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7625080 |
Air management in a fluid ejection device
One exemplary fluid ejection device includes a substrate having one or more layers positioned thereon. The fluid ejection device also includes a fluid-feed path extending through a space which is...
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7614710 |
Vent seal
One embodiment of a vent seal includes a vent that defines a vent channel and a seal positioned within the channel in both a closed vent condition and in an open vent condition.
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7604337 |
Inkjet head and inkjet recording device
An inkjet head capable of achieving stable ejection of ink by preventing air bubbles from being left in the upstream side of a nozzle of a filter element such as mesh filter that is provided in an...
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7597417 |
Discharge determination device and method
The discharge determination device which determines discharge status in a droplet discharge apparatus comprising: a nozzle which discharges a droplet of liquid; a pressure chamber which is...
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7597427 |
Liquid channel structure and liquid-droplet jetting apparatus
An ink channel in a channel unit includes a pressure chamber and a throttle channel in which ink flows along different planes and a communication hole which communicates the pressure chamber and...
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7591549 |
Bubble purging system and method
A method and system for purging bubbles from a fluid chamber of a micro-fluid ejection head containing a plurality of fluid chambers, an ejection actuator respectively associated with each of the...
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7588308 |
Liquid ejection apparatus and air bubble determination method
The liquid ejection apparatus comprises: a liquid ejection head including a nozzle which ejects liquid, a pressure chamber provided to correspond to the nozzle, a pressure generating element which...
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7588432 |
Pump and inkjet printer
A pump includes a case, a rotor, and a partition member. The case has a hollow inside defined by an inner wall surface thereof and includes a suction inlet through which fluid is sucked in the...
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7585064 |
Apparatus to remove bubbles in an inkjet printer
An image forming apparatus includes a bubble removing apparatus to remove bubbles from a channel and a chip of a printhead by applying a pressure to an ink circulation line using a pumping unit....
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7571998 |
Printing method for preventing and/or treating air bubbles in an inkjet printer and an inkjet printer which has been modified for the printing method
A printing method for use with an inkjet printer containing a substantially closed ink duct including a nozzle, said duct being operationally connected to an electro-mechanical transducer, the...
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7571997 |
Inkjet recording device and inkjet recording head having current plates for regulating ink flow
In the head of an inkjet recording device, current plates are arranged along each row and between each row of supply openings. One end and the other end of each current plate do not both contact a...
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7559615 |
Inkjet device and method
In an inkjet device for containing, degassing and supplying ink, gas is supplied to a container for the ink so that the gas bubbles through the ink in the container. A controller controls a gas...
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7549739 |
Liquid droplet discharge apparatus, liquid supply device thereof, electro-optical device, and electronic apparatus
A liquid droplet discharge apparatus that discharges liquid droplets onto a work includes a liquid container that contains liquid, a head that discharges the liquid droplets, and a liquid supply...
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7547097 |
Liquid ejection apparatus and liquid filling method of liquid ejection apparatus
In a first preliminary filling step, ink edge is moved to a position between first and second pressure chambers in an ink supply passage and the second pressure chamber is filled preliminarily with...
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7517067 |
Ink supply system, recording apparatus, recording head, and liquid supply system
An ink supply system comprises an ink tank which contains ink, and a liquid chamber which is connected to the ink tank through a plurality of communication paths, and supplies ink taken from the...
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7510274 |
Ink delivery system and methods for improved printing
An ink delivery system having at least one off-axis ink supply container and an on-axis printhead assembly. The printhead assembly includes at least one reservoir and a corresponding standpipe...
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7500738 |
Ink cartridge
An ink cartridge includes a container in which ink is accommodated, an ink supply hole which is formed in the container so as to be open in an outer surface of the container, a plurality of...
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7497543 |
Liquid ejection apparatus and ejection abnormality factor extraction method
The liquid ejection apparatus includes: a liquid ejection head including a nozzle which ejects liquid, a pressure chamber which is connected to the nozzle and is to be filled with the liquid, a...
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7488062 |
Printing method for use in an inkjet printer and an inkjet printer which has been modified for the printing method
A printing method for application in an inkjet printer containing a substantially closed ink chamber and a nozzle, said ink chamber being operationally connected to an electro-mechanical converter,...
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7481521 |
Air removal device for ink supply mechanism, ink supply mechanism, and ink-jet printer
An air removal device for ink supply mechanism is provided which ensures separation of ink from an air permeable membrane after removal of air is completed. The air removal device includes an ink...
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7470010 |
Inkjet printhead with multiple ink inlet flow paths
An inkjet printhead with an array of ink chambers defined by sidewalls extending between a nozzle plate and an underlying wafer substrate, each chamber having a nozzle in the nozzle plate plurality...
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7452065 |
Ink bubble removal from ink jet printer
An ink jet printer includes a carriage movable on a body frame, including at least one printing head; an ink tank that stores the ink; and an ink path that supplies the ink from the ink tank to the...
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7449051 |
Separation of liquid and gas from froth
Froth is directed through a flow passage bounded by a filter and a non-porous surface, and liquid is drawn from the froth through the filter as the froth flows through the flow passage.
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7425060 |
Sealing mechanism of ink channel
There is disposed a sealing mechanism having a container which stores an ink liquid; an ink head which spouts the ink liquid; and an ink channel switching section which is disposed in an ink...
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7419253 |
Channeling fluid flow
In one embodiment, a fluid flow channel includes a first part and a second part connected to and positioned downstream from the first part such that fluid can flow from the first part to the second...
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7416294 |
Image forming apparatus and liquid control method
The image forming apparatus comprises: a recording head which discharges droplets of liquid onto a recording medium; a dissolved gas amount estimating device which estimates an amount of dissolved...
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7416288 |
Liquid ejection apparatus and liquid tank
The liquid ejection apparatus comprises: a liquid ejection unit which ejects a liquid; a liquid storage unit which stores the liquid to be supplied to the liquid ejection unit; a plurality of flow...
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7410248 |
Air bubble removal in an ink jet printer
An ink jet printer including a carriage which is movable relative to a sheet of paper, a recording head which is mounted on the carriage and records an image on the sheet by ejecting a droplet of...
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7401910 |
Inkjet printhead with bubble trap
An inkjet printhead with an array of nozzles, and corresponding actuators for ejecting ink through the nozzles; a plurality of ink inlet apertures in fluid communication with the nozzles, each of...
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7401905 |
Ink-jet head with ink blockage prevention device
An inkjet head includes a plurality of nozzles, a plurality of pressure chambers corresponding to the nozzles and connected to the nozzles, a common ink chamber for supplying ink to the pressure...
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7361210 |
Methods and apparatuses for separating froth
Methods and apparatuses are provided for separating froth into liquid and gas components. One apparatus includes a container that is configured to hold froth therein and change at least a portion...
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7360882 |
Ink-jet recording apparatus, method of removing air of ink-jet recording apparatus and removing air device
An air removing device is connected to a tank to contain ink through a first supply tube, and an ink-jet head is connected to the air removing device through a second supply tube. The first supply...
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7357499 |
Inkjet print head with multi-functional structure
An inkjet print head including a chamber layer provided with an ink via, at least one ink chamber having a heater, and at least one ink channel connecting the ink via and the ink chamber; and a...
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7332018 |
Deaerator, liquid ejecting device, and inkjet recording apparatus
The deaerator for liquid, comprises: a flow path in which the liquid flows; a pressure reducing deaerating device which removes dissolved gas contained in the liquid inside the flow path by...
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7332209 |
Laminated structure formed of thin plates
The laminated structure comprises: a plurality of thin plate members; and adhesive which bonds the plurality of thin plate members in layers, wherein: at least one of the plurality of thin plate...
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7328854 |
Fluid control valve and droplet ejection device
Exemplary embodiments can provide a fluid control valve, which reduces or prevents any bubble from being built up in the valve itself so as to protect other hydraulic equipment placed in a...
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7311761 |
Gas absorption device, method of manufacturing the same, and liquid container
The present invention is a gas absorption device arranged in a liquid container storing a liquid fed to a liquid consumption apparatus. The device includes a decompressed container having an...
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7273275 |
Air funneling inkjet printhead
Some embodiments of the present invention provide a inkjet printhead having an internal ink reservoir, an ink via in fluid communication with the ink reservoir, a filter tower extending into the...
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7273267 |
Bubble-eliminating liquid filling method, droplet discharging apparatus, and inkjet recording apparatus
The liquid filling method is for filling a liquid into a liquid discharge apparatus comprising a nozzle which discharges a droplet of the liquid, a pressure chamber which is in communication with...
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7249824 |
Liquid discharge head having inductive channel and recording device incorporating liquid discharge head
An ink print head reducing ink supply errors caused by air bubbles in order to stably supply ink at larger amounts. The ink print head includes an ink container for holding ink, a recording element...
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7238224 |
Fluid-gas separator
A fluid-gas separator includes a gas-permeable membrane arranged sufficiently adjacent to a fluid-permeable membrane to allow the separation of fluid and gas flowing therein independent of the...
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7195335 |
Liquid member ejecting device and method therefor, electro-optic device and manufacturing method therefor
A liquid member ejecting device comprises an ejecting head and a liquid member tank for storing a liquid member and supplying the liquid member to the ejecting head. The liquid member ejecting...
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7150513 |
Droplet ejection apparatus and ejection failure recovery method
A droplet ejection apparatus is provided having a plurality of droplet ejection heads each ejecting liquid within a cavity through a nozzle in the form of droplets by driving an actuator with a...
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7140714 |
Back-pressure and impedance tester for ink jet cartridges
A flow resistance measuring or black-pressure tester is provided for ink cartridges. A syringe pump extracts fluid at a desired flow rate from an outlet port of an ink cartridge. An ink removal...
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7131720 |
Inkjet printer and maintenance method thereof
In a maintenance method of an inkjet printer comprising an air discharge device which discharges air accumulated in ink supply paths with pressurized air and an ink vacuum device which vacuums ink...
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7128404 |
Droplet discharge head and inkjet recording apparatus
The droplet discharge head comprises: a nozzle which discharges droplets of a liquid; a pressure chamber which is in communication with the nozzle and is filled with the liquid to be discharged...
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7118206 |
Gas bubble removal from ink-jet dispensing devices
A method and apparatus for effectively removing gas bubbles in systems fed to ink-jetting devices. The system removes both small and large-scale gas bubbles from systems that feed materials to ink...
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7114801 |
Method and apparatus for providing ink to an ink jet printing system
A reservoir for an ink supply for an ink-jet printer is provided with a refill port through which it can be refilled. The reservoir may be coupled to a variable volume chamber via a check valve...
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7111932 |
Managing contaminants in a fluid-delivery device
Methods and systems for managing contaminants are described. One exemplary method ejects fluid from multiple ejection chambers of a printing device in a pattern designed primarily to create fluid...
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7097274 |
Removing gas from a printhead
A method of removing gas from a printhead is provided. A sealing material may be applied to orifices of a printhead from external the printhead to restrict passage of fluid through the orifices....
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