номер: US20170008298A1

Автор: AKIMOTO Keisuke, IIZAWA Keigo, KANAYA Munehide, Kanazawa Masayuki, Kawamura Satoshi, Kimura Naomi, Kudo Shoma, Mimura Naofumi, NISHI Nobuyuki, Okawa Soshi, Suzuki Hidenao, TAKAKURA Ryusuke

Принадлежит:

An ink tank includes a tank main body that is able to contain ink, an ink filling unit that is provided in the tank main body and has an opening which enables the tank main body to be filled with the ink, and a plurality of ribs that are provided around the ink filling unit of the tank main body and protrude from the tank main body. A clearance in which the ink is held due to a capillary force between the ribs is provided between two adjacent ribs among the plurality of ribs. 1. An ink tank comprising:a tank main body that is able to contain ink;an ink filling unit that is provided in the tank main body and has an opening which enables the tank main body to be filled with the ink; anda plurality of ribs that are provided around the ink filling unit of the tank main body and protrude from the tank main body,a clearance in which the ink is held due to a capillary force between the ribs being provided between two adjacent ribs among the plurality of ribs.2. The ink tank according to claim 1 ,wherein the two adjacent ribs extend in the same direction as each other.3. The ink tank according to claim 1 ,wherein the plurality of ribs are disposed in a grid shape.4. The ink tank according to claim 1 ,wherein the plurality of ribs are provided radially around the opening in a plan view of the opening.5. The ink tank according to claim 1 ,wherein the ink filling unit has a side wall which surrounds the opening and protrudes from the tank main body, andat least a part of the ribs among the plurality of ribs are connected to the side wall.6. An ink tank comprising:a tank main body that is able to contain ink;an ink filling unit that is provided in the tank main body and has an opening which enables the tank main body to be filled with the ink;a first ink chamber that is provided in the tank main body and communicates with the ink filling unit;a recessed section provided on a peripheral section of the ink filling unit in the tank main body; anda second ink chamber that is ...

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Номер записи: 93

14-01-2016 дата публикации

INK TANK UNIT, INK JET PRINTER, AND INK TANK

Номер: US20160009096A1

Автор: AKIMOTO Keisuke, IIZAWA Keigo, KANAYA Munehide, Kanazawa Masayuki, Kawamura Satoshi, Kimura Naomi, Kudo Shoma, Mimura Naofumi, NISHI Nobuyuki, Okawa Soshi, Suzuki Hidenao, TAKAKURA Ryusuke

Принадлежит:

An ink tank unit includes: an ink tank that is able to contain ink; an ink filling unit that is provided in a case of the ink tank and has an opening which enables the ink tank to be filled with the ink; and a second case that covers at least a part of a peripheral section of the ink filling unit, of a fifth wall of the case on which the ink filling unit is provided. A recessed section and a side wall which enables the ink to be guided to the recessed section are provided on at least one section of the peripheral section of the fifth wall and a section of the second case, which faces the peripheral section. 1. An ink tank unit comprising:a tank main body that is able to contain ink;an ink filling unit that is provided in the tank main body and has an opening which enables the tank main body to be filled with the ink; anda case member that covers at least a part of a peripheral section of the ink filling unit, of a wall of the tank main body on which the ink filling unit is provided,wherein an ink receiving section and an ink guide path which enables the ink to be guided to the ink receiving section are provided on at least one section of the peripheral section of the ink filling unit in the wall of the tank main body and a section of the case member, which faces the peripheral section.2. The ink tank unit according to claim 1 ,wherein the ink receiving section is provided on at least a part of the peripheral section of the ink filling unit in the wall of the tank main body,wherein a first wall section is provided on the case member and extends toward the ink receiving section, andwherein the ink guide path is configured of the first wall section.3. The ink tank unit according to claim 2 ,wherein the ink filling unit has a cylindrical side wall which surrounds the opening,wherein the side wall is provided to protrude from the wall of the tank main body,wherein the ink receiving section is provided on the outer side from the side wall in a plan view of the opening, ...

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Номер записи: 94

14-01-2016 дата публикации

LIQUID RETAINER

Номер: US20160009101A1

Автор: ARUGA Yoshiharu, KUMAGAI Toshio, Matsumoto Hitoshi

Принадлежит: SEIKO EPSON CORPORATION

Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve. 1. A liquid injecting apparatus equipped with a liquid storing member , which stores liquid; a liquid injecting head , which injects liquid; a liquid supply passage , for supplying said liquid to the liquid injecting head from the liquid storing member; and a valve unit , which is provided in the liquid supply passage , the valve unit having:a supply chamber, into which liquid to be supplied from the liquid storing member flows;a pressure chamber, in which liquid to be led out to the liquid injecting head is stored; anda valve, which connects the supply chamber to the pressure chamber by a negative pressure generated in the pressure chamber as the liquid is injected from the liquid injecting head,wherein the supply chamber has a supply chamber opening through which the liquid is supplied from the supply chamber to the pressure chamber, andwherein the valve selectively opens and closes the supply chamber opening.2. The liquid injecting apparatus according to claim 1 , wherein the pressure chamber has an outer wall which is displaced based on the negative pressure claim 1 , and the displacement of the outer wall is transmitted to the valve.3. The liquid injecting apparatus according to claim 1 , wherein the valve unit has an urging member claim 1 , which urges the valve in a direction to ...

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Номер записи: 95

14-01-2016 дата публикации

COMPACT PINCH VALVE

Номер: US20160009102A1

Автор: Balala Rommel, Dyer Geoffrey Philip, Jayatileke Saminda, Knight Paul Charles, Sanaei Kianoush Mir

Принадлежит:

A pinch valve includes first and second pinch arms pivotally mounted about respective pivot axes. A spring interconnects the first and second pinch arms to mutually bias the pinch arms towards each other and provide a pinching force for pinching respective first and second conduits. A cam engages with each of the pinch arms and provides an unpinching force for either one of the pinch arms against the bias of the sprint. 1. A pinch valve comprising:a body;a cam rotatably mounted on the body about a cam axis;a first pinch arm pivotally mounted on the body about a first pivot axis parallel with the cam axis, the first pinch arm comprising a first cam follower for engagement with the cam and a first pinch element for pinching a first conduit, the first conduit being positioned between the first pinch element and the cam axis;a second pinch arm pivotally mounted on the body about a second pivot axis parallel with the cam axis, the second pinch arm comprising a second cam follower for engagement with the cam and a second pinch element for pinching a second conduit, the second conduit being positioned between the second pinch element and the cam axis; anda resilient element interconnecting the first and second pinch arms between respective first and second spring mount locations, the resilient element mutually biasing the first and second pinch arms towards each other,wherein the resilient element provides a pinching force for pinching the first and second conduits.2. The pinch valve of claim 1 , wherein the resilient element comprises a tension spring.3. The pinch valve of claim 1 , wherein the body comprises first and second anvils claim 1 , and wherein the resilient element provides a pinching force on a first conduit positioned between the first anvil and the first pinch element and a pinching force on a second conduit positioned between the second anvil and the second pinch element.4. The pinch valve of claim 1 , wherein the first and second pinch arms are ...

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Номер записи: 96

11-01-2018 дата публикации

SHAPING DEVICE, SHAPING METHOD, AND SHAPING SYSTEM

Номер: US20180009230A1

Автор: Ochi Kazuhiro, Ohnishi Masaru

Принадлежит: MIMAKI ENGINEERING CO., LTD.

A shaping device, that shapes a three-dimensional object, includes an ink jet head that discharges an ink to become a material of shaping; and an ink supplying unit that supplies a pre-toned ink, which is the ink toned in advance in accordance with a color to be colored on the 3D object, to the ink jet head, where the ink jet head forms at least one part of the 3D object while coloring the one part with the color of the pre-toned ink by discharging the pre-toned ink. 1. A shaping device that shapes a three-dimensional object , the shaping device comprising:an ink jet head that discharges an ink to become a material of shaping; andan ink supplying unit that supplies a pre-toned ink, which is the ink toned in advance in accordance with a color to be colored on the three-dimensional object, to the ink jet head, whereinthe ink jet head forms at least one part of the three-dimensional object while coloring the at least one part with the color of the pre-toned ink by discharging the pre-toned ink.2. The shaping device according to claim 1 , wherein the at least one part of the three-dimensional object is formed using only the pre-toned ink.3. The shaping device according to claim 1 , wherein the pre-toned ink is an ink in which a density of a color is further adjusted in accordance with a density of a color to be colored on the three-dimensional object.4. The shaping device according to claim 3 , wherein the pre-toned ink is an ink in which the color is toned by mixing an ink of a color of a plurality of chromatic colors claim 3 , and in which a density of a color is adjusted by further mixing an ink for diluting the density of the color.5. The shaping device according to claim 4 , wherein the ink for diluting the density of the color is a clear ink.6. The shaping device according to claim 2 , wherein the pre-toned ink is an ink in which a density of a color is further adjusted in accordance with a density of a color to be colored on the three-dimensional object.7. The ...

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Номер записи: 97

11-01-2018 дата публикации

Liquid supply device and liquid ejecting apparatus

Номер: US20180009231A1

Автор: Jun Shimazaki, Junpei Yamashita, Katsumi Shinkai, Masahiro Nakamura, Toshihiro YOKOZAWA

Принадлежит: Seiko Epson Corp

A liquid supply device includes a connection body which includes a liquid introduction portion which is capable of connecting to a liquid outlet portion of a liquid container which includes the liquid outlet portion which contains the liquid which is supplied to the liquid ejecting unit which ejects the liquid and is capable of guiding out the liquid, a liquid container support portion which is capable of supporting the liquid container in a state in which the liquid introduction portion is capable of being connected to the liquid outlet portion to be capable of being freely attached and detached, and a connection body holding portion which holds the connection body in a state in which a connection of the liquid introduction portion with the liquid outlet portion is released.

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Номер записи: 98

10-01-2019 дата публикации

Method for controlling liquid ejection apparatus

Номер: US20190009524A1

Автор: Kazuhiro Yamada, Naozumi Nabeshima, Toru Nakakubo, Yohei Nakamura, Yoshiyuki Nakagawa

Принадлежит: Canon Inc

A liquid ejection apparatus includes a supply control section 401 that controls the supply and stop of a liquid to pressure chambers communicating with ejection ports to eject the liquid, and a negative pressure generating section 1004 that generates a negative pressure. The liquid ejection apparatus also includes a negative pressure control unit 230 using the negative pressure generated by the negative pressure generating section 1004 to adjust the pressure of the liquid flowing through a collection channel. To stop a flow of the liquid, the supply control section 401 stops the supply of the liquid, and then the negative pressure generating section 1004 is stopped.

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Номер записи: 99

10-01-2019 дата публикации

INKJET PRINTING APPARATUS

Номер: US20190009557A1

Автор: Abe Takashi, Arai Ryoma, Kosuge Junya, Mukoyama Yumi, Okude Kyoshiro

Принадлежит:

An inkjet printing apparatus includes a tank, a print head including a pressure chamber filled with ink supplied from the tank and an ejection opening which is communicated with the pressure chamber and which ejects ink filled in the pressure chamber a supply flow path for supplying ink from the tank to the print head, a collection flow path for collecting ink from the print head to the tank, a circulation unit configured to circulate ink so as to flow through the supply flow path, an inside of the pressure chamber, and the collection flow path, and a buffer chamber disposed inside the print head or in the collection flow path and which is volume variable. The tank is disposed higher than the print head in a vertical direction, and a one-way valve is provided between the buffer chamber and the tank in the collection flow path. 1. An inkjet printing apparatus comprising:a tank in which ink is contained;a print head including a pressure chamber filled with ink supplied from the tank and an ejection opening which is communicated with the pressure chamber and which ejects ink filled in the pressure chamber;a supply flow path for supplying ink from the tank to the print head;a collection flow path for collecting ink from the print head to the tank;a circulation unit configured to circulate ink so as to flow through the supply flow path, an inside of the pressure chamber, and the collection flow path; anda buffer chamber which is disposed inside the print head or in the collection flow path and which is volume variable, whereinthe tank is disposed higher than the print head in a vertical direction, anda one-way valve is provided between the buffer chamber and the tank in the collection flow path.2. The inkjet printing apparatus according to claim 1 , further comprising:a collection pump disposed in the collection flow path, andwherein the one-way valve is disposed downstream of the collection pump in the collection flow path.3. The inkjet printing apparatus according to ...

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Номер записи: 100