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7621616 |
Ink jet recording apparatus and method and program for checking nozzles thereof
A recording head includes an ink-discharging surface and nozzles. The ink-discharging surface is provided with ink-discharging ports of the nozzles. A light-emitting element and a light-receiving...
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7618125 |
Printhead integrated circuit with vapor bubbles offset from nozzle axis
A printhead integrated circuit for an inkjet printer that has a plurality of nozzle apertures 5 , each with a nozzle axis normal to, extending through the center of the nozzle aperture. A chamber ...
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7618124 |
Thermal bend actuator comprising porous material
A thermal bend actuator, having a plurality of elements, is provided. The actuator comprises a first active element for connection to drive circuitry and a second passive element mechanically...
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7611227 |
Nozzle arrangement for a printhead integrated circuit
A nozzle arrangement for a printhead integrated circuit is disclosed. The arrangement includes an ink chamber having an ink ejection port, an ink ejecting member angularly displaceable within the...
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7611226 |
Thermal printhead with heater element and nozzle sharing common plane of symmetry
An ink jet printhead that has a nozzle aperture 3 that defines a planar opening having two planes of symmetry, both of which extend perpendicular to the plane of the opening. The printhead also...
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7611225 |
Inkjet nozzle assembly having thermal bend actuator with an active beam defining part of an exterior surface of a nozzle chamber roof
An inkjet nozzle assembly is provided. The assembly comprises a nozzle chamber comprising a floor and a roof. The roof has a nozzle opening defined therein, and a moving portion moveable towards...
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7604333 |
System and method for providing image forming composition on a substrate using a drop on demand ink printer
A method of printing onto one or more sides of a mesh fabric, such a polyester mesh typically used for flags and banners, using a drop on demand ink printer, wherein the printer is operated at a...
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7604326 |
Electrostatic suction type fluid discharge device
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by...
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7604325 |
Inkjet printhead with reciprocating actuator
An inkjet printhead integrated circuit includes a substrate defining an ink supply channel. An ink chamber structure is arranged on the substrate to define an ink chamber into which ink from the...
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7597423 |
Printhead chip with high nozzle areal density
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble...
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7591540 |
Ink ejection arrangement having cooperating chamber wall edge portions and paddle edge portions
An ink ejection arrangement for a printhead integrated circuit is provided. The arrangement includes a fluid chamber having a fluid outlet nozzle and a fluid supply channel respectively defined in...
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7591539 |
Inkjet printhead with narrow printing zone
An inkjet printhead that has an array of drop ejection apparatuses formed by lithographic etching and deposition techniques on a first side of a supporting wafer substrate. Each of the drop...
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7588320 |
Droplet ejection device and method using electrostatic field
Disclosed are a droplet ejection device and method using an electrostatic field. The droplet ejection method includes: setting a separate electric field direction in each of a plurality of nozzles;...
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7588319 |
Media supply cartridge of a roll-fed printer
Provided is a wallpaper printer having a media supply cartridge. The cartridge includes a media case, a media roll assembly rotatably located within the media case, and a roller assembly configured...
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7585051 |
Liquid ejection head
A liquid ejection head includes ejection ports ejecting as droplets a solution containing colorant particles dispersed therein and a device that makes uniform ejection of the solution from...
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7581824 |
Electrostatic actuator, droplet discharge head and method for manufacturing the droplet discharge head, droplet discharge apparatus, and device
To provide an electrostatic actuator that generates high pressure under a given voltage and includes an insulating film exhibiting excellent insulation resistance, a droplet discharge head that...
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7581818 |
Pagewidth inkjet printhead with ink ejection devices having a series of protrusions to facilitate ink ejection
Provided is a pagewidth inkjet printhead which has a plurality of ink ejection devices. Each of these devices includes a substrate defining a fluid chamber having a fluid outlet nozzle and a fluid...
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7581817 |
Inkjet nozzle assembly with a raised rim for pinning a meniscus of ink in a nozzle chamber
A nozzle assembly is provided for an inkjet printhead. The nozzle assembly includes a substrate assembly defining an ink inlet aperture. A nozzle includes an endless wall portion extending from the...
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7581816 |
Nozzle arrangement with a pivotal wall coupled to a thermal expansion actuator
A nozzle arrangement for an inkjet printhead includes a substrate assembly defining an ink inlet channel. A nozzle chamber structure defines a nozzle chamber in fluid communication with the ink...
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7578951 |
Method of making microcapsules utilizing a fluid ejector
A method of making microcapsules including activating a fluid ejector at a frequency greater than 10 kilohertz where each activation of the fluid ejector generates essentially a drop, and the fluid...
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7578582 |
Inkjet nozzle chamber holding two fluids
An inkjet nozzle chamber is configured to hold ink and a second fluid with a lower thermal conductivity. At least part of the actuator is positioned at the interface between the ink and the second...
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7572730 |
Method of manufacturing wiring substrate, liquid ejection head and image forming apparatus
The method of manufacturing a wiring substrate includes the steps of: filling conductive material into a through hole and a non-through hole of a substrate; removing the conductive material filled...
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7571988 |
Variable-volume nozzle arrangement
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly defining an ink inlet. A static wall extends from the substrate assembly and bounds...
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7571987 |
Ink jet head and image recording apparatus including the ink jet head
The ink jet head ejects ink droplets by exerting an electrostatic force on ink having dispersed charged particles, and includes an insulating ejection substrate having through holes, ejection...
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7571986 |
Solenoid valve for a drop on demand ink jet printer
The invention relates to a solenoid valve made using certain materials which is capable of operation at high frequencies and which can be made as a compact unit. The invention also relates to...
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7568791 |
Nozzle arrangement with a top wall portion having etchant holes therein
The current invention provides for a nozzle arrangement for an inkjet printer. The nozzle arrangement includes a wafer substrate defining an ink supply channel therethrough, with side wall portions...
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7568790 |
Printhead integrated circuit with an ink ejecting surface
Provided is a printhead integrated circuit defining an external surface having a number of ink ejection ports operatively directed at a printing medium. The surface includes a plurality of petal...
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7568789 |
Pagewidth printhead with nozzle arrangements for weighted ink drop ejection
Provided is a pagewidth printhead with a controller, the printhead having a plurality of micro-electromechanical nozzle arrangements. Each nozzle arrangement includes a multilayered substrate...
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7568788 |
Printhead with barrier at chamber inlet
An inkjet printhead that has an array of ink ejection devices, each ink ejection device having a chamber for holding a quantity of ink, an inlet in fluid communication with the chamber, an actuator...
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7568787 |
Printhead including seal membrane
An inkjet printhead comprising a plurality of nozzle assemblies is provided. Each nozzle assembly has a moving portion for ejection of ink. The printhead includes a seal membrane joining the moving...
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7568285 |
Method of fabricating a self-aligned print head
An orifice array plate and a charge plate for a continuous ink jet printer print head are integrally fabricated by providing an electrically non-conductive substrate; forming, on one side of the...
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7566117 |
Inkjet recording head and inkjet recording device
The present invention provides an inkjet recording head and inkjet recording device which can eject a high viscosity ink at ordinary temperature. The inkjet recording head has a nozzle portion...
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7566114 |
Inkjet printer with a pagewidth printhead having nozzle arrangements with an actuating arm having particular dimension proportions
An inkjet printer has a pagewidth printhead with a plurality of nozzle arrangements. Each nozzle arrangement includes a substrate with an inlet channel etched therethrough, and nozzle chamber walls...
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7566113 |
Inkjet nozzle incorporating serpentine actuator
A nozzle is provided for an inkjet printer. The nozzle includes a roof layer which defines a nozzle port through which ink can be ejected. An endless substrate layer is fast with the roof layer and...
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7562966 |
Ink jet printhead with suspended heater element
An ink jet printhead comprising: a substrate; a plurality of chambers supported by the substrate for receiving therewithin bubble forming liquid; a nozzle aperture formed in a surface of each...
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7559630 |
Substantially planar fluid ejection actuators and methods related thereto
Fluid ejection actuators, micro-fluid ejection heads, and methods relating thereto. One such fluid ejection actuator is provided by a conductive layer adjacent a substrate. The conductive layer has...
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7559629 |
Methods and apparatuses for implementing multi-via heater chips
A heater chip for use in a printing device that includes a first heater array with a left side and a right side and a first ink via placed on the left side of the first heater array. The chip also...
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7556358 |
Micro-electromechanical integrated circuit device with laminated actuators
A micro-electromechanical integrated circuit includes a substrate. Drive circuitry is positioned on the substrate. The device includes a plurality of elongate actuators. Each actuator includes a...
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7556357 |
Ink jet printhead with nozzle assemblies having fluidic seals
The invention provides for an ink jet printhead having a wafer substrate and a plurality of nozzle assemblies arranged in an array on the substrate and the product of dielectric and metal layers...
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7556356 |
Inkjet printhead integrated circuit with ink spread prevention
An inkjet printhead integrated circuit includes a silicon wafer substrate that defines a plurality of ink inlet channels. An electrical drive circuitry layer is positioned on the silicon wafer...
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7556355 |
Inkjet nozzle arrangement with electro-thermally actuated lever arm
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly, in turn, including an electrical drive circuitry layer and defining an ink inlet...
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7556354 |
Nozzle arrangement with twin heater elements
A nozzle arrangement is provided for ejecting ink. The nozzle arrangement includes a substrate assembly defining an ink inlet passage. A nozzle chamber structure extends from the substrate assembly...
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7556353 |
Printhead with small drive transistor to nozzle area ratio
A inkjet printhead that has a wafer substrate with a fluid ejection surface, and an array of drop ejectors for ejecting drops of printing fluid onto a media substrate, the array being formed on the...
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7556352 |
Inject printhead with outwarldy extending actuator tails
A printhead is provided for an inkjet printer. The printhead includes a wafer assembly defining spaced apart groups of ink supply channels. Groups of ink ejection nozzle arrangements extend from...
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7556351 |
Inkjet printhead with spillage pits
A printhead is provided for an inkjet printer. The printhead includes a wafer assembly defining a plurality of spaced apart groups of ink supply channels and a plurality of groups of ink ejection...
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7556350 |
Thermal inkjet printhead with low power consumption
An inkjet printhead that has a plurality of nozzles and respective heater elements, together with drive circuitry that can send a pulse of electrical energy to each heater element to form a vapor...
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7556344 |
Inkjet printhead comprising a substrate assembly and volumetric nozzle assemblies
An inkjet printhead includes a substrate assembly and a plurality of nozzle assemblies arranged in an array on the substrate assembly. Each nozzle assembly includes an anchor extending from the...
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7553001 |
Inkjet printhead with laterally reciprocating paddle
An inkjet printhead includes a nozzle chamber structure defining a nozzle chamber. The nozzle chamber structure further defines a pair of ink ejection nozzles and an ink supply channel in fluid...
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7549735 |
Inkjet printhead with quadrupole actuators
An inkjet printhead comprising: an array of ink chambers, each having a nozzle and an actuator for ejecting ink through the nozzle; wherein during use, the actuator initiates a quadrupole pressure...
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7549732 |
Printhead having nozzle arrangements with sealing structures
The present invention relates a printhead for an inkjet printer. The printhead has a plurality of nozzle arrangements, with each arrangement having a substrate defining an ink inlet channel leading...
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