US20040239732A1 - Ink supply arrangement for a printer - Google Patents
Ink supply arrangement for a printer Download PDFInfo
- Publication number
- US20040239732A1 US20040239732A1 US10/487,824 US48782404A US2004239732A1 US 20040239732 A1 US20040239732 A1 US 20040239732A1 US 48782404 A US48782404 A US 48782404A US 2004239732 A1 US2004239732 A1 US 2004239732A1
- Authority
- US
- United States
- Prior art keywords
- ink
- printhead
- platen
- assembly
- printer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
Definitions
- the present invention relates to an ink supply arrangement for a printer.
- the invention relates to an ink supply arrangement for an A4 pagewidth drop on demand printhead capable of printing up to 1600 dpi photographic quality at up to 160 pages per minute.
- a printhead module in such a printer can be comprised of a “Memjet” chip, being a chip having mounted thereon a vast number of thermo-actuators in micro-mechanics and micro-electromechanical systems (MEMS).
- MEMS micro-electromechanical systems
- Such actuators might be those as disclosed in U.S. Pat. No. 6,044,646 to the present applicant, however, there might be other MEMS print chips.
- the printhead being the environment within which the ink supply arrangement of the present invention is to be situated, might typically have six ink chambers and be capable of printing four color process (CMYK) as well as infra-red ink and fixative.
- CYK color process
- Each printhead module receives ink via a distribution molding that transfers the ink.
- a distribution molding that transfers the ink.
- ten modules butt together to form a complete eight inch printhead assembly suitable for printing A4 paper without the need for scanning movement of the printhead across the paper width.
- printheads themselves are modular, so complete eight inch printhead arrays can be configured to form printheads of arbitrary width.
- a second printhead assembly can be mounted on the opposite side of a paper feed path to enable double-sided high speed printing.
- An elongate pagewidth printhead assembly might be efficiently packaged into a printer housing if its ink supply hoses did not project longitudinally beyond the pagewidth extent of the assembly.
- the present invention provides a printhead assembly comprising:
- an elongate pagewidth ink distribution housing having a longitudinal extent in a pagewidth direction and conveying ink to a plurality of ink ejection nozzles substantially spanning said pagewidth, the housing including an inlet port configured to receive an ink hose via which ink is received by the housing, wherein the hose extends from the port in a direction that is substantially normal to said pagewidth direction.
- the inlet port is positioned substantially midway between respective opposed ends of the housing.
- the printhead assembly includes a pagewidth array of print modules each having said ink ejection nozzles thereon.
- the printhead assembly is configured to print color images and wherein there is provided a number of said inlet ports corresponding to the number of colors to be printed.
- ink hoses corresponding to the number of ports and all of the ink hoses extend from the ports in a direction that is substantially normal to said pagewidth direction.
- the printhead assembly is mounted within a printer and including a stepper motor for driving ancillary equipment of the printer, the stepper motor being located not beyond the longitudinal extent of the ink distribution housing.
- FIG. 1 is a front perspective view of a print engine assembly
- FIG. 2 is a rear perspective view of the print engine assembly of FIG. 1
- FIG. 3 is an exploded perspective view of the print engine assembly of FIG. 1.
- FIG. 4 is a schematic front perspective view of a printhead assembly.
- FIG. 5 is a rear schematic perspective view of the printhead assembly of FIG. 4.
- FIG. 6 is an exploded perspective illustration of the printhead assembly.
- FIG. 7 is a cross-sectional end elevational view of the printhead assembly of FIGS. 4 to 6 with the section taken through the centre of the printhead.
- FIG. 8 is a schematic cross-sectional end elevational view of the printhead assembly of FIGS. 4 to 6 taken near the left end of FIG. 4.
- FIG. 9A is a schematic end elevational view of mounting of the print chip and nozzle guard in the laminated stack structure of the printhead.
- FIG. 9B is an enlarged end elevational cross section of FIG. 9A
- FIG. 10 is an exploded perspective illustration of a printhead cover assembly.
- FIG. 11 is a schematic perspective illustration of an ink distribution molding.
- FIG. 12 is an exploded perspective illustration showing the layers forming part of a laminated ink distribution structure according to the present invention.
- FIG. 13 is a stepped sectional view from above of the structure depicted in FIGS. 9A and 9B,
- FIG. 14 is a stepped sectional view from below of the structure depicted in FIG. 13.
- FIG. 15 is a schematic perspective illustration of a first laminate layer.
- FIG. 16 is a schematic perspective illustration of a second laminate layer.
- FIG. 17 is a schematic perspective illustration of a third laminate layer.
- FIG. 18 is a schematic perspective illustration of a fourth laminate layer.
- FIG. 19 is a schematic perspective illustration of a fifth laminate layer.
- FIG. 20 is a perspective view of the air valve molding
- FIG. 21 is a rear perspective view of the right hand end of the platen
- FIG. 22 is a rear perspective view of the left hand end of the platen
- FIG. 23 is an exploded view of the platen
- FIG. 24 is a transverse cross-sectional view of the platen
- FIG. 25 is a front perspective view of the optical paper sensor arrangement
- FIG. 26 is a schematic perspective illustration of a printhead assembly and ink lines attached to an ink reservoir cassette.
- FIG. 27 is a partly exploded view of FIG. 26.
- FIGS. 1 to 3 of the accompanying drawings there is schematically depicted the core components of a print engine assembly, showing the general environment in which the laminated ink distribution structure of the present invention can be located.
- the print engine assembly includes a chassis 10 fabricated from pressed steel, aluminum, plastics or other rigid material. Chassis 10 is intended to be mounted within the body of a printer and serves to mount a printhead assembly 11 , a paper feed mechanism and other related components within the external plastics casing of a printer.
- the chassis 10 supports the printhead assembly 11 such that ink is ejected therefrom and onto a sheet of paper or other print medium being transported below the printhead then through exit slot 19 by the feed mechanism.
- the paper feed mechanism includes a feed roller 12 , feed idler rollers 13 , a platen generally designated as 14 , exit rollers 15 and a pin wheel assembly 16 , all driven by a stepper motor 17 .
- These paper feed components are mounted between a pair of bearing moldings 18 , which are in turn mounted to the chassis 10 at each respective end thereof.
- a printhead assembly 11 is mounted to the chassis 10 by means of respective printhead spacers 20 mounted to the chassis 10 .
- the spacer moldings 20 increase the printhead assembly length to 220 mm allowing clearance on either side of 210 mm wide paper.
- the printhead construction is shown generally in FIGS. 4 to 8 .
- the printhead assembly 11 includes a printed circuit board (PCB) 21 having mounted thereon various electronic components including a 64 MB DRAM 22 , a PEC chip 23 , a QA chip connector 24 , a microcontroller 25 , and a dual motor driver chip 26 .
- the printhead is typically 203 mm long and has ten print chips 27 (FIG. 13), each typically 21 mm long. These print chips 27 are each disposed at a slight angle to the longitudinal axis of the printhead (see FIG. 12 ), with a slight overlap between each print chip which enables continuous transmission of ink over the entire length of the array.
- Each print chip 27 is electronically connected to an end of one of the tape automated bond (TAB) films 28 , the other end of which is maintained in electrical contact with the undersurface of the printed circuit board 21 by means of a TAB film backing pad 29 .
- TAB tape automated bond
- each print chip 27 is approximately 21 mm long, less than 1 mm wide and about 0.3 mm high, and has on its lower surface thousands of MEMS inkjet nozzles 30 , shown schematically in FIGS. 9A and 9B, arranged generally in six lines—one for each ink type to be applied. Each line of nozzles may follow a staggered pattern to allow closer dot spacing. Six corresponding lines of ink passages 31 extend through from the rear of the print chip to transport ink to the rear of each nozzle. To protect the delicate nozzles on the surface of the print chip each print chip has a nozzle guard 43 , best seen in FIG. 9A, with microapertures 44 aligned with the nozzles 30 , so that the ink drops ejected at high speed from the nozzles pass through these microapertures to be deposited on the paper passing over the platen 14 .
- Ink is delivered to the print chips via a distribution molding 35 and laminated stack 36 arrangement forming part of the printhead 11 .
- Ink from an ink cassette 93 (FIGS. 26 and 27) is relayed via individual ink hoses 94 to individual ink inlet ports 34 integrally molded with a plastics duct cover 39 which forms a lid over the plastics distribution molding 35 .
- the ink inlet ports 34 are positioned so as to enable the ink hoses 94 to project laterally from the ink distribution molding 35 .
- the ink inlet ports 34 are positioned at a midpoint between respective opposed ends of the distribution molding 35 .
- a housing within which the printhead is situated need not be significantly wider than the overall length of the printhead.
- ink enters the printhead from one of its ends.
- Such arrangements are not space-efficient in the length-wise direction of the head due to the need to fit the hoses between the end of the printhead and the inside surface of the printer casing.
- a stepper motor 17 situated at one end of the printhead.
- stepper motor 17 instead of taking up space at the end of the printhead, can be situated alongside the printhead, above it or beneath it and torque from this motor can be relayed to the feed roller 12 , feed idler rollers 13 , platen 14 , exit rollers 15 and pinwheel assembly 16 via a space-efficient transmission which might comprise intermeshing gears or a drive belt.
- a space-efficient transmission which might comprise intermeshing gears or a drive belt.
- Further advantage of this length-wise printer-into-housing space efficiency can be had by positioning the ink inlet ports 34 so as to extend laterally from the ink distribution molding as depicted so that the ink delivery hoses do not encroach on lengthwise space at the end of the molding.
- the distribution molding 35 includes six individual longitudinal ink ducts 40 and an air duct 41 which extend throughout the length of the array. Ink is transferred from the inlet ports 34 to respective ink ducts 40 via individual cross-flow ink channels 42 , as best seen with reference to FIG. 7. It should be noted in this regard that although there are six ducts depicted, a different number of ducts might be provided. Six ducts are suitable for a printer capable of printing four color process (CMYK) as well as infra-red ink and fixative.
- CYK color process
- Air is delivered to the air duct 41 via an air inlet port 61 , to supply air to each print chip 27 , as described later with reference to FIGS. 6 to 8 , 20 and 21 .
- a number of laminated layers forming a laminated ink distribution stack 36 Situated within a longitudinally extending stack recess 45 formed in the underside of distribution molding 35 are a number of laminated layers forming a laminated ink distribution stack 36 .
- the layers of the laminate are typically formed of micro-molded plastics material.
- the TAB film 28 extends from the undersurface of the printhead PCB 21 , around the rear of the distribution molding 35 to be received within a respective TAB film recess 46 (FIG. 21), a number of which are situated along a chip housing layer 47 of the laminated stack 36 .
- the TAB film relays electrical signals from the printed circuit board 21 to individual print chips 27 supported by the laminated structure.
- FIG. 10 depicts the distribution molding cover 39 formed as a plastics molding and including a number of positioning spigots 48 which serve to locate the upper printhead cover 49 thereon.
- an ink transfer port 50 connects one of the ink ducts 39 (the fourth duct from the left) down to one of six lower ink ducts or transitional ducts 51 in the underside of the distribution molding. All of the ink ducts 40 have corresponding transfer ports 50 communicating with respective ones of the transitional ducts 51 .
- the transitional ducts 51 are parallel with each other but angled acutely with respect to the ink ducts 40 so as to line up with the rows of ink holes of the first layer 52 of the laminated stack 36 to be described below.
- the first layer 52 incorporates twenty four individual ink holes 53 for each of ten print chips 27 . That is, where ten such print chips are provided, the first layer 52 includes two hundred and forty ink holes 53 . The first layer 52 also includes a row of air holes 54 alongside one longitudinal edge thereof.
- the individual groups of twenty four ink holes 53 are formed generally in a rectangular array with aligned rows of ink holes. Each row of four ink holes is aligned with a transitional duct 51 and is parallel to a respective print chip.
- the undersurface of the first layer 52 includes underside recesses 55 .
- Each recess 55 communicates with one of the ink holes of the two centre-most rows of four holes 53 (considered in the direction transversely across the layer 52 ). That is, holes 53 a (FIG. 13) deliver ink to the right hand recess 55 a shown in FIG. 14, whereas the holes 53 b deliver ink to the left most underside recesses 55 b shown in FIG. 14.
- the second layer 56 includes a pair of slots 57 , each receiving ink from one of the underside recesses 55 of the first layer.
- the second layer 56 also includes ink holes 53 which are aligned with the outer two sets of ink holes 53 of the first layer 52 . That is, ink passing through the outer sixteen ink holes 53 of the first layer 52 for each print chip pass directly through corresponding holes 53 passing through the second layer 56 .
- the underside of the second layer 56 has formed therein a number of transversely extending channels 58 to relay ink passing through ink holes 53 c and 53 d toward the centre. These channels extend to align with a pair of slots 59 formed through a third layer 60 of the laminate.
- the third layer 60 of the laminate includes four slots 59 corresponding with each print chip, with two inner slots being aligned with the pair of slots formed in the second layer 56 and outer slots between which the inner slots reside.
- the third layer 60 also includes an array of air holes 54 aligned with the corresponding air hole arrays 54 provided in the first and second layers 52 and 56 .
- the third layer 60 has only eight remaining ink holes 53 corresponding with each print chip. These outermost holes 53 are aligned with the outermost holes 53 provided in the first and second laminate layers. As shown in FIGS. 9A and 9B, the third layer 60 includes in its underside surface a transversely extending channel 61 corresponding to each hole 53 . These channels 61 deliver ink from the corresponding hole 53 to a position just outside the alignment of slots 59 therethrough.
- the top three layers of the laminated stack 36 thus serve to direct the ink (shown by broken hatched lines in FIG. 9B) from the more widely spaced ink ducts 40 of the distribution molding to slots aligned with the ink passages 31 through the upper surface of each print chip 27 .
- the slots 57 and 59 can in fact be comprised of discrete co-linear spaced slot segments.
- the fourth layer 62 of the laminated stack 36 includes an array of ten chip-slots 65 each receiving the upper portion of a respective print chip 27 .
- the fifth and final layer 64 also includes an array of chip-slots 65 which receive the chip and nozzle guard assembly 43 .
- the TAB film 28 is sandwiched between the fourth and fifth layers 62 and 64 , one or both of which can be provided with recesses to accommodate the thickness of the TAB film.
- the laminated stack is formed as a precision micro-molding, injection molded in an Acetal type material. It accommodates the array of print chips 27 with the TAB film already attached and mates with the cover molding 39 described earlier.
- Rib details in the underside of the micro-molding provides support for the TAB film when they are bonded together.
- the TAB film forms the underside wall of the printhead module, as there is sufficient structural integrity between the pitch of the ribs to support a flexible film.
- the edges of the TAB film seal on the underside wall of the cover molding 39 .
- the chip is bonded onto one hundred micron wide ribs that run the length of the micro-molding, providing a final ink feed to the print nozzles.
- the design of the micro-molding allow for a physical overlap of the print chips when they are butted in a line. Because the printhead chips now form a continuous strip with a generous tolerance, they can be adjusted digitally to produce a near perfect print pattern rather than relying on very close toleranced moldings and exotic materials to perform the same function.
- the pitch of the modules is typically 20.33 mm.
- the individual layers of the laminated stack as well as the cover molding 39 and distribution molding can be glued or otherwise bonded together to provide a sealed unit.
- the ink paths can be sealed by a bonded transparent plastic film serving to indicate when inks are in the ink paths, so they can be fully capped off when the upper part of the adhesive film is folded over. Ink charging is then complete.
- the four upper layers 52 , 56 , 60 , 62 of the laminated stack 36 have aligned air holes 54 which communicate with air passages 63 formed as channels formed in the bottom surface of the fourth layer 62 , as shown in FIGS. 9 b and 13 .
- These passages provide pressurised air to the space between the print chip surface and the nozzle guard 43 whilst the printer is in operation. Air from this pressurised zone passes through the micro-apertures 44 in the nozzle guard, thus preventing the build-up of any dust or unwanted contaminants at those apertures.
- This supply of pressurised air can be turned off to prevent ink drying on the nozzle surfaces during periods of non-use of the printer, control of this air supply being by means of the air valve assembly shown in FIGS. 6 to 8 , 20 and 21 .
- an air valve molding 66 formed as a channel with a series of apertures 67 in its base.
- the spacing of these apertures corresponds to air passages 68 formed in the base of the air duct 41 (see FIG. 6), the air valve molding being movable longitudinally within the air duct so that the apertures 67 can be brought into alignment with passages 68 to allow supply the pressurized air through the laminated stack to the cavity between the print chip and the nozzle guard, or moved out of alignment to close off the air supply.
- Compression springs 69 maintain a sealing inter-engagement of the bottom of the air valve molding 66 with the base of the air duct 41 to prevent leakage when the valve is closed.
- the air valve molding 66 has a cam follower 70 extending from one end thereof, which engages an air valve cam surface 71 on an end cap 74 of the platen 14 so as to selectively move the air valve molding longitudinally within the air duct 41 according to the rotational positional of the multi-function platen 14 , which may be rotated between printing, capping and blotting positions depending on the operational status of the printer, as will be described below in more detail with reference to FIGS. 21 to 24 .
- the cam When the platen 14 is in its rotational position for printing, the cam holds the air valve in its open position to supply air to the print chip surface, whereas when the platen is rotated to the non-printing position in which it caps off the micro-apertures of the nozzle guard, the cam moves the air valve molding to the valve closed position.
- the platen member 14 extends parallel to the printhead, supported by a rotary shaft 73 mounted in bearing molding 18 and rotatable by means of gear 79 (see FIG. 3).
- the shaft is provided with a right hand end cap 74 and left hand end cap 75 at respective ends, having cams 76 , 77 .
- the platen member 14 has a platen surface 78 , a capping portion 80 and an exposed blotting portion 81 extending along its length, each separated by 120°.
- the platen member is rotated so that the platen surface 78 is positioned opposite the printhead so that the platen surface acts as a support for that portion of the paper being printed at the time.
- the platen member is rotated so that the capping portion 80 contacts the bottom of the printhead, sealing in a locus surrounding the microapertures 44 .
- This in combination with the closure of the air valve by means of the air valve arrangement when the platen 14 is in its capping position, maintains a closed atmosphere at the print nozzle surface. This serves to reduce evaporation of the ink solvent (usually water) and thus reduce drying of ink on the print nozzles while the printer is not in use.
- the third function of the rotary platen member is as an ink blotter to receive ink from priming of the print nozzles at printer start up or maintenance operations of the printer.
- the platen member 14 is rotated so that the exposed blotting portion 81 is located in the ink ejection path opposite the nozzle guard 43 .
- the exposed blotting portion 81 is an exposed part of a body of blotting material 82 inside the platen member 14 , so that the ink received on the exposed portion 81 is drawn into the body of the platen member.
- the platen member consists generally of an extruded or molded hollow platen body 83 which forms the platen surface 78 and receives the shaped body of blotting material 82 of which a part projects through a longitudinal slot in the platen body to form the exposed blotting surface 81 .
- a flat portion 84 of the platen body 83 serves as a base for attachment of the capping member 80 , which consists of a capper housing 85 , a capper seal member 86 and a foam member 87 for contacting the nozzle guard 43 .
- each bearing molding 18 rides on a pair of vertical rails 101 . That is, the capping assembly is mounted to four vertical rails 101 enabling the assembly to move vertically. A spring 102 under either end of the capping assembly biases the assembly into a raised position, maintaining cams 76 , 77 in contact with the spacer projections 100 .
- the printhead 11 is capped when not is use by the full-width capping member 80 using the elastomeric (or similar) seal 86 .
- the main roller drive motor is reversed. This brings a reversing gear into contact with the gear 79 on the end of the platen assembly and rotates it into one of its three functional positions, each separated by 120°.
- the cams 76 , 77 on the platen end caps 74 , 75 co-operate with projections 100 on the respective printhead spacers 20 to control the spacing between the platen member and the printhead depending on the rotary position of the platen member. In this manner, the platen is moved away from the printhead during the transition between platen positions to provide sufficient clearance from the printhead and moved back to the appropriate distances for its respective paper support, capping and blotting functions.
- the cam arrangement for the rotary platen provides a mechanism for fine adjustment of the distance between the platen surface and the printer nozzles by slight rotation of the platen 14 . This allows compensation of the nozzle-platen distance in response to the thickness of the paper or other material being printed, as detected by the optical paper thickness sensor arrangement illustrated in FIG. 25.
- the optical paper sensor includes an optical sensor 88 mounted on the lower surface of the PCB 21 and a sensor flag arrangement mounted on the arms 89 protruding from the distribution molding.
- the flag arrangement comprises a sensor flag member 90 mounted on a shaft 91 which is biased by torsion spring 92 .
- the optical sensor detects this movement of the flag member and the PCB responds to the detected paper thickness by causing compensatory rotation of the platen 14 to optimize the distance between the paper surface and the nozzles.
- FIGS. 26 and 27 show attachment of the illustrated printhead assembly to a replaceable ink cassette 93 .
- Six different inks are supplied to the printhead through hoses 94 leading from an array of female ink valves 95 located inside the printer body.
- the replaceable cassette 93 containing a six compartment ink bladder and corresponding male valve array is inserted into the printer and mated to the valves 95 .
- the cassette also contains an air inlet 96 and air filter (not shown), and mates to the air intake connector 97 situated beside the ink valves, leading to the air pump 98 supplying filtered air to the printhead.
- a QA chip is included in the cassette.
- the QA chip meets with a contact 99 located between the ink valves 95 and air intake connector 96 in the printer as the cassette is inserted to provide communication to the QA chip connector 24 on the PCB.
Abstract
A printhead (11) assembly includes an elongate pagewidth ink distribution housing (35) that has a longitudinal extent in a pagewidth direction and conveys ink to a number of ink ejection nozzles (30) spanning the pagewidth. The housing (35) includes inlet ports (34) configured to receive ink hoses (94) via which different colored inks are received by the housing (35). The hoses (94) extend from the ports (34) in a direction that is normal to the pagewidth direction of the printhead (11) so as to enable the printhead (11) to be fitted within a compact housing.
Description
- The present invention relates to an ink supply arrangement for a printer.
- More particularly, though not exclusively, the invention relates to an ink supply arrangement for an A4 pagewidth drop on demand printhead capable of printing up to 1600 dpi photographic quality at up to 160 pages per minute.
- The overall design of a printer in which the arrangement can be utilized revolves around the use of replaceable printhead modules in an array approximately 8 inches (20 cm) long. An advantage of such a system is the ability to easily remove and replace any defective modules in a printhead array. This would eliminate having to scrap an entire printhead if only one chip is defective.
- A printhead module in such a printer can be comprised of a “Memjet” chip, being a chip having mounted thereon a vast number of thermo-actuators in micro-mechanics and micro-electromechanical systems (MEMS). Such actuators might be those as disclosed in U.S. Pat. No. 6,044,646 to the present applicant, however, there might be other MEMS print chips.
- The printhead, being the environment within which the ink supply arrangement of the present invention is to be situated, might typically have six ink chambers and be capable of printing four color process (CMYK) as well as infra-red ink and fixative.
- Each printhead module receives ink via a distribution molding that transfers the ink. Typically, ten modules butt together to form a complete eight inch printhead assembly suitable for printing A4 paper without the need for scanning movement of the printhead across the paper width.
- The printheads themselves are modular, so complete eight inch printhead arrays can be configured to form printheads of arbitrary width.
- Additionally, a second printhead assembly can be mounted on the opposite side of a paper feed path to enable double-sided high speed printing.
- An elongate pagewidth printhead assembly might be efficiently packaged into a printer housing if its ink supply hoses did not project longitudinally beyond the pagewidth extent of the assembly.
- It is an object of the present invention to provide an ink supply arrangement for a printer.
- It is another object of the present invention to provide a printhead assembly receiving ink from a hose that does not extend beyond the longitudinal or pagewidth extent of the assembly.
- It is another object of the present invention to provide an ink supply arrangement suitable for the pagewidth printhead assembly as broadly described herein.
- It is another object of the present invention to provide an ink supply arrangement for a printhead assembly on which there is mounted a plurality of print chips, each comprising a plurality of MEMS printing devices.
- It is yet another object of the present invention to provide a method of distributing ink to print modules in a printhead assembly of a printer.
- The present invention provides a printhead assembly comprising:
- an elongate pagewidth ink distribution housing having a longitudinal extent in a pagewidth direction and conveying ink to a plurality of ink ejection nozzles substantially spanning said pagewidth, the housing including an inlet port configured to receive an ink hose via which ink is received by the housing, wherein the hose extends from the port in a direction that is substantially normal to said pagewidth direction.
- Preferably the inlet port is positioned substantially midway between respective opposed ends of the housing.
- Preferably the printhead assembly includes a pagewidth array of print modules each having said ink ejection nozzles thereon.
- Preferably the printhead assembly is configured to print color images and wherein there is provided a number of said inlet ports corresponding to the number of colors to be printed.
- Preferably there is provided a number of ink hoses corresponding to the number of ports and all of the ink hoses extend from the ports in a direction that is substantially normal to said pagewidth direction.
- Preferably the printhead assembly is mounted within a printer and including a stepper motor for driving ancillary equipment of the printer, the stepper motor being located not beyond the longitudinal extent of the ink distribution housing.
- A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings wherein:
- FIG. 1 is a front perspective view of a print engine assembly
- FIG. 2 is a rear perspective view of the print engine assembly of FIG. 1
- FIG. 3 is an exploded perspective view of the print engine assembly of FIG. 1.
- FIG. 4 is a schematic front perspective view of a printhead assembly.
- FIG. 5 is a rear schematic perspective view of the printhead assembly of FIG. 4.
- FIG. 6 is an exploded perspective illustration of the printhead assembly.
- FIG. 7 is a cross-sectional end elevational view of the printhead assembly of FIGS.4 to 6 with the section taken through the centre of the printhead.
- FIG. 8 is a schematic cross-sectional end elevational view of the printhead assembly of FIGS.4 to 6 taken near the left end of FIG. 4.
- FIG. 9A is a schematic end elevational view of mounting of the print chip and nozzle guard in the laminated stack structure of the printhead.
- FIG. 9B is an enlarged end elevational cross section of FIG. 9A
- FIG. 10 is an exploded perspective illustration of a printhead cover assembly.
- FIG. 11 is a schematic perspective illustration of an ink distribution molding.
- FIG. 12 is an exploded perspective illustration showing the layers forming part of a laminated ink distribution structure according to the present invention.
- FIG. 13 is a stepped sectional view from above of the structure depicted in FIGS. 9A and 9B,
- FIG. 14 is a stepped sectional view from below of the structure depicted in FIG. 13.
- FIG. 15 is a schematic perspective illustration of a first laminate layer.
- FIG. 16 is a schematic perspective illustration of a second laminate layer.
- FIG. 17 is a schematic perspective illustration of a third laminate layer.
- FIG. 18 is a schematic perspective illustration of a fourth laminate layer.
- FIG. 19 is a schematic perspective illustration of a fifth laminate layer.
- FIG. 20 is a perspective view of the air valve molding
- FIG. 21 is a rear perspective view of the right hand end of the platen
- FIG. 22 is a rear perspective view of the left hand end of the platen
- FIG. 23 is an exploded view of the platen
- FIG. 24 is a transverse cross-sectional view of the platen
- FIG. 25 is a front perspective view of the optical paper sensor arrangement
- FIG. 26 is a schematic perspective illustration of a printhead assembly and ink lines attached to an ink reservoir cassette.
- FIG. 27 is a partly exploded view of FIG. 26.
- In FIGS.1 to 3 of the accompanying drawings there is schematically depicted the core components of a print engine assembly, showing the general environment in which the laminated ink distribution structure of the present invention can be located. The print engine assembly includes a
chassis 10 fabricated from pressed steel, aluminum, plastics or other rigid material.Chassis 10 is intended to be mounted within the body of a printer and serves to mount aprinthead assembly 11, a paper feed mechanism and other related components within the external plastics casing of a printer. - In general terms, the
chassis 10 supports theprinthead assembly 11 such that ink is ejected therefrom and onto a sheet of paper or other print medium being transported below the printhead then throughexit slot 19 by the feed mechanism. The paper feed mechanism includes afeed roller 12, feedidler rollers 13, a platen generally designated as 14,exit rollers 15 and apin wheel assembly 16, all driven by astepper motor 17. These paper feed components are mounted between a pair of bearingmoldings 18, which are in turn mounted to thechassis 10 at each respective end thereof. - A
printhead assembly 11 is mounted to thechassis 10 by means ofrespective printhead spacers 20 mounted to thechassis 10. The spacer moldings 20 increase the printhead assembly length to 220 mm allowing clearance on either side of 210 mm wide paper. - The printhead construction is shown generally in FIGS.4 to 8.
- The
printhead assembly 11 includes a printed circuit board (PCB) 21 having mounted thereon various electronic components including a 64MB DRAM 22, aPEC chip 23, aQA chip connector 24, amicrocontroller 25, and a dualmotor driver chip 26. The printhead is typically 203 mm long and has ten print chips 27 (FIG. 13), each typically 21 mm long. These print chips 27 are each disposed at a slight angle to the longitudinal axis of the printhead (see FIG. 12 ), with a slight overlap between each print chip which enables continuous transmission of ink over the entire length of the array. Eachprint chip 27 is electronically connected to an end of one of the tape automated bond (TAB)films 28, the other end of which is maintained in electrical contact with the undersurface of the printedcircuit board 21 by means of a TABfilm backing pad 29. - The preferred print chip construction is as described in U.S. Pat. No. 6,044,646 by the present applicant. Each
such print chip 27 is approximately 21 mm long, less than 1 mm wide and about 0.3 mm high, and has on its lower surface thousands ofMEMS inkjet nozzles 30, shown schematically in FIGS. 9A and 9B, arranged generally in six lines—one for each ink type to be applied. Each line of nozzles may follow a staggered pattern to allow closer dot spacing. Six corresponding lines ofink passages 31 extend through from the rear of the print chip to transport ink to the rear of each nozzle. To protect the delicate nozzles on the surface of the print chip each print chip has anozzle guard 43, best seen in FIG. 9A, withmicroapertures 44 aligned with thenozzles 30, so that the ink drops ejected at high speed from the nozzles pass through these microapertures to be deposited on the paper passing over theplaten 14. - Ink is delivered to the print chips via a
distribution molding 35 andlaminated stack 36 arrangement forming part of theprinthead 11. Ink from an ink cassette 93 (FIGS. 26 and 27) is relayed viaindividual ink hoses 94 to individualink inlet ports 34 integrally molded with aplastics duct cover 39 which forms a lid over theplastics distribution molding 35. As can be seen in FIGS. 4 and 6, theink inlet ports 34 are positioned so as to enable theink hoses 94 to project laterally from theink distribution molding 35. In the preferred embodiment, theink inlet ports 34 are positioned at a midpoint between respective opposed ends of thedistribution molding 35. By having theinlet ports 34 so positioned, a housing within which the printhead is situated need not be significantly wider than the overall length of the printhead. In previously known printheads, ink enters the printhead from one of its ends. Such arrangements are not space-efficient in the length-wise direction of the head due to the need to fit the hoses between the end of the printhead and the inside surface of the printer casing. In the depicted embodiment of the present invention, there is shown astepper motor 17 situated at one end of the printhead. This configuration is not essential to the invention asstepper motor 17, instead of taking up space at the end of the printhead, can be situated alongside the printhead, above it or beneath it and torque from this motor can be relayed to thefeed roller 12, feedidler rollers 13,platen 14,exit rollers 15 andpinwheel assembly 16 via a space-efficient transmission which might comprise intermeshing gears or a drive belt. Further advantage of this length-wise printer-into-housing space efficiency can be had by positioning theink inlet ports 34 so as to extend laterally from the ink distribution molding as depicted so that the ink delivery hoses do not encroach on lengthwise space at the end of the molding. - The
distribution molding 35 includes six individuallongitudinal ink ducts 40 and anair duct 41 which extend throughout the length of the array. Ink is transferred from theinlet ports 34 torespective ink ducts 40 via individualcross-flow ink channels 42, as best seen with reference to FIG. 7. It should be noted in this regard that although there are six ducts depicted, a different number of ducts might be provided. Six ducts are suitable for a printer capable of printing four color process (CMYK) as well as infra-red ink and fixative. - Air is delivered to the
air duct 41 via anair inlet port 61, to supply air to eachprint chip 27, as described later with reference to FIGS. 6 to 8, 20 and 21. - Situated within a longitudinally extending
stack recess 45 formed in the underside ofdistribution molding 35 are a number of laminated layers forming a laminatedink distribution stack 36. The layers of the laminate are typically formed of micro-molded plastics material. TheTAB film 28 extends from the undersurface of theprinthead PCB 21, around the rear of thedistribution molding 35 to be received within a respective TAB film recess 46 (FIG. 21), a number of which are situated along achip housing layer 47 of thelaminated stack 36. The TAB film relays electrical signals from the printedcircuit board 21 toindividual print chips 27 supported by the laminated structure. - The distribution molding,
laminated stack 36 and associated components are best described with reference to FIGS. 7 to 19. - FIG. 10 depicts the
distribution molding cover 39 formed as a plastics molding and including a number ofpositioning spigots 48 which serve to locate theupper printhead cover 49 thereon. - As shown in FIG. 7, an
ink transfer port 50 connects one of the ink ducts 39 (the fourth duct from the left) down to one of six lower ink ducts ortransitional ducts 51 in the underside of the distribution molding. All of theink ducts 40 have correspondingtransfer ports 50 communicating with respective ones of thetransitional ducts 51. Thetransitional ducts 51 are parallel with each other but angled acutely with respect to theink ducts 40 so as to line up with the rows of ink holes of thefirst layer 52 of thelaminated stack 36 to be described below. - The
first layer 52 incorporates twenty four individual ink holes 53 for each of tenprint chips 27. That is, where ten such print chips are provided, thefirst layer 52 includes two hundred and forty ink holes 53. Thefirst layer 52 also includes a row ofair holes 54 alongside one longitudinal edge thereof. - The individual groups of twenty four
ink holes 53 are formed generally in a rectangular array with aligned rows of ink holes. Each row of four ink holes is aligned with atransitional duct 51 and is parallel to a respective print chip. - The undersurface of the
first layer 52 includes underside recesses 55. Eachrecess 55 communicates with one of the ink holes of the two centre-most rows of four holes 53 (considered in the direction transversely across the layer 52). That is, holes 53 a (FIG. 13) deliver ink to theright hand recess 55 a shown in FIG. 14, whereas theholes 53 b deliver ink to the left most underside recesses 55 b shown in FIG. 14. - The
second layer 56 includes a pair ofslots 57, each receiving ink from one of the underside recesses 55 of the first layer. - The
second layer 56 also includes ink holes 53 which are aligned with the outer two sets of ink holes 53 of thefirst layer 52. That is, ink passing through the outer sixteenink holes 53 of thefirst layer 52 for each print chip pass directly through correspondingholes 53 passing through thesecond layer 56. - The underside of the
second layer 56 has formed therein a number of transversely extendingchannels 58 to relay ink passing through ink holes 53 c and 53 d toward the centre. These channels extend to align with a pair ofslots 59 formed through athird layer 60 of the laminate. It should be noted in this regard that thethird layer 60 of the laminate includes fourslots 59 corresponding with each print chip, with two inner slots being aligned with the pair of slots formed in thesecond layer 56 and outer slots between which the inner slots reside. - The
third layer 60 also includes an array ofair holes 54 aligned with the correspondingair hole arrays 54 provided in the first andsecond layers - The
third layer 60 has only eight remaining ink holes 53 corresponding with each print chip. Theseoutermost holes 53 are aligned with theoutermost holes 53 provided in the first and second laminate layers. As shown in FIGS. 9A and 9B, thethird layer 60 includes in its underside surface a transversely extendingchannel 61 corresponding to eachhole 53. Thesechannels 61 deliver ink from the correspondinghole 53 to a position just outside the alignment ofslots 59 therethrough. - As best seen in FIGS. 9A and 9B, the top three layers of the
laminated stack 36 thus serve to direct the ink (shown by broken hatched lines in FIG. 9B) from the more widely spacedink ducts 40 of the distribution molding to slots aligned with theink passages 31 through the upper surface of eachprint chip 27. - As shown in FIG. 13, which is a view from above the laminated stack, the
slots - The
fourth layer 62 of thelaminated stack 36 includes an array of ten chip-slots 65 each receiving the upper portion of arespective print chip 27. - The fifth and
final layer 64 also includes an array of chip-slots 65 which receive the chip andnozzle guard assembly 43. - The
TAB film 28 is sandwiched between the fourth andfifth layers - The laminated stack is formed as a precision micro-molding, injection molded in an Acetal type material. It accommodates the array of
print chips 27 with the TAB film already attached and mates with thecover molding 39 described earlier. - Rib details in the underside of the micro-molding provides support for the TAB film when they are bonded together. The TAB film forms the underside wall of the printhead module, as there is sufficient structural integrity between the pitch of the ribs to support a flexible film. The edges of the TAB film seal on the underside wall of the
cover molding 39. The chip is bonded onto one hundred micron wide ribs that run the length of the micro-molding, providing a final ink feed to the print nozzles. - The design of the micro-molding allow for a physical overlap of the print chips when they are butted in a line. Because the printhead chips now form a continuous strip with a generous tolerance, they can be adjusted digitally to produce a near perfect print pattern rather than relying on very close toleranced moldings and exotic materials to perform the same function. The pitch of the modules is typically 20.33 mm.
- The individual layers of the laminated stack as well as the
cover molding 39 and distribution molding can be glued or otherwise bonded together to provide a sealed unit. The ink paths can be sealed by a bonded transparent plastic film serving to indicate when inks are in the ink paths, so they can be fully capped off when the upper part of the adhesive film is folded over. Ink charging is then complete. - The four
upper layers laminated stack 36 have aligned air holes 54 which communicate withair passages 63 formed as channels formed in the bottom surface of thefourth layer 62, as shown in FIGS. 9b and 13. These passages provide pressurised air to the space between the print chip surface and thenozzle guard 43 whilst the printer is in operation. Air from this pressurised zone passes through the micro-apertures 44 in the nozzle guard, thus preventing the build-up of any dust or unwanted contaminants at those apertures. This supply of pressurised air can be turned off to prevent ink drying on the nozzle surfaces during periods of non-use of the printer, control of this air supply being by means of the air valve assembly shown in FIGS. 6 to 8, 20 and 21. - With reference to FIGS.6 to 8, within the
air duct 41 of the printhead there is located anair valve molding 66 formed as a channel with a series of apertures 67 in its base. The spacing of these apertures corresponds to airpassages 68 formed in the base of the air duct 41 (see FIG. 6), the air valve molding being movable longitudinally within the air duct so that the apertures 67 can be brought into alignment withpassages 68 to allow supply the pressurized air through the laminated stack to the cavity between the print chip and the nozzle guard, or moved out of alignment to close off the air supply. Compression springs 69 maintain a sealing inter-engagement of the bottom of theair valve molding 66 with the base of theair duct 41 to prevent leakage when the valve is closed. - The
air valve molding 66 has acam follower 70 extending from one end thereof, which engages an airvalve cam surface 71 on anend cap 74 of theplaten 14 so as to selectively move the air valve molding longitudinally within theair duct 41 according to the rotational positional of themulti-function platen 14, which may be rotated between printing, capping and blotting positions depending on the operational status of the printer, as will be described below in more detail with reference to FIGS. 21 to 24. When theplaten 14 is in its rotational position for printing, the cam holds the air valve in its open position to supply air to the print chip surface, whereas when the platen is rotated to the non-printing position in which it caps off the micro-apertures of the nozzle guard, the cam moves the air valve molding to the valve closed position. - With reference to FIGS.21 to 24, the
platen member 14 extends parallel to the printhead, supported by arotary shaft 73 mounted in bearingmolding 18 and rotatable by means of gear 79 (see FIG. 3). The shaft is provided with a righthand end cap 74 and lefthand end cap 75 at respective ends, havingcams - The
platen member 14 has aplaten surface 78, a cappingportion 80 and an exposedblotting portion 81 extending along its length, each separated by 120°. During printing, the platen member is rotated so that theplaten surface 78 is positioned opposite the printhead so that the platen surface acts as a support for that portion of the paper being printed at the time. When the printer is not in use, the platen member is rotated so that the cappingportion 80 contacts the bottom of the printhead, sealing in a locus surrounding themicroapertures 44. This, in combination with the closure of the air valve by means of the air valve arrangement when theplaten 14 is in its capping position, maintains a closed atmosphere at the print nozzle surface. This serves to reduce evaporation of the ink solvent (usually water) and thus reduce drying of ink on the print nozzles while the printer is not in use. - The third function of the rotary platen member is as an ink blotter to receive ink from priming of the print nozzles at printer start up or maintenance operations of the printer. During this printer mode, the
platen member 14 is rotated so that the exposedblotting portion 81 is located in the ink ejection path opposite thenozzle guard 43. The exposedblotting portion 81 is an exposed part of a body of blottingmaterial 82 inside theplaten member 14, so that the ink received on the exposedportion 81 is drawn into the body of the platen member. - Further details of the platen member construction may be seen from FIGS. 23 and 24. The platen member consists generally of an extruded or molded
hollow platen body 83 which forms theplaten surface 78 and receives the shaped body of blottingmaterial 82 of which a part projects through a longitudinal slot in the platen body to form the exposedblotting surface 81. Aflat portion 84 of theplaten body 83 serves as a base for attachment of the cappingmember 80, which consists of acapper housing 85, acapper seal member 86 and afoam member 87 for contacting thenozzle guard 43. - With reference again to FIG. 1, each bearing
molding 18 rides on a pair ofvertical rails 101. That is, the capping assembly is mounted to fourvertical rails 101 enabling the assembly to move vertically. Aspring 102 under either end of the capping assembly biases the assembly into a raised position, maintainingcams spacer projections 100. - The
printhead 11 is capped when not is use by the full-width capping member 80 using the elastomeric (or similar)seal 86. In order to rotate theplaten assembly 14, the main roller drive motor is reversed. This brings a reversing gear into contact with thegear 79 on the end of the platen assembly and rotates it into one of its three functional positions, each separated by 120°. - The
cams projections 100 on therespective printhead spacers 20 to control the spacing between the platen member and the printhead depending on the rotary position of the platen member. In this manner, the platen is moved away from the printhead during the transition between platen positions to provide sufficient clearance from the printhead and moved back to the appropriate distances for its respective paper support, capping and blotting functions. - In addition, the cam arrangement for the rotary platen provides a mechanism for fine adjustment of the distance between the platen surface and the printer nozzles by slight rotation of the
platen 14. This allows compensation of the nozzle-platen distance in response to the thickness of the paper or other material being printed, as detected by the optical paper thickness sensor arrangement illustrated in FIG. 25. - The optical paper sensor includes an
optical sensor 88 mounted on the lower surface of thePCB 21 and a sensor flag arrangement mounted on thearms 89 protruding from the distribution molding. The flag arrangement comprises asensor flag member 90 mounted on ashaft 91 which is biased bytorsion spring 92. As paper enters the feed rollers, the lowermost portion of the flag member contacts the paper and rotates against the bias of thespring 92 by an amount dependent on the paper thickness. The optical sensor detects this movement of the flag member and the PCB responds to the detected paper thickness by causing compensatory rotation of theplaten 14 to optimize the distance between the paper surface and the nozzles. - FIGS. 26 and 27 show attachment of the illustrated printhead assembly to a
replaceable ink cassette 93. Six different inks are supplied to the printhead throughhoses 94 leading from an array offemale ink valves 95 located inside the printer body. Thereplaceable cassette 93 containing a six compartment ink bladder and corresponding male valve array is inserted into the printer and mated to thevalves 95. The cassette also contains anair inlet 96 and air filter (not shown), and mates to theair intake connector 97 situated beside the ink valves, leading to theair pump 98 supplying filtered air to the printhead. A QA chip is included in the cassette. The QA chip meets with acontact 99 located between theink valves 95 andair intake connector 96 in the printer as the cassette is inserted to provide communication to theQA chip connector 24 on the PCB.
Claims (3)
1. A printhead assembly that comprises:
a feed mechanism for feeding a print medium in a feed direction;
an elongate pagewidth ink distribution assembly that spans a pagewidth, the distribution assembly including at least one inlet port, wherein the, or each, inlet port has an opening that faces in a direction that is substantially parallel to said feed direction; and
a printhead that is mounted on the ink distribution assembly to receive ink from the ink distribution assembly.
2. The printhead assembly of claim 1 wherein the ink distribution assembly includes a plurality of inlet ports that is positioned substantially midway between respective opposed ends of the housing.
3. The printhead assembly of claim 1 wherein each inlet port is configured so that an ink hose is connectable to each respective inlet port to extend from the port in a direction that is substantially parallel to said feed direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/487,824 US20040239732A1 (en) | 2001-11-26 | 2002-08-06 | Ink supply arrangement for a printer |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/994,399 US20030099379A1 (en) | 2001-11-26 | 2001-11-26 | Validation and verification apparatus and method |
PCT/AU2002/001058 WO2003020523A1 (en) | 2001-09-04 | 2002-08-06 | Ink supply arrangement for a printer |
US10/487,824 US20040239732A1 (en) | 2001-11-26 | 2002-08-06 | Ink supply arrangement for a printer |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/994,399 Continuation US20030099379A1 (en) | 2001-11-26 | 2001-11-26 | Validation and verification apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040239732A1 true US20040239732A1 (en) | 2004-12-02 |
Family
ID=25540631
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/994,399 Abandoned US20030099379A1 (en) | 2001-11-26 | 2001-11-26 | Validation and verification apparatus and method |
US10/487,824 Abandoned US20040239732A1 (en) | 2001-11-26 | 2002-08-06 | Ink supply arrangement for a printer |
US11/156,885 Expired - Lifetime US7110573B2 (en) | 2001-11-26 | 2005-06-20 | Validation and verification apparatus and method |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/994,399 Abandoned US20030099379A1 (en) | 2001-11-26 | 2001-11-26 | Validation and verification apparatus and method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/156,885 Expired - Lifetime US7110573B2 (en) | 2001-11-26 | 2005-06-20 | Validation and verification apparatus and method |
Country Status (6)
Country | Link |
---|---|
US (3) | US20030099379A1 (en) |
EP (1) | EP1449155A4 (en) |
CN (1) | CN1295642C (en) |
AU (1) | AU2002365578A1 (en) |
CA (1) | CA2467861C (en) |
WO (1) | WO2003046815A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080030541A1 (en) * | 2004-12-06 | 2008-02-07 | Silverbrook Research Pty Ltd | Printer having capping mechanism for duplexed printheads |
US20080100661A1 (en) * | 2004-12-06 | 2008-05-01 | Silverbrook Research Pty Ltd | Duplex Printer Assembly With Capping Printheads For A Pagewidth Printer |
US20090195591A1 (en) * | 2004-12-06 | 2009-08-06 | Silverbrook Research Pty Ltd | Printer Having Pivotally Capped Duplexed Printheads |
US11619991B2 (en) | 2018-09-28 | 2023-04-04 | Apple Inc. | Device control using gaze information |
US11676373B2 (en) | 2008-01-03 | 2023-06-13 | Apple Inc. | Personal computing device control using face detection and recognition |
US11755712B2 (en) | 2011-09-29 | 2023-09-12 | Apple Inc. | Authentication with secondary approver |
US11765163B2 (en) | 2017-09-09 | 2023-09-19 | Apple Inc. | Implementation of biometric authentication |
US11768575B2 (en) | 2013-09-09 | 2023-09-26 | Apple Inc. | Device, method, and graphical user interface for manipulating user interfaces based on unlock inputs |
US11809784B2 (en) | 2018-09-28 | 2023-11-07 | Apple Inc. | Audio assisted enrollment |
US11836725B2 (en) | 2014-05-29 | 2023-12-05 | Apple Inc. | User interface for payments |
US11928200B2 (en) | 2018-06-03 | 2024-03-12 | Apple Inc. | Implementation of biometric authentication |
Families Citing this family (157)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6363164B1 (en) * | 1996-05-13 | 2002-03-26 | Cummins-Allison Corp. | Automated document processing system using full image scanning |
US20050276458A1 (en) | 2004-05-25 | 2005-12-15 | Cummins-Allison Corp. | Automated document processing system and method using image scanning |
US7187795B2 (en) | 2001-09-27 | 2007-03-06 | Cummins-Allison Corp. | Document processing system using full image scanning |
US7903863B2 (en) | 2001-09-27 | 2011-03-08 | Cummins-Allison Corp. | Currency bill tracking system |
US8162125B1 (en) | 1996-05-29 | 2012-04-24 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8478020B1 (en) | 1996-11-27 | 2013-07-02 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8701857B2 (en) | 2000-02-11 | 2014-04-22 | Cummins-Allison Corp. | System and method for processing currency bills and tickets |
US7565326B2 (en) * | 2000-05-25 | 2009-07-21 | Randle William M | Dialect independent multi-dimensional integrator using a normalized language platform and secure controlled access |
US7647275B2 (en) | 2001-07-05 | 2010-01-12 | Cummins-Allison Corp. | Automated payment system and method |
US8944234B1 (en) | 2001-09-27 | 2015-02-03 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8437530B1 (en) | 2001-09-27 | 2013-05-07 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8433123B1 (en) | 2001-09-27 | 2013-04-30 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8428332B1 (en) | 2001-09-27 | 2013-04-23 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US7873576B2 (en) * | 2002-09-25 | 2011-01-18 | Cummins-Allison Corp. | Financial document processing system |
US8437529B1 (en) | 2001-09-27 | 2013-05-07 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
ATE509326T1 (en) | 2001-12-18 | 2011-05-15 | L 1 Secure Credentialing Inc | MULTIPLE IMAGE SECURITY FEATURES FOR IDENTIFYING DOCUMENTS AND METHOD FOR PRODUCING THEM |
WO2003056500A1 (en) | 2001-12-24 | 2003-07-10 | Digimarc Id Systems, Llc | Covert variable information on id documents and methods of making same |
US7694887B2 (en) | 2001-12-24 | 2010-04-13 | L-1 Secure Credentialing, Inc. | Optically variable personalized indicia for identification documents |
WO2003055638A1 (en) | 2001-12-24 | 2003-07-10 | Digimarc Id Systems, Llc | Laser etched security features for identification documents and methods of making same |
US7815124B2 (en) | 2002-04-09 | 2010-10-19 | L-1 Secure Credentialing, Inc. | Image processing techniques for printing identification cards and documents |
US20030139994A1 (en) * | 2002-01-22 | 2003-07-24 | Jones John E. | Financial institution system |
US7152786B2 (en) | 2002-02-12 | 2006-12-26 | Digimarc Corporation | Identification document including embedded data |
US20030161509A1 (en) * | 2002-02-22 | 2003-08-28 | Kendall Wesley Eugene | Card one |
US7824029B2 (en) | 2002-05-10 | 2010-11-02 | L-1 Secure Credentialing, Inc. | Identification card printer-assembler for over the counter card issuing |
US7708189B1 (en) | 2002-05-17 | 2010-05-04 | Cipriano Joseph J | Identification verification system and method |
AU2003238323A1 (en) * | 2002-06-20 | 2004-01-06 | Wayfare Identifiers Inc. | Biometric document authentication system |
US8171567B1 (en) | 2002-09-04 | 2012-05-01 | Tracer Detection Technology Corp. | Authentication method and system |
US8627939B1 (en) | 2002-09-25 | 2014-01-14 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
AU2003282943A1 (en) * | 2002-10-11 | 2004-05-04 | Digimarc Corporation | Systems and methods for recognition of individuals using multiple biometric searches |
US7804982B2 (en) * | 2002-11-26 | 2010-09-28 | L-1 Secure Credentialing, Inc. | Systems and methods for managing and detecting fraud in image databases used with identification documents |
WO2004095348A2 (en) | 2003-04-16 | 2004-11-04 | Digimarc Corporation | Three dimensional data storage |
JP4334911B2 (en) * | 2003-05-28 | 2009-09-30 | ローレル精機株式会社 | Banknote image detection device |
JP4334910B2 (en) * | 2003-05-28 | 2009-09-30 | ローレル精機株式会社 | Banknote image detection device |
US8090157B2 (en) | 2005-01-26 | 2012-01-03 | Honeywell International Inc. | Approaches and apparatus for eye detection in a digital image |
US8705808B2 (en) | 2003-09-05 | 2014-04-22 | Honeywell International Inc. | Combined face and iris recognition system |
US8049812B2 (en) | 2006-03-03 | 2011-11-01 | Honeywell International Inc. | Camera with auto focus capability |
US8085993B2 (en) | 2006-03-03 | 2011-12-27 | Honeywell International Inc. | Modular biometrics collection system architecture |
US8098901B2 (en) | 2005-01-26 | 2012-01-17 | Honeywell International Inc. | Standoff iris recognition system |
US8064647B2 (en) | 2006-03-03 | 2011-11-22 | Honeywell International Inc. | System for iris detection tracking and recognition at a distance |
US8442276B2 (en) | 2006-03-03 | 2013-05-14 | Honeywell International Inc. | Invariant radial iris segmentation |
US7593550B2 (en) | 2005-01-26 | 2009-09-22 | Honeywell International Inc. | Distance iris recognition |
US7503488B2 (en) * | 2003-10-17 | 2009-03-17 | Davis Bruce L | Fraud prevention in issuance of identification credentials |
US7225977B2 (en) * | 2003-10-17 | 2007-06-05 | Digimarc Corporation | Fraud deterrence in connection with identity documents |
US20050125295A1 (en) * | 2003-12-09 | 2005-06-09 | Tidwell Lisa C. | Systems and methods for obtaining payor information at a point of sale |
US7783563B2 (en) * | 2003-12-09 | 2010-08-24 | First Data Corporation | Systems and methods for identifying payor location based on transaction data |
US20050125360A1 (en) * | 2003-12-09 | 2005-06-09 | Tidwell Lisa C. | Systems and methods for obtaining authentication marks at a point of sale |
US20050125296A1 (en) * | 2003-12-09 | 2005-06-09 | Tidwell Lisa C. | Systems and methods for obtaining biometric information at a point of sale |
US7398925B2 (en) * | 2003-12-09 | 2008-07-15 | First Data Corporation | Systems and methods for assessing the risk of a financial transaction using biometric information |
US7287689B2 (en) * | 2003-12-09 | 2007-10-30 | First Data Corporation | Systems and methods for assessing the risk of a financial transaction using authenticating marks |
US20050125338A1 (en) * | 2003-12-09 | 2005-06-09 | Tidwell Lisa C. | Systems and methods for assessing the risk of a financial transaction using reconciliation information |
US20050169511A1 (en) * | 2004-01-30 | 2005-08-04 | Cummins-Allison Corp. | Document processing system using primary and secondary pictorial image comparison |
EP2128790A3 (en) | 2004-03-12 | 2011-01-26 | Ingenia Technology Limited | Authenticity verification with linearised data |
ATE433164T1 (en) | 2004-03-12 | 2009-06-15 | Ingenia Technology Ltd | METHOD AND DEVICES FOR GENERATING AUTHENTICABLE ITEMS AND THEIR SUBSEQUENT VERIFICATION |
EP1784134A2 (en) * | 2004-03-26 | 2007-05-16 | Assuretec Systems Inc. | Real time privilege management |
US20060016107A1 (en) * | 2004-05-18 | 2006-01-26 | Davis Bruce L | Photo ID cards and methods of production |
US20060005050A1 (en) * | 2004-06-10 | 2006-01-05 | Supercom Ltd. | Tamper-free and forgery-proof passport and methods for providing same |
WO2006014481A2 (en) * | 2004-07-06 | 2006-02-09 | Viisage Technology, Inc. | Document classification and authentication |
US20060157559A1 (en) * | 2004-07-07 | 2006-07-20 | Levy Kenneth L | Systems and methods for document verification |
US20060015450A1 (en) * | 2004-07-13 | 2006-01-19 | Wells Fargo Bank, N.A. | Financial services network and associated processes |
GB2444139B (en) * | 2004-08-13 | 2008-11-12 | Ingenia Technology Ltd | Authenticity verification methods products and apparatuses |
US7860318B2 (en) | 2004-11-09 | 2010-12-28 | Intelli-Check, Inc | System and method for comparing documents |
JP2006202212A (en) * | 2005-01-24 | 2006-08-03 | Konica Minolta Business Technologies Inc | Personal authentication device, information processing apparatus and personal authentication system |
JP4449762B2 (en) * | 2005-01-24 | 2010-04-14 | コニカミノルタビジネステクノロジーズ株式会社 | Person verification device, person verification system, and person verification method |
US20060228025A1 (en) * | 2005-04-06 | 2006-10-12 | Top Digital Co., Ltd. | Portable electronic device having a pattern identification system |
US20080298647A1 (en) * | 2005-04-08 | 2008-12-04 | Us Biometrics Corporation | System and Method for Identifying an Enrolled User Utilizing a Biometric Identifier |
JP4529828B2 (en) * | 2005-07-19 | 2010-08-25 | 富士ゼロックス株式会社 | Document falsification prevention device |
US20070024422A1 (en) * | 2005-07-27 | 2007-02-01 | Arinc Incorporated | Systems and methods for personnel security identification using adapted portable data storage and display devices |
FR2892552B1 (en) * | 2005-10-24 | 2008-02-15 | Itesoft Sa | DEVICE AND METHOD FOR INTERACTING WITH A USER |
ES2582195T3 (en) * | 2005-10-24 | 2016-09-09 | Itesoft S.A. | Device and method of interaction with a user |
US20070140551A1 (en) * | 2005-12-16 | 2007-06-21 | Chao He | Banknote validation |
EP1969525A1 (en) * | 2005-12-23 | 2008-09-17 | Ingenia Holdings (UK)Limited | Optical authentication |
US20070162761A1 (en) * | 2005-12-23 | 2007-07-12 | Davis Bruce L | Methods and Systems to Help Detect Identity Fraud |
CN100442788C (en) * | 2005-12-31 | 2008-12-10 | 华为技术有限公司 | Method and system for realizing information repeat |
AU2007220010B2 (en) | 2006-03-03 | 2011-02-17 | Gentex Corporation | Single lens splitter camera |
DE602007007062D1 (en) | 2006-03-03 | 2010-07-22 | Honeywell Int Inc | IRISER IDENTIFICATION SYSTEM WITH IMAGE QUALITY METERING |
EP1991947B1 (en) | 2006-03-03 | 2020-04-29 | Gentex Corporation | Indexing and database search system |
KR101299074B1 (en) | 2006-03-03 | 2013-08-30 | 허니웰 인터내셔널 인코포레이티드 | Iris encoding system |
US20080022414A1 (en) | 2006-03-31 | 2008-01-24 | Robert Cahn | System and method of providing unique personal identifiers for use in the anonymous and secure exchange of data |
US20070260886A1 (en) * | 2006-05-02 | 2007-11-08 | Labcal Technologies Inc. | Biometric authentication device having machine-readable-zone (MRZ) reading functionality and method for implementing same |
US8707459B2 (en) | 2007-01-19 | 2014-04-22 | Digimarc Corporation | Determination of originality of content |
JP2008102633A (en) * | 2006-10-17 | 2008-05-01 | Sharp Corp | Image forming apparatus, user authentication system, control program for operating image forming apparatus, and computer-readable recording medium |
US8503796B2 (en) | 2006-12-29 | 2013-08-06 | Ncr Corporation | Method of validating a media item |
US7826464B2 (en) * | 2007-01-10 | 2010-11-02 | Mikhail Fedorov | Communication system |
US8296662B2 (en) * | 2007-02-05 | 2012-10-23 | Brother Kogyo Kabushiki Kaisha | Image display device |
CA2677714C (en) | 2007-03-09 | 2014-12-23 | Cummins-Allison Corp. | Document imaging and processing system |
US8538123B1 (en) | 2007-03-09 | 2013-09-17 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8417017B1 (en) | 2007-03-09 | 2013-04-09 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8063889B2 (en) | 2007-04-25 | 2011-11-22 | Honeywell International Inc. | Biometric data collection system |
US9531544B2 (en) * | 2007-05-31 | 2016-12-27 | Red Hat, Inc. | Two-dimensional bar code for ID card |
US8893241B2 (en) | 2007-06-01 | 2014-11-18 | Albright Associates | Systems and methods for universal enhanced log-in, identity document verification and dedicated survey participation |
US8959584B2 (en) | 2007-06-01 | 2015-02-17 | Albright Associates | Systems and methods for universal enhanced log-in, identity document verification and dedicated survey participation |
US8056118B2 (en) | 2007-06-01 | 2011-11-08 | Piliouras Teresa C | Systems and methods for universal enhanced log-in, identity document verification, and dedicated survey participation |
US9398022B2 (en) | 2007-06-01 | 2016-07-19 | Teresa C. Piliouras | Systems and methods for universal enhanced log-in, identity document verification, and dedicated survey participation |
RU2476936C2 (en) * | 2007-06-01 | 2013-02-27 | КБА-НотаСис СА | Authentication of protected documents, particularly banknotes |
JP4379500B2 (en) * | 2007-07-30 | 2009-12-09 | ソニー株式会社 | Biological imaging device |
US20090150442A1 (en) * | 2007-08-22 | 2009-06-11 | Ryan Barnard | Aggregation of persons-of-interest information for use in an identification system |
US8322605B2 (en) * | 2007-08-22 | 2012-12-04 | Intellicheck Mobilisa, Inc. | Dynamic identity matching in response to threat levels |
EP2203865A2 (en) * | 2007-09-24 | 2010-07-07 | Apple Inc. | Embedded authentication systems in an electronic device |
WO2009061855A2 (en) * | 2007-11-05 | 2009-05-14 | Intelli-Check--Mobilisa, Inc. | Dynamic access control in response to flexible rules |
US9292737B2 (en) * | 2008-01-18 | 2016-03-22 | Mitek Systems, Inc. | Systems and methods for classifying payment documents during mobile image processing |
US8983170B2 (en) | 2008-01-18 | 2015-03-17 | Mitek Systems, Inc. | Systems and methods for developing and verifying image processing standards for mobile deposit |
US7884734B2 (en) * | 2008-01-31 | 2011-02-08 | Microsoft Corporation | Unique identification of devices using color detection |
US8436907B2 (en) | 2008-05-09 | 2013-05-07 | Honeywell International Inc. | Heterogeneous video capturing system |
GB2462059A (en) * | 2008-07-11 | 2010-01-27 | Ingenia Holdings | Authentication scanner |
KR20100009952A (en) * | 2008-07-21 | 2010-01-29 | 삼성에스디아이 주식회사 | Method for driving plasma display panel, and plasma display apparatus adopting the method |
US8213782B2 (en) | 2008-08-07 | 2012-07-03 | Honeywell International Inc. | Predictive autofocusing system |
US8090246B2 (en) | 2008-08-08 | 2012-01-03 | Honeywell International Inc. | Image acquisition system |
US8139208B2 (en) * | 2008-09-11 | 2012-03-20 | Toshiba International Corporation | Ultrasonic detection system and method for the detection of transparent window security features in bank notes |
US8280119B2 (en) | 2008-12-05 | 2012-10-02 | Honeywell International Inc. | Iris recognition system using quality metrics |
GB2466465B (en) | 2008-12-19 | 2011-02-16 | Ingenia Holdings | Authentication |
GB2466311B (en) | 2008-12-19 | 2010-11-03 | Ingenia Holdings | Self-calibration of a matching algorithm for determining authenticity |
DE102009007588A1 (en) | 2009-02-05 | 2010-08-19 | Bundesdruckerei Gmbh | Method and apparatus for verifying documents using a wavelet transform |
US20100253782A1 (en) * | 2009-04-07 | 2010-10-07 | Latent Image Technology Ltd. | Device and method for automated verification of polarization-variant images |
US8391583B1 (en) | 2009-04-15 | 2013-03-05 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8437528B1 (en) | 2009-04-15 | 2013-05-07 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8929640B1 (en) | 2009-04-15 | 2015-01-06 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8472681B2 (en) | 2009-06-15 | 2013-06-25 | Honeywell International Inc. | Iris and ocular recognition system using trace transforms |
US8630464B2 (en) | 2009-06-15 | 2014-01-14 | Honeywell International Inc. | Adaptive iris matching using database indexing |
GB2476226B (en) | 2009-11-10 | 2012-03-28 | Ingenia Holdings Ltd | Optimisation |
IL202028A (en) | 2009-11-10 | 2016-06-30 | Icts Holding Company Ltd | Product, apparatus and methods for computerized authentication of electronic documents |
WO2011058554A1 (en) * | 2009-11-10 | 2011-05-19 | Au10Tix Limited | Computerized integrated authentication/ document bearer verification system and methods useful in conjunction therewith |
US8742887B2 (en) * | 2010-09-03 | 2014-06-03 | Honeywell International Inc. | Biometric visitor check system |
US10387564B2 (en) * | 2010-11-12 | 2019-08-20 | International Business Machines Corporation | Automatically assessing document quality for domain-specific documentation |
US20120123821A1 (en) * | 2010-11-16 | 2012-05-17 | Raytheon Company | System and Method for Risk Assessment of an Asserted Identity |
US20120213404A1 (en) | 2011-02-18 | 2012-08-23 | Google Inc. | Automatic event recognition and cross-user photo clustering |
US20120235785A1 (en) * | 2011-03-17 | 2012-09-20 | Motorola Mobility, Inc. | Wireless communication device and method with intelligent authentication |
JP5360106B2 (en) | 2011-03-25 | 2013-12-04 | ブラザー工業株式会社 | Information processing program, information processing apparatus, and information processing method |
US8794515B2 (en) | 2011-11-07 | 2014-08-05 | Jeremy Krell | Alcohol delivery management system |
CN102789658B (en) * | 2012-03-02 | 2015-02-18 | 成都三泰电子实业股份有限公司 | Ultraviolet anti-counterfeiting check authenticity verification method |
US10115259B2 (en) * | 2012-06-15 | 2018-10-30 | Ncr Corporation | Item validation |
US9391792B2 (en) | 2012-06-27 | 2016-07-12 | Google Inc. | System and method for event content stream |
RU2510965C1 (en) * | 2012-10-08 | 2014-04-10 | Общество с ограниченной ответственностью "ВИЛДИС" | Forensic expert video system |
US9418370B2 (en) | 2012-10-23 | 2016-08-16 | Google Inc. | Obtaining event reviews |
US9141876B1 (en) | 2013-02-22 | 2015-09-22 | Cummins-Allison Corp. | Apparatus and system for processing currency bills and financial documents and method for using the same |
US20140279516A1 (en) * | 2013-03-14 | 2014-09-18 | Nicholas Rellas | Authenticating a physical device |
US9536139B2 (en) | 2013-03-15 | 2017-01-03 | Mitek Systems, Inc. | Systems and methods for assessing standards for mobile image quality |
US9307107B2 (en) * | 2013-06-03 | 2016-04-05 | Kodak Alaris Inc. | Classification of scanned hardcopy media |
JP6183025B2 (en) | 2013-07-23 | 2017-08-23 | ブラザー工業株式会社 | Information processing program, information processing apparatus, and information processing apparatus control method |
JP6244876B2 (en) | 2013-12-17 | 2017-12-13 | ブラザー工業株式会社 | Information processing program, information processing apparatus, and information processing apparatus control method |
GB201406594D0 (en) | 2014-04-11 | 2014-05-28 | Idscan Biometric Ltd | Method, system and computer program for validating a facial image-bearing identity document |
AR100871A1 (en) * | 2014-06-20 | 2016-11-09 | Nomacorc Llc | MULTICOMPONENT SYNTHETIC CLOSURE AND MANUFACTURING METHOD OF THIS |
GB2533908A (en) * | 2014-10-20 | 2016-07-13 | Idscan Biometrics Ltd | Method, system and computer program for enhanced identity document validation |
US10373409B2 (en) | 2014-10-31 | 2019-08-06 | Intellicheck, Inc. | Identification scan in compliance with jurisdictional or other rules |
RU2584441C1 (en) * | 2015-03-30 | 2016-05-20 | Борис Вадимович Ситников | Method of determining signs of installation on copies of documents made with electrophotographic method |
EP3465637B1 (en) * | 2016-06-03 | 2023-08-16 | Veridas Digital Authentication Solutions, S.L. | A method for authenticating a document |
CA2975030A1 (en) * | 2016-07-29 | 2018-01-29 | Confirm, Inc. | System and apparatus for detecting forgery features on identification documents |
US10452908B1 (en) | 2016-12-23 | 2019-10-22 | Wells Fargo Bank, N.A. | Document fraud detection |
US10460035B1 (en) * | 2016-12-26 | 2019-10-29 | Cerner Innovation, Inc. | Determining adequacy of documentation using perplexity and probabilistic coherence |
NL2019698B1 (en) | 2017-10-10 | 2019-04-19 | Morpho Bv | Authentication of a person using a virtual identity card |
JP6590417B2 (en) * | 2017-11-21 | 2019-10-16 | 株式会社バイオーム | Discriminating device, discriminating method, discriminating program, discriminating system |
US10586280B2 (en) | 2018-01-30 | 2020-03-10 | PointPredictive Inc. | Risk-based machine learning classsifier |
EP3572972A1 (en) | 2018-05-23 | 2019-11-27 | IDEMIA Identity & Security Germany AG | Extendend convolutional neural network for document analysis |
US10769263B1 (en) * | 2019-05-07 | 2020-09-08 | Alibaba Group Holding Limited | Certificate verification |
EP3772014A1 (en) | 2019-07-29 | 2021-02-03 | TripEye Limited | Identity document validation method, system and computer program |
EP3772013A1 (en) * | 2019-07-29 | 2021-02-03 | TripEye Limited | Identity document validation method, system and computer program |
CN214623663U (en) * | 2019-12-27 | 2021-11-05 | Regula有限公司 | Portable software and hardware system |
JP2022169874A (en) * | 2021-04-28 | 2022-11-10 | 株式会社Pfu | Image processing apparatus, image processing method, and program |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4883219A (en) * | 1988-09-01 | 1989-11-28 | Anderson Jeffrey J | Manufacture of ink jet print heads by diffusion bonding and brazing |
US5381162A (en) * | 1990-07-16 | 1995-01-10 | Tektronix, Inc. | Method of operating an ink jet to reduce print quality degradation resulting from rectified diffusion |
US5502471A (en) * | 1992-04-28 | 1996-03-26 | Eastman Kodak Company | System for an electrothermal ink jet print head |
US5870124A (en) * | 1995-04-12 | 1999-02-09 | Eastman Kodak Company | Pressurizable liquid ink cartridge for coincident forces printers |
US5876582A (en) * | 1997-01-27 | 1999-03-02 | The University Of Utah Research Foundation | Methods for preparing devices having metallic hollow microchannels on planar substrate surfaces |
US5963234A (en) * | 1995-08-23 | 1999-10-05 | Seiko Epson Corporation | Laminated ink jet recording head having flow path unit with recess that confronts but does not communicate with common ink chamber |
US6069640A (en) * | 1996-12-09 | 2000-05-30 | Francotyp Postalia Ag & Co | Configuration for supplying ink to an ink jet print head |
US6234608B1 (en) * | 1997-06-05 | 2001-05-22 | Xerox Corporation | Magnetically actuated ink jet printing device |
US6250738B1 (en) * | 1997-10-28 | 2001-06-26 | Hewlett-Packard Company | Inkjet printing apparatus with ink manifold |
US6281912B1 (en) * | 2000-05-23 | 2001-08-28 | Silverbrook Research Pty Ltd | Air supply arrangement for a printer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4519041A (en) * | 1982-05-03 | 1985-05-21 | Honeywell Inc. | Real time automated inspection |
US6002799A (en) * | 1986-07-25 | 1999-12-14 | Ast Research, Inc. | Handwritten keyboardless entry computer system |
US5992601A (en) * | 1996-02-15 | 1999-11-30 | Cummins-Allison Corp. | Method and apparatus for document identification and authentication |
US5618183A (en) * | 1994-10-24 | 1997-04-08 | Honeywell Inc. | Dither motor connector for a self contained laser gyro |
FR2761476B1 (en) * | 1997-03-28 | 1999-06-11 | Lorraine Laminage | METHOD FOR INSPECTING THE SURFACE OF A TRAVELING STRIP BY PRIOR CLASSIFICATION OF DETECTED SURFACE IRREGULARITY |
AU7159098A (en) * | 1997-05-07 | 1998-11-27 | Cummins-Allison Corp. | Intelligent currency handling system |
US6181813B1 (en) * | 1997-09-29 | 2001-01-30 | Xerox Corporation | Method for counterfeit currency detection using orthogonal line comparison |
US6269169B1 (en) * | 1998-07-17 | 2001-07-31 | Imaging Automation, Inc. | Secure document reader and method therefor |
-
2001
- 2001-11-26 US US09/994,399 patent/US20030099379A1/en not_active Abandoned
-
2002
- 2002-08-06 US US10/487,824 patent/US20040239732A1/en not_active Abandoned
- 2002-11-25 CN CNB028234375A patent/CN1295642C/en not_active Expired - Fee Related
- 2002-11-25 AU AU2002365578A patent/AU2002365578A1/en not_active Abandoned
- 2002-11-25 WO PCT/US2002/037740 patent/WO2003046815A1/en not_active Application Discontinuation
- 2002-11-25 CA CA2467861A patent/CA2467861C/en not_active Expired - Lifetime
- 2002-11-25 EP EP02804055A patent/EP1449155A4/en not_active Withdrawn
-
2005
- 2005-06-20 US US11/156,885 patent/US7110573B2/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4883219A (en) * | 1988-09-01 | 1989-11-28 | Anderson Jeffrey J | Manufacture of ink jet print heads by diffusion bonding and brazing |
US5381162A (en) * | 1990-07-16 | 1995-01-10 | Tektronix, Inc. | Method of operating an ink jet to reduce print quality degradation resulting from rectified diffusion |
US5502471A (en) * | 1992-04-28 | 1996-03-26 | Eastman Kodak Company | System for an electrothermal ink jet print head |
US5870124A (en) * | 1995-04-12 | 1999-02-09 | Eastman Kodak Company | Pressurizable liquid ink cartridge for coincident forces printers |
US5963234A (en) * | 1995-08-23 | 1999-10-05 | Seiko Epson Corporation | Laminated ink jet recording head having flow path unit with recess that confronts but does not communicate with common ink chamber |
US6069640A (en) * | 1996-12-09 | 2000-05-30 | Francotyp Postalia Ag & Co | Configuration for supplying ink to an ink jet print head |
US5876582A (en) * | 1997-01-27 | 1999-03-02 | The University Of Utah Research Foundation | Methods for preparing devices having metallic hollow microchannels on planar substrate surfaces |
US6234608B1 (en) * | 1997-06-05 | 2001-05-22 | Xerox Corporation | Magnetically actuated ink jet printing device |
US6250738B1 (en) * | 1997-10-28 | 2001-06-26 | Hewlett-Packard Company | Inkjet printing apparatus with ink manifold |
US6281912B1 (en) * | 2000-05-23 | 2001-08-28 | Silverbrook Research Pty Ltd | Air supply arrangement for a printer |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100271422A1 (en) * | 2004-12-06 | 2010-10-28 | Silverbrook Research Pty Ltd | Printer having mechanism for arcuate capper movement |
US20080030541A1 (en) * | 2004-12-06 | 2008-02-07 | Silverbrook Research Pty Ltd | Printer having capping mechanism for duplexed printheads |
US20090195591A1 (en) * | 2004-12-06 | 2009-08-06 | Silverbrook Research Pty Ltd | Printer Having Pivotally Capped Duplexed Printheads |
US7744190B2 (en) * | 2004-12-06 | 2010-06-29 | Silverbrook Research Pty Ltd | Duplex printer assembly with capping printheads for a pagewidth printer |
US7753475B2 (en) * | 2004-12-06 | 2010-07-13 | Silverbrook Research Pty Ltd | Printer having pivotally capped duplexed printheads |
US20100253739A1 (en) * | 2004-12-06 | 2010-10-07 | Silverbrook Research Pty Ltd | Duplex printer assembly having capping printheads |
US20080100661A1 (en) * | 2004-12-06 | 2008-05-01 | Silverbrook Research Pty Ltd | Duplex Printer Assembly With Capping Printheads For A Pagewidth Printer |
US11676373B2 (en) | 2008-01-03 | 2023-06-13 | Apple Inc. | Personal computing device control using face detection and recognition |
US11755712B2 (en) | 2011-09-29 | 2023-09-12 | Apple Inc. | Authentication with secondary approver |
US11768575B2 (en) | 2013-09-09 | 2023-09-26 | Apple Inc. | Device, method, and graphical user interface for manipulating user interfaces based on unlock inputs |
US11836725B2 (en) | 2014-05-29 | 2023-12-05 | Apple Inc. | User interface for payments |
US11765163B2 (en) | 2017-09-09 | 2023-09-19 | Apple Inc. | Implementation of biometric authentication |
US11928200B2 (en) | 2018-06-03 | 2024-03-12 | Apple Inc. | Implementation of biometric authentication |
US11619991B2 (en) | 2018-09-28 | 2023-04-04 | Apple Inc. | Device control using gaze information |
US11809784B2 (en) | 2018-09-28 | 2023-11-07 | Apple Inc. | Audio assisted enrollment |
Also Published As
Publication number | Publication date |
---|---|
AU2002365578A1 (en) | 2003-06-10 |
US20050229010A1 (en) | 2005-10-13 |
EP1449155A1 (en) | 2004-08-25 |
US7110573B2 (en) | 2006-09-19 |
CA2467861C (en) | 2013-02-12 |
CN1592914A (en) | 2005-03-09 |
CA2467861A1 (en) | 2003-06-05 |
WO2003046815A1 (en) | 2003-06-05 |
CN1295642C (en) | 2007-01-17 |
EP1449155A4 (en) | 2007-03-14 |
US20030099379A1 (en) | 2003-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7192125B2 (en) | Ink jet printer that incorporates an ink distribution assembly | |
US8678550B2 (en) | Printhead assembly with laminated ink distribution stack | |
US6281912B1 (en) | Air supply arrangement for a printer | |
US7077496B2 (en) | Mountable print engine assembly having capping mechanism | |
US20040239732A1 (en) | Ink supply arrangement for a printer | |
US7357475B2 (en) | Filtered air supply for nozzle guard | |
US20140063143A1 (en) | Laminated ink supply structure mounted in ink distribution arrangement of an inkjet printer | |
US7300141B2 (en) | Printhead assembly with ink distribution assembly and printhead integrated circuits | |
AU2002361690B2 (en) | Ink supply arrangement for a printer | |
AU2005202041B2 (en) | Sealing means for an inkjet printhead | |
AU2002361690A1 (en) | Ink supply arrangement for a printer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |