Top 100 US Patents in Typesetting
section b - performing operations; transporting > printing; lining machines; typewriters; stamps > typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors
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US5745137 (A), filed
Wed May 31 00:00:00 CDT 1995
, published
Tue Apr 28 00:00:00 CDT 1998
- HEWLETT PACKARD CO
A closed ink replenishment system for replenishing the supply of ink in negative pressure spring-bag reservoirs in a printer/plotter. A tube runs between each cartridge reservoir and an auxiliary reservoir mounted to the printer/plotter frame to form the...
US5825387 (A), filed
Thu Apr 27 00:00:00 CDT 1995
, published
Tue Oct 20 00:00:00 CDT 1998
- HEWLETT PACKARD CO
An ink supply for an ink-jet printer is provided with a main reservoir, which is typically maintained at ambient pressure. The main reservoir is coupled to a variable volume chamber via a one-way valve which allows the flow of ink from the reservoir to the...
US4459601 (A), filed
Mon Jan 04 00:00:00 CST 1982
, published
Tue Jul 10 00:00:00 CDT 1984
- EXXON RESEARCH ENGINEERING CO
An ink jet includes a variable volume chamber with an ink droplet ejecting orifice. The volume of the chamber is varied by a transducer which expands and contracts in a direction having at least a component extending parallel with the axis ink droplet ejection...
US6764169 (B2), filed
Thu Nov 01 00:00:00 CST 2001
, published
Tue Jul 20 00:00:00 CDT 2004
- HEWLETT PACKARD DEVELOPMENT CO
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 which allows the flow of ink from the reservoir to the chamber and...
US4584047 (A), filed
Tue Apr 03 00:00:00 CST 1984
, published
Tue Apr 22 00:00:00 CST 1986
- MONARCH MARKING SYSTEMS INC
A hand-held labeler, particularly a labeler employing a thermographic print head, utilizes improved control circuitry for accurately sensing the position of the web and controlling the operation of the print head in order accurately to control the position of...
US5946012 (A), filed
Thu Jun 04 00:00:00 CDT 1998
, published
Tue Aug 31 00:00:00 CDT 1999
- HEWLETT PACKARD CO
An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink...
US5682187 (A), filed
Thu Oct 31 00:00:00 CST 1996
, published
Tue Oct 28 00:00:00 CST 1997
- CANON KK
An ink jet recording head, which can be used in a recording apparatus, is manufactured by preparing a first base plate provided with an energy generating structure for generating energy to discharge ink, preparing a second base plate provided with a discharge...
US5521621 (A), filed
Wed Jan 12 00:00:00 CST 1994
, published
Tue May 28 00:00:00 CDT 1996
- CANON KK
A recording apparatus comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow...
US5874974 (A), filed
Wed Feb 28 00:00:00 CST 1996
, published
Tue Feb 23 00:00:00 CST 1999
- HEWLETT PACKARD CO
An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink...
US5488401 (A), filed
Tue Aug 11 00:00:00 CDT 1992
, published
Tue Jan 30 00:00:00 CST 1996
- SEIKO EPSON CORP
An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the...
US4646106 (A), filed
Fri Feb 03 00:00:00 CST 1984
, published
Tue Feb 24 00:00:00 CST 1987
- EXXON PRINTING SYSTEMS INC
An ink jet includes a variable volume chamber with an ink droplet ejecting orifice. The volume of the chamber is varied by a transducer which expands and contracts in a direction having at least a component extending parallel with the axis ink droplet ejection...
US4791438 (A), filed
Wed Oct 28 00:00:00 CST 1987
, published
Tue Dec 13 00:00:00 CST 1988
- HEWLETT PACKARD CO
US5278584 (A), filed
Thu Apr 02 00:00:00 CST 1992
, published
Tue Jan 11 00:00:00 CST 1994
- HEWLETT PACKARD CO
This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a barrier layer containing ink channels and vaporization chambers is located between a rectangular...
US6460975 (B2), filed
Fri Dec 21 00:00:00 CST 2001
, published
Tue Oct 08 00:00:00 CDT 2002
- ASAHI OPTICAL CO LTD
Ink transfer printer has an electrically-insulated base member, a plurality of electric resistance elements linearly formed on a surface of said base member, a frame member having an opening, securely provided on the surface of said base member such that said...
US6392680 (B2), filed
Tue Mar 02 00:00:00 CST 1999
, published
Tue May 21 00:00:00 CDT 2002
- DAINIPPON PRINTING CO LTD
The present invention relates to image-formation on any selected kind of objective body. The characterizing features reside in such that, based upon fed image data, required images are formed on an image-transferable sheet acting for image carry-over service...
US5469199 (A), filed
Thu Apr 02 00:00:00 CST 1992
, published
Tue Nov 21 00:00:00 CST 1995
- HEWLETT PACKARD CO
A novel, wide inkjet printhead and method of forming said inkjet printhead is disclosed, wherein a pattern of orifices are formed, using a step-and-repeat process, in a flexible tape using laser ablation or other suitable etching devices. The location of the...
US4824268 (A), filed
Thu Aug 27 00:00:00 CDT 1987
, published
Tue Apr 25 00:00:00 CDT 1989
- DIERNISSE H V
An ergonomic keyboard that is suitable for all devices interfacing with a keyboard; and that is able to transmit on unlimited amount of information including the more than 50 alphabets of the world, numbers, other symbols, programing, and operational...
US6652082 (B2), filed
Tue Nov 12 00:00:00 CST 2002
, published
Tue Nov 25 00:00:00 CST 2003
- SILVERBROOK RES PTY LTD
A printhead assembly for an ink jet printer includes an elongate pagewidth printhead having a plurality of nozzle arrangements. The printhead defines a plurality of ink supply passages in fluid communication with each respective nozzle arrangement. An elongate...
US6985600 (B2), filed
Thu Mar 15 00:00:00 CST 2001
, published
Tue Jan 10 00:00:00 CST 2006
- DIGIMARC CORP
Stationery, or other printable media, is encoded with a digital watermark. The watermark is not conspicuous to a human observer of the media, yet conveys plural bits of auxiliary information when optically scanned and digitally processed. The watermark can be...
US4652115 (A), filed
Fri Oct 25 00:00:00 CDT 1985
, published
Tue Mar 24 00:00:00 CST 1987
- COLOROCS CORP
An improved full color electrophotographic print engine using flexible belts to carry a photosensitive electrostatic image developer and a transfer belt for building up composite developed images. Each belt, and an optical scanner, are driven by mechanically...
US5657058 (A), filed
Tue Jan 16 00:00:00 CST 1996
, published
Tue Aug 12 00:00:00 CDT 1997
- SEIKO EPSON CORP
An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the...
US6162589 (A), filed
Mon Mar 02 00:00:00 CST 1998
, published
Tue Dec 19 00:00:00 CST 2000
- HEWLETT PACKARD CO
A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice...
US4313124 (A), filed
Tue May 13 00:00:00 CDT 1980
, published
Tue Jan 26 00:00:00 CST 1982
- CANON KK
A liquid jet recording process and liquid jet recording head are driven by heat energy generated by an electrothermal transducer. The operating conditions as to heating and others are disclosed and further desirable dimensions of the electrothermal transducer...
US5699090 (A), filed
Mon Oct 31 00:00:00 CST 1994
, published
Tue Dec 16 00:00:00 CST 1997
- HEWLETT PACKARD CO
When a thermal inkjet print cartridge operates to eject ink, three things happen at once: (1) heating by the heating resistor with flow of heat into the ink chamber; (2) cooling by heat drain toward the reservoir, print cartridge body and to ambient; and (3)...
US5315323 (A), filed
Fri Mar 20 00:00:00 CST 1992
, published
Tue May 24 00:00:00 CDT 1994
- RICOH KK
An electrostatic plotter or similar color image forming apparatus for forming an image on a recording medium, e.g. a paper web being transported under tension by a transport roller pair by a head while sensing a register mark formed on the medium. The distance...
US6485129 (B2), filed
Fri Dec 21 00:00:00 CST 2001
, published
Tue Nov 26 00:00:00 CST 2002
- ASAHI OPTICAL CO LTD
Thermal line head includes an electrically-insulated base member, plural sets of at least two electric resistance elements formed on a surface of the base member and aligned with each other, and a driver circuit that selectively and electrically energizes the...
US6017118 (A), filed
Wed Jun 04 00:00:00 CDT 1997
, published
Tue Jan 25 00:00:00 CST 2000
- HEWLETT PACKARD CO
An ink container for an inkjet printing system is described, including an assembly of a simple housing with caps bearing indicia and protective surfaces to enable effective handling, aligning, keying and latching of the ink container. The ink container...
US5570118 (A), filed
Fri Aug 26 00:00:00 CDT 1994
, published
Tue Oct 29 00:00:00 CST 1996
- XEROX CORP
An apparatus for printing a multicolor image on a sheet movable along a sheet path in a process direction. The apparatus includes a first printhead mounted at a first location along the sheet path and containing a first type ink for printing a first portion of...
US6666541 (B2), filed
Tue Sep 25 00:00:00 CDT 2001
, published
Tue Dec 23 00:00:00 CST 2003
- PICOLITER INC
The present invention provides a method and device for the acoustic ejection of fluid droplets from each of a plurality of fluid-containing reservoirs. The droplets are ejected toward sites on a substrate surface for deposition thereon. The device is comprised...
US5830942 (A), filed
Fri Jun 28 00:00:00 CDT 1996
, published
Tue Nov 03 00:00:00 CST 1998
- TEKTRONIX INC
Resins and waxes made by reacting selected nucleophiles, including alcohols and/or amines, with an isocyanate are disclosed. The order of addition of the isocyanate and the different nucleophiles can tailor the distribution of diurethane, mixed urethane/urea,...
US6742875 (B2), filed
Fri Jan 12 00:00:00 CST 2001
, published
Tue Jun 01 00:00:00 CDT 2004
- SEIKO EPSON CORP
A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are...
US5617124 (A), filed
Fri Mar 25 00:00:00 CST 1994
, published
Tue Apr 01 00:00:00 CST 1997
- HEWLETT PACKARD CO
A service station for an inkjet printing mechanism has a moveable platform that receives waste ink which is occasionally discharged from an inkjet printhead. The printing mechanism has a drive mechanism which moves the platform between a first position for...
US5910809 (A), filed
Fri Feb 24 00:00:00 CST 1995
, published
Tue Jun 08 00:00:00 CDT 1999
- SEIKO EPSON CORP
A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are...
US6135585 (A), filed
Fri Jan 08 00:00:00 CST 1999
, published
Tue Oct 24 00:00:00 CDT 2000
- HEWLETT PACKARD CO
A replaceable inkjet printhead cleaner service station system has separate replaceable cleaning units for each printhead in an inkjet printing mechanism, which has a pallet that moves the cleaning units translationally to service the printheads. Each cleaning...
US5790158 (A), filed
Wed Jun 07 00:00:00 CDT 1995
, published
Tue Aug 04 00:00:00 CDT 1998
- SEIKO EPSON CORP
An ink tank cartridge for an ink-jet type recording apparatus being removably mounted onto an ink supply needle of a recording body is provided. The ink tank cartridge is provided with a first chamber for storing ink and a second chamber for storing a porous...
US5742311 (A), filed
Thu Mar 07 00:00:00 CST 1996
, published
Tue Apr 21 00:00:00 CDT 1998
- CANON KK
A replaceable ink cartridge, usable with a bubble jet printer, includes a container having front, back, top bottom and side walls, the container being divided internally into a first chamber and a second chamber having a common partition extending downward...
US5648807 (A), filed
Thu Sep 09 00:00:00 CDT 1993
, published
Tue Jul 15 00:00:00 CDT 1997
- SEIKO EPSON CORP
A method of discharging paper by forcibly urging the paper in a concave shape in which a printed surface is rendered concave as viewed in a discharging direction and an ink jet printer including a pair of supporting portions for supporting both side portions...
US5896145 (A), filed
Wed Nov 20 00:00:00 CST 1996
, published
Tue Apr 20 00:00:00 CDT 1999
- HEWLETT PACKARD CO
A rotary self-cleaning servicing system services inkjet printheads in an inkjet printing mechanism. A rotary service station has a wiper supporting tumbler that rotates about an axis parallel to the printhead scanning direction to wipe the printhead orthogonal...
US6312106 (B1), filed
Tue Apr 20 00:00:00 CDT 1999
, published
Tue Nov 06 00:00:00 CST 2001
- HEWLETT PACKARD CO
The present invention relates to a marking engine for use in a marking machine. The marking engine is responsive to control signals for selectively depositing marking material on media. The marking engine includes a housing associated with the marking engine....
US6113218 (A), filed
Wed Jun 07 00:00:00 CDT 1995
, published
Tue Sep 05 00:00:00 CDT 2000
- SEIKO EPSON CORP
A laminated, multi-substrate ink jet head and methods creating the same, wherein the ink jet head includes nozzle holes, emitting chambers respectively led to the nozzle holes, diaphragms formed on a wall of the emitting chambers, a common ink cavity for...
US6547361 (B1), filed
Mon Jan 24 00:00:00 CST 2000
, published
Tue Apr 15 00:00:00 CDT 2003
- CANON KK
An image recording apparatus records an image on a recording medium by causing a recording head having an arrangement of a plurality of recording elements to conduct its main scanning for the recording medium interrelatedly in the direction opposite to the...
US6631247 (B1), filed
Wed Sep 29 00:00:00 CDT 1999
, published
Tue Oct 07 00:00:00 CDT 2003
- RICOH KK
A method, system, and program product for communicating with machines connected to a network. Information sent to or from the machines is transmitted using electronic mail or a direct connection. The electronic mail may be transmitted over the Internet to a...
US6012808 (A), filed
Thu Mar 07 00:00:00 CST 1996
, published
Tue Jan 11 00:00:00 CST 2000
- CANON KK
A container for containing printing liquid for supplying to an ink jet head for an ink jet recording apparatus. The container includes first and second chambers, with the first chamber containing negative pressure producing material and having an air vent...
US4611219 (A), filed
Mon Dec 20 00:00:00 CST 1982
, published
Tue Sep 09 00:00:00 CDT 1986
- CANON KK
A liquid-jetting head comprising a plurality of liquid-jetting-pressure-generating elements and a plurality of liquid-jetting orifices opposite to said elements through a liquid passage is characterized in that said passage is divided into at least two groups,...
US5767882 (A), filed
Mon May 09 00:00:00 CDT 1994
, published
Tue Jun 16 00:00:00 CDT 1998
- HEWLETT PACKARD CO
A collapsible ink reservoir structure (25) to facilitate assembly of a replaceable or refillable printer ink cartridge is comprised of a relatively rigid frame (20) and flexible membranes (22, 24) forming an ink reservoir having side walls which collapse to a...
US6135589 (A), filed
Mon Jul 07 00:00:00 CDT 1997
, published
Tue Oct 24 00:00:00 CDT 2000
- CANON KK
An ink jet head includes a first member with an energy generating element for generating energy to eject ink, a second member having an ejection outlet forming member provided with an ink ejection outlet through which the ink is ejected, the second member...
US6183077 (B1), filed
Tue Oct 20 00:00:00 CDT 1998
, published
Tue Feb 06 00:00:00 CST 2001
- HEWLETT PACKARD CO
The present disclosure relates to an ink supply container for containing ink. The ink supply container is configured for providing ink to an ink jet printing system. The ink container includes a first feature indicative of an ink family of a plurality of ink...
US6557977 (B1), filed
Fri Jul 10 00:00:00 CDT 1998
, published
Tue May 06 00:00:00 CDT 2003
- SILVERBROOK RES PTY LTD
This patent describes ink jet printing device that utilizes a shape memory alloy such as a nickel titanium alloy for ejecting drops. The ejection involves utilization of the transformation of a shape memory alloy from its martensitic phase to its austenitic...
US6139139 (A), filed
Tue Jun 03 00:00:00 CDT 1997
, published
Tue Oct 31 00:00:00 CST 2000
- HEWLETT PACKARD CO
Described is a color inkjet printer for optimum bleed prevention in a printer utilizing multiple black and color pens wherein there is provided one print cartridge for dispensing black ink onto the printing medium and at least one print cartridge for...
US5369429 (A), filed
Wed Oct 20 00:00:00 CDT 1993
, published
Tue Nov 29 00:00:00 CST 1994
- LASERMASTER CORP
A continuous ink refill system for an ink jet printer that uses disposable ink jet cartridges having a first predetermined ink capacity includes an ink reservoir that is external to a print carriage on which the disposable ink jet cartridges are mounted. The...
US6322206 (B1), filed
Thu Dec 17 00:00:00 CST 1998
, published
Tue Nov 27 00:00:00 CST 2001
- HEWLETT PACKARD CO
An inkjet pen includes a multilayered platform and a plurality of printhead dies each mounted on the multilayered platform. The multilayered platform includes a first layer having an ink inlet defined therein, a second layer having a plurality of ink feed...
US6796731 (B2), filed
Mon Jun 17 00:00:00 CDT 2002
, published
Tue Sep 28 00:00:00 CDT 2004
- SILVERBROOK RES PTY LTD
A laminated ink distribution structure for a printhead has a number of layers adhered to one another with each layer including a number of ink holes formed therethrough. Each ink hole has communicating therewith a channel formed in one side of the layer and...
US6183076 (B1), filed
Thu Oct 24 00:00:00 CDT 1996
, published
Tue Feb 06 00:00:00 CST 2001
- HEWLETT PACKARD CO
An inkjet printer includes at least one print cartridge mounted in a scanning carriage having an ink interconnect coupled, via a flexible tube, to an ink output of a stationary pressure regulator. An ink input of the pressure regulator is connected, via a...
US5509140 (A), filed
Wed Jul 21 00:00:00 CDT 1993
, published
Tue Apr 16 00:00:00 CDT 1996
- CANON KK
A replaceable ink cartridge, usable with a bubble jet printer, comprises a container formed by front, back, top and bottom walls, and two side walls providing major surfaces of said container, with a partition dividing the container into first and second...
US6000787 (A), filed
Wed Feb 07 00:00:00 CST 1996
, published
Tue Dec 14 00:00:00 CST 1999
- HEWLETT PACKARD CO
An ink jet print head having a substrate with an upper surface, and an ink supply conduit passing through the substrate. An array of independently addressable ink energizing elements are attached to the upper surface of the substrate. An orifice layer has a...
US6341845 (B1), filed
Fri Aug 25 00:00:00 CDT 2000
, published
Tue Jan 29 00:00:00 CST 2002
- HEWLETT PACKARD CO
A wide-array inkjet printhead assembly includes a carrier and a printhead die. The carrier includes a substrate and an electrical circuit. The substrate has a first side and a second side such that the electrical circuit is disposed on the second side of the...
US6827425 (B2), filed
Mon Aug 11 00:00:00 CDT 2003
, published
Tue Dec 07 00:00:00 CST 2004
- SILVERBROOK RES PTY LTD
A liquid ejection device including a fluid chamber having a fluid outlet port in a wall of the chamber; a fluid inlet port in a wall of the chamber; a paddle located in the chamber and a thermal actuator, the thermal actuator including first and second arms...
US4951067 (A), filed
Fri Jun 03 00:00:00 CDT 1988
, published
Tue Aug 21 00:00:00 CDT 1990
- SPECTRA INC
US5969739 (A), filed
Wed Feb 19 00:00:00 CST 1997
, published
Tue Oct 19 00:00:00 CDT 1999
- HEWLETT PACKARD CO
An ink-jet pen is disclosed that has a body of resilient felted polyurethane foam mounted in an ink chamber for ink retention and backpressure. A rectangular ink pipe extends from a bottom wall of the ink chamber between the walls of the ink chamber. A wire...
US6203138 (B1), filed
Fri Nov 21 00:00:00 CST 1997
, published
Tue Mar 20 00:00:00 CST 2001
- CANON KK
An ink jet recording apparatus includes a plurality of ink jet recording heads for executing color recording, a recovery structure for maintaining and recovering a discharge state with respect to the plurality of recording heads, and a waste ink collecting...
US5690435 (A), filed
Tue Feb 08 00:00:00 CST 1994
, published
Tue Nov 25 00:00:00 CST 1997
- CANON KK
A printing apparatus system includes a plurality of type units each having a plurality of type elements and each being different from the others. Each type unit may be mounted in the apparatus. A detector detects which of the type units is so mounted and...
US5515092 (A), filed
Tue Dec 22 00:00:00 CST 1992
, published
Tue May 07 00:00:00 CDT 1996
- HEWLETT PACKARD CO
A thermal ink-jet pen cartridge having a rigid external frame member fabricated of a rigid engineering plastic, and an interior frame structure attached thereto, formed of a softer, more ductile plastic material than an engineering plastic. An ink reservoir is...
US4692778 (A), filed
Wed Mar 26 00:00:00 CST 1986
, published
Tue Sep 08 00:00:00 CDT 1987
- CANON KK
An image formation apparatus includes a cap for a recording unit and a cover for a paper feed unit, both of which can be opened and closed. Levers maintain the cap and cover in their closed positions and a handle releases them from such positions. A sealing...
US5917524 (A), filed
Tue Mar 19 00:00:00 CST 1996
, published
Tue Jun 29 00:00:00 CDT 1999
- CANON KK
An ink tank is removably mountable to an ink jet head body having a discharge opening for discharging ink, an ink communication pipe for introducing ink to an ink jet head, and a first coupling member. The ink tank comprises a container body for storing ink to...
US5621445 (A), filed
Thu Oct 13 00:00:00 CDT 1994
, published
Tue Apr 15 00:00:00 CDT 1997
- HEWLETT PACKARD CO
The invention generally relates to refillable ink cartridges for computer controlled ink jet printers and, more specifically, to apparatus for refilling collapsible ink bags which are maintained at sub-atmospheric pressure within such equipment. The refilling...
US6053607 (A), filed
Fri May 22 00:00:00 CDT 1998
, published
Tue Apr 25 00:00:00 CDT 2000
- HEWLETT PACKARD CO
An inkjet printhead is mounted on a cartridge which has an outer casing member, an inner collapsible reservoir formed by non-elastic flexible walls, and an internal spring means inside the reservoir for creating negative pressure in the collapsible reservoir...
US6508546 (B2), filed
Fri Aug 31 00:00:00 CDT 2001
, published
Tue Jan 21 00:00:00 CST 2003
- SILVERBROOK RES PTY LTD
An ink supply unit including at least one ink storage chamber for holding ink for supply to a portable ink jet printing arrangement, the ink supply unit including a series of spaced apart baffles configured so as to reduce the acceleration of the ink within...
US4463246 (A), filed
Mon Aug 31 00:00:00 CDT 1981
, published
Tue Jul 31 00:00:00 CDT 1984
- ROHM CO LTD
A thermal printing head comprising a base of electrically insulating material, a glaze layer formed on said base so as to form an elongated projection thereon, said glaze layer comprising a main portion and a portion integral with and extending from said main...
US6682181 (B1), filed
Fri Mar 17 00:00:00 CST 1995
, published
Tue Jan 27 00:00:00 CST 2004
- SPECTRA INC
In the embodiments of the simplified ink jet head described in the specification, a carbon body is formed with ink passages, such as internal passages extending through a carbon plate, pressure chambers on one side of a carbon plate, flow-through passages on...
US5381162 (A), filed
Thu Oct 08 00:00:00 CDT 1992
, published
Tue Jan 10 00:00:00 CST 1995
- TEKTRONIX INC
A drop-on-demand ink jet print head (9) has an ink pressure chamber (22) coupled to a source of ink (11) and an ink drop ejecting orifice (103) with an ink drop ejection orifice outlet (14). An acoustic driver (36), in response to a drive signal (100),...
US5844578 (A), filed
Wed Jun 07 00:00:00 CDT 1995
, published
Tue Dec 01 00:00:00 CST 1998
- SEIKO EPSON CORP
An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the...
US5980018 (A), filed
Wed Jul 03 00:00:00 CDT 1996
, published
Tue Nov 09 00:00:00 CST 1999
- HEWLETT PACKARD CO
An inkjet printhead service station for an inkjet printing mechanism includes a platform that is translationally moveable perpendicular to a scanning axis along which a carriage transports the printhead. The sliding pallet carries servicing appliances, like...
US4771295 (A), filed
Tue Jul 01 00:00:00 CDT 1986
, published
Tue Sep 13 00:00:00 CDT 1988
- HEWLETT PACKARD CO
US4771295 (B1), filed
Tue Jul 01 00:00:00 CDT 1986
, published
Tue Aug 01 00:00:00 CDT 1995
- HEWLETT PACKARD CO
US6123410 (A), filed
Tue Oct 28 00:00:00 CST 1997
, published
Tue Sep 26 00:00:00 CDT 2000
- HEWLETT PACKARD CO
A scalable wide-array printhead is formed by mounting multiple thermal inkjet printheads to a carrier substrate. The printheads are mounted to one face and logic ICs and drive ICs are mounted to an opposite face. Interconnects are formed through the carrier...
US6045207 (A), filed
Fri Apr 25 00:00:00 CDT 1997
, published
Tue Apr 04 00:00:00 CDT 2000
- SEIKO EPSON CORP
An ink tank cartridge is provided removably mountable onto an ink supply needle of the ink-jet type recording apparatus body. The cartridge has a housing provided with an ink supply port extending through and projecting from a wall of the housing and into the...
US5668579 (A), filed
Tue Jun 14 00:00:00 CDT 1994
, published
Tue Sep 16 00:00:00 CDT 1997
- SEIKO EPSON CORP
An ink jet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside...
US6598952 (B2), filed
Thu Dec 28 00:00:00 CST 2000
, published
Tue Jul 29 00:00:00 CDT 2003
- CANON KK
A recording apparatus uses a liquid recording head for effecting recording by ejecting liquid through ejection outlets corresponding to heat generation elements provided in the recording head. The recording head has a heating device for heating the recording...
US6203147 (B1), filed
Thu Jan 30 00:00:00 CST 1997
, published
Tue Mar 20 00:00:00 CST 2001
- HEWLETT PACKARD CO
The present invention is a replaceable ink container for use in an off-axis printing system. The printing system is responsive to electrical signals from the replaceable ink container for controlling printer parameters. The ink container has a leading edge and...
US5367328 (A), filed
Fri Apr 22 00:00:00 CDT 1994
, published
Tue Nov 22 00:00:00 CST 1994
- LASERMASTER CORP
An ink refill system is provided for an ink jet printer having a print carriage that traverses across a print medium and is adapted to receive one or more ink jet cartridges. The ink refill system includes a disposable ink jet cartridge removably mountable in...
US6132026 (A), filed
Wed Jul 03 00:00:00 CDT 1996
, published
Tue Oct 17 00:00:00 CDT 2000
- HEWLETT PACKARD CO
An inkjet printhead servicing station for an inkjet printing mechanism includes a translational pallet that carries servicing appliances, like wipers, caps and flaps. A service station frame defines a guide track that supports the pallet for translational...
US6082848 (A), filed
Fri Nov 15 00:00:00 CST 1996
, published
Tue Jul 04 00:00:00 CDT 2000
- HEWLETT PACKARD CO
A service station for an inkjet printing mechanism has a moveable platform that receives waste ink which is occasionally discharged from an inkjet printhead. The printing mechanism has a drive mechanism which moves the platform between a first position for...
US5025271 (A), filed
Mon Sep 18 00:00:00 CDT 1989
, published
Tue Jun 18 00:00:00 CDT 1991
- HEWLETT PACKARD CO
A disposable thin film resistor type thermal ink jet pen including a housing having a support surface at one end thereof with openings for passing ink to an adjacent thin film resistor type thermal ink jet printhead. The printhead is mounted on the support...
US5227813 (A), filed
Fri Aug 16 00:00:00 CDT 1991
, published
Tue Jul 13 00:00:00 CDT 1993
- COMPAQ COMPUTER CORP
US5610637 (A), filed
Mon Sep 27 00:00:00 CDT 1993
, published
Tue Mar 11 00:00:00 CST 1997
- RICOH KK
An ink jet recording method includes the steps of inputting a set of driving pulses to a heater element so that the heater element is repeatedly activated by the driving pulses, repeatedly generating a bubble in ink in an ink path in accordance with repeated...
US5953029 (A), filed
Fri Apr 04 00:00:00 CST 1997
, published
Tue Sep 14 00:00:00 CDT 1999
- HEWLETT PACKARD CO
This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a barrier layer containing ink channels and vaporization chambers is located between a rectangular...
US6139125 (A), filed
Tue Jun 06 00:00:00 CDT 1995
, published
Tue Oct 31 00:00:00 CST 2000
- CANON KK
An ink jet recording apparatus records by supplying heat energy according to a drive pulse to an ink to form a bubble based on film boiling and ejecting the ink from a recording head onto a recording medium based on formation of the bubble. The ink jet...
US4410900 (A), filed
Fri Sep 03 00:00:00 CDT 1982
, published
Tue Oct 18 00:00:00 CDT 1983
- CANON KK
An ink jet recording apparatus of the type in which ink is jetted toward recording paper from the tip end of a recording head to effect printing on the recording paper. The recording head is provided with a capping for covering the tip end of the head. The...
US5757406 (A), filed
Wed Dec 23 00:00:00 CST 1992
, published
Tue May 26 00:00:00 CDT 1998
- HEWLETT PACKARD CO
An inkjet printhead is mounted on a cartridge which has an outer casing member, an inner collapsible reservoir formed by non-elastic flexible walls, and an internal spring means inside the reservoir for creating negative pressure in the collapsible reservoir...
US5988783 (A), filed
Tue Feb 28 00:00:00 CST 1995
, published
Tue Nov 23 00:00:00 CST 1999
- CANON KK
An ink jet recording apparatus comprises a detachably mountable ink jet cartridge including an ink jet recording head for ejecting ink into a recording medium and an ink supply source containing ink for supply to the recording apparatus, which ink supply...
US6209983 (B1), filed
Tue Aug 05 00:00:00 CDT 1997
, published
Tue Apr 03 00:00:00 CDT 2001
- HEWLETT PACKARD CO
A rotary capping system services inkjet printheads in an inkjet printing mechanism. A rotary service station has a tumbler with a dual pivoting link that supports a cap platform. The cap platform is gimbal mounted to the link and spring-biased away from the...
US6257693 (B1), filed
Thu Apr 10 00:00:00 CDT 1997
, published
Tue Jul 10 00:00:00 CDT 2001
- HEWLETT PACKARD CO
A method of automatically optimizing the controllable parameters related to producing printed material on a hardcopy output device is provided, along with a hardcopy output device configured for implementing this method. Users require different types of...
US6234599 (B1), filed
Tue May 17 00:00:00 CDT 1994
, published
Tue May 22 00:00:00 CDT 2001
- CANON KK
The present invention involves recording apparatus having such a recording head that records using thermal energy. The recording head has a substrate which includes plural thermal energy generating elements for generating thermal energy, plural wiring lines...
US6568778 (B1), filed
Thu Nov 02 00:00:00 CST 2000
, published
Tue May 27 00:00:00 CDT 2003
- RICOH KK
An ink jet recording method includes the steps of inputting a set of driving pulses to a heater element so that the heater element is repeatedly activated by the driving pulses, repeatedly generating a bubble in ink in an ink path in accordance with repeated...
US6250738 (B1), filed
Thu Dec 17 00:00:00 CST 1998
, published
Tue Jun 26 00:00:00 CDT 2001
- HEWLETT PACKARD CO
An inkjet printing system includes a scalable printhead with an ink manifold. The scalable printhead is formed by mounting an ink manifold and multiple thermal inkjet printhead dies to a carrier substrate. The carrier substrate is machined to include...
US5777648 (A), filed
Thu Mar 14 00:00:00 CST 1996
, published
Tue Jul 07 00:00:00 CDT 1998
- HEWLETT PACKARD CO
An inkjet print cartridge is described which has a first fill port, for initially filling the print cartridge with ink, and a refill port for recharging the print cartridge. The refill port includes a slideable valve which is engageable with a valve on an...
US6672706 (B2), filed
Fri Apr 12 00:00:00 CDT 2002
, published
Tue Jan 06 00:00:00 CST 2004
- SILVERBROOK RES PTY LTD
A print assembly for a wide format pagewidth inkjet printer includes an elongate carrier that is mountable on a support structure of the printer and is positioned an operative distance from a platen of the printer. A number of printhead chips are mounted on...
US5325484 (A), filed
Thu Apr 30 00:00:00 CDT 1992
, published
Tue Jun 28 00:00:00 CDT 1994
- RICOH KK
An apparatus for controlling printing or display of documents represented in a structured hierarchal page description language. Documents are provided as a document data stream which can include references to external references and external data declarations...
US5337079 (A), filed
Fri Jun 01 00:00:00 CDT 1990
, published
Tue Aug 09 00:00:00 CDT 1994
- SPECTRA INC
In the particular embodiments of the invention described in the specification, the surface of a hot melt ink image in a projection transparency having curved surface portions is reoriented to provide an ink layer of substantially uniform thickness causing...
US5003322 (A), filed
Fri Jul 14 00:00:00 CDT 1989
, published
Tue Mar 26 00:00:00 CST 1991
- SPECTRA INC
In the embodiment of the hot melt ink supply unit described in the specification, a block of solid hot melt ink has a peripheral surface formed with a key configuration and a handle is removably connected to the block by a threaded projection. After insertion...
