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7472986 |
Liquid droplet discharge head and liquid droplet discharge device
The liquid droplet discharge head comprises: a plurality of liquid chambers formed with nozzles which discharge droplets of liquid, the plurality of liquid chambers being arranged...
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7472984 |
Inkjet chamber with plurality of nozzles
An inkjet drop ejection apparatus that has a chamber with a plurality of nozzles, and an actuator with associated drive circuitry for selectively ejecting drops of ink through any one of the...
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7470004 |
Liquid ejection head and liquid ejection device
A flow path structure includes a heating element, a barrier layer, a liquid chamber formed by a part of the barrier layer and a pair of walls confronting each other to hold the heating element...
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7470003 |
Ink jet printhead with active and passive nozzle chamber structures arrayed on a substrate
A printhead includes a substrate that defines a plurality of ink inlet channels. A drive circuitry layer is positioned on the substrate. A plurality of nozzle arrangements is positioned on the...
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7469989 |
Printhead chip having longitudinal ink supply channels interrupted by transverse bridges
A printhead integrated circuit is provided. The printhead integrated circuit comprises: (a) a plurality of nozzles formed on a frontside of a substrate, the nozzles being arranged in rows extending...
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7468139 |
Method of depositing heater material over a photoresist scaffold
A method of forming a nozzle for an inkjet printhead is provided. The nozzle comprises a suspended heater element, which is formed by depositing heater material over a sacrificial photoresist...
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7467860 |
Ink priming system for inkjet printhead having a bypass flow path
An ink priming system for an inkjet printhead is provided. The system has a priming inlet of the printhead for receiving a supply of priming ink, an ink flow passage interconnecting the printhead...
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7465029 |
Radially actuated micro-electromechanical nozzle arrangement
This invention relates to a micro-electromechanical nozzle arrangement for an inkjet printhead. The arrangement includes a substrate having a layer of drive circuitry and defining an ink chamber...
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7465028 |
Nozzle assembly having a thermal actuator with active and passive beams
The invention relates to a nozzle assembly for a printhead. The assembly includes a substrate which defines an ink inlet aperture, the substrate having a layer of micro-electromechanical drive...
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7465025 |
Nozzle arrangement with nozzle having dynamic and static ink ejection structures
A nozzle arrangement for an inkjet printhead includes a substrate that defines an ink inlet channel. A nozzle includes a static structure that extends from the substrate and surrounds the ink inlet...
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7465024 |
Inkjet nozzle assembly incorporating a fluidic seal
An inkjet nozzle assembly for a printhead integrated circuit is configured to be replicated on a wafer substrate incorporating drive circuitry so that the printhead integrated circuit comprises an...
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7465019 |
Inkjet printhead incorporating staggered rows of nozzle arrangements
A printhead is provided for an inkjet printer. The printhead includes a substrate assembly defining rows of ink inlet channels. Rows of nozzle arrangements are disposed on the substrate assembly...
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7461924 |
Printhead having inkjet actuators with contractible chambers
An ink printhead is provided having a plurality of nozzle assemblies. Each nozzle assembly has a nozzle and an actuator for ejecting ink through the nozzle. Each actuator has a resiliently...
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7455391 |
Printing assembly with micro-electromechanical nozzle arrangements and a convergent ink distribution assembly
A printing assembly has a chassis. A printhead assembly is mounted on the chassis and has printhead integrated circuits each with a plurality of micro-electromechanical nozzle arrangements for...
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7452474 |
Method of manufacturing substrate for ink jet recording head and method of manufacturing recording head using substrate manufactured by this method
In order to form a more homogenous heat generating resistive layer, the present invention provides a method of manufacturing a substrate for an ink jet recording head having a support which has an...
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7448728 |
Nozzle assembly having a sprung electromagnetically operated plunger
The invention provides for a nozzle assembly for a printer. The assembly includes a substrate and drive circuitry on the substrate. A plurality of layers is stacked on the substrate to define an...
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7441865 |
Printhead chip having longitudinal ink supply channels
A pagewidth inkjet printhead is provided. The printhead comprises: (a) a plurality of nozzles formed on a frontside of a substrate, each nozzle having a respective nozzle inlet; and (b) a plurality...
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7438392 |
Microfluidic substrates having improved fluidic channels
A method for improving fluidic flow for a microfluidic device having a through hole or slot therein. The method includes the steps of forming one or more openings through at least part of a...
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7438391 |
Micro-electromechanical nozzle arrangement with non-wicking roof structure for an inkjet printhead
The invention relates to a micro-electromechanical nozzle arrangement for an inkjet printhead. The nozzle arrangement includes a substrate defining an inverted pyramidal ink chamber with an ink...
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7431434 |
Fluid ejection device
A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction, wherein a width of the fluid...
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7431429 |
Printhead integrated circuit with planar actuators
A printhead integrated circuit for an inkjet printhead that includes a wafer substrate that defines a plurality of ink inlet channels. Drive circuitry is positioned on the wafer substrate. A...
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7431427 |
Ink supply arrangement with improved ink flows
A portable inkjet printer comprises an elongate pagewidth printhead having a plurality of ink supply passages, an elongate pagewidth ink distribution manifold connected to the printhead and an...
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7427125 |
Inkjet printhead
An inkjet printhead includes a substrate having an ink feed hole formed therethrough and a plurality of ink drop generators formed on the substrate. The drop generators define a stagger pattern,...
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7425053 |
Printhead assembly with a laminated ink distribution assembly
A pagewidth inkjet printhead assembly includes an elongate ink distribution arrangement that defines a number of inlets, a number of corresponding ink distribution channels and a number of outlets...
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7425052 |
Printhead assembly having improved adhesive bond strength
A printhead assembly is provided. The printhead assembly comprises (a) a plurality of printhead integrated circuits comprising; and (b) an ink manifold having a mounting surface, the backside of...
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7423073 |
Radiation curable compositions having improved flexibility
A radiation curable resin composition having improved flexibility. The radiation curable composition having from about 5 to about 50 weight percent of a difunctional polymeric compound; from about...
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7416280 |
Inkjet printhead with hollow drop ejection chamber formed partly of actuator material
An inkjet drop ejection apparatus with a chamber, an actuator, and a nozzle, where drops of ink are ejected through the nozzle, and where the chamber comprises a hollow structure formed on a...
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7413671 |
Method of fabricating a printhead integrated circuit with a nozzle chamber in a wafer substrate
A method of fabricating a printhead integrated circuit includes the step of forming a first layer of a polymeric material on a substrate that incorporates drive circuitry. A heater element is...
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7410247 |
Liquid ejection head and liquid ejection apparatus
A liquid ejection head including at least one head chip including a plurality of heating elements on a surface of a substrate, a nozzle sheet having nozzles disposed on the respective heating...
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7410243 |
Inkjet nozzle with resiliently biased ejection actuator
An inkjet drop ejection apparatus with an actuator for applying an ejection force to ink within the chamber to eject drops from the nozzle; wherein, the actuator is resiliently biased such that...
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7407269 |
Ink jet nozzle assembly including displaceable ink pusher
An ink jet printhead chip includes a substrate. Drive circuitry is positioned in the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes...
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7407264 |
Liquid discharging apparatus and liquid discharging method
In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging...
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7404625 |
Ink jet nozzle arrangement having paddle forming a portion of a wall
An ink jet nozzle arrangement for a printhead is provided. The nozzle arrangement includes nozzle chamber for storing ink to be ejected, at least one moveable actuator paddle forming at least a...
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7401900 |
Inkjet nozzle with long ink supply channel
An inkjet nozzle with an elongate ink inlet channel at least 150 microns long. The channel defines a straight flow path of a length sufficient to provide enough viscous damping to prevent...
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7401884 |
Inkjet printhead with integral nozzle plate
An inkjet drop ejection apparatus comprising:
a chamber with a side wall and a nozzle wall, the nozzle wall defining an ink ejection nozzle; and, an actuator for ejecting drops of ink...
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7399063 |
Micro-electromechanical fluid ejection device with through-wafer inlets and nozzle chambers
A micro-electromechanical fluid ejection device includes a substrate. Drive circuitry is arranged on an outlet side of the substrate. A plurality of nozzle chambers and corresponding fluid inlets...
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7399003 |
Duct connecting structure
A plurality of cylindrical port defining portions project from a passage defining member defining a plurality of passages. A supply line defining body defining a plurality of supply lines is formed...
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7393083 |
Inkjet printer with low nozzle to chamber cross-section ratio
An inkjet drop ejection apparatus having a chamber with a nozzle; and,
an actuator for ejecting drops of ink through the nozzle; wherein, the area defined by the nozzle is less than half a...
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7387371 |
Liquid discharge head
An ink jet recording head can, when a smaller liquid droplet is obtained, suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port,...
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7387369 |
Method for providing low volume drop displacement in an inkjet printhead
A bubble forming liquid is placed into thermal contact with a heater element of a nozzle of an ink jet printhead. The heater element is heated to a temperature above the boiling point of the bubble...
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7387368 |
Pagewidth printhead having sealed inkjet actuators
An inkjet printhead is provided having an elongate ink supply channel defined within a substrate and a plurality of inkjet nozzles arranged on the substrate to extend across a pagewidth. Each...
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7387365 |
Nozzle for an inkjet printer incorporating a plunger assembly
A nozzle is provided for an inkjet printer. The nozzle includes a cover defining a nozzle port. A substrate assembly is fast with the cover, and defines a nozzle chamber in fluid communication with...
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7387364 |
Ink jet nozzle arrangement with static and dynamic structures
A nozzle arrangement for a printhead integrated circuit is configured to be replicated on a wafer substrate incorporating drive circuitry so that the printhead integrated circuit comprises an array...
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7384131 |
Pagewidth printhead having small print zone
A printer comprising a stationary printhead extending across a paper path is provided. The printhead has a plurality of color channels, each color channel comprising at least one nozzle row...
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7384128 |
Printhead IC with nozzle array for linking with adjacent printhead IC's
A printhead IC for an inkjet printer that mounts the printhead IC together with at least one other like printhead IC to provide a pagewidth printhead for printing onto a media substrate fed past...
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7381342 |
Method for manufacturing an inkjet nozzle that incorporates heater actuator arms
A method is provided for manufacturing an inkjet nozzle. The method includes the step of depositing a plastics material layer on a substrate incorporating heater actuator circuitry. The plastics...
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7380927 |
Ink jet recording apparatus
A liquid jet recording apparatus includes a liquid jet head including discharge ports, element substrates, a base substrate, common liquid chambers, and a head liquid chamber. The apparatus also...
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7380913 |
Ink jet printer nozzle assembly with micro-electromechanical paddles
An inkjet printer nozzle assembly includes a substrate. Drive circuitry is positioned on the substrate. A nozzle chamber structure extends from the substrate and defines a nozzle chamber into which...
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7374695 |
Method of manufacturing an inkjet nozzle assembly for volumetric ink ejection
A method is provided for manufacturing a printer nozzle. The method includes the step of depositing a metal layer upon a semi-conductor wafer. The metal layer defines a pair of protruding portions...
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7372145 |
Bonded assembly having improved adhesive bond strength
A bonded assembly is provided. The bonded assembly comprises: (a) a first substrate having a plurality of etched trenches defined in a first bonding surface; and (b) a second substrate having a...
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