Source: http://www.google.com/patents/US7210762?dq=5,664,133
Timestamp: 2017-06-26 02:40:06
Document Index: 637705967

Matched Legal Cases: ['art 104', 'art 102', 'art 102', 'art 104', 'art 101', 'arts 106', 'art 101', 'art 102', 'arts 103', 'art 101', 'arts 103', 'arts 106', 'art 104', 'art 102']

Patent US7210762 - Printhead assembly incorporating an ink supply arrangement and printed ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA printhead assembly includes an elongate support structure that has a base portion and at least a pair of longitudinally extending side wall portions. One side wall portion extends from each edge of one side of the base portion a plurality of carriers is mountable, end-to-end, on the support structure...http://www.google.com/patents/US7210762?utm_source=gb-gplus-sharePatent US7210762 - Printhead assembly incorporating an ink supply arrangement and printed circuit boardAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7210762 B2Publication typeGrantApplication numberUS 10/990,527Publication dateMay 1, 2007Filing dateNov 18, 2004Priority dateJun 30, 1999Fee statusPaidAlso published asCA2414702A1, CA2414702C, CN1165425C, CN1371321A, CN1565845A, DE60019300D1, EP1204533A1, EP1204533A4, EP1204533B1, US6641253, US6755513, US6830315, US6846059, US6871938, US6905194, US7125106, US7175256, US7207646, US7284831, US7357484, US7384127, US7537317, US7604314, US7690761, US7703884, US7771014, US7891768, US7901042, US7922290, US7984970, US8215747, US8485643, US8556386, US8662636, US8905519, US9085148, US9168755, US9539819, US20030090538, US20030090541, US20040179063, US20040250421, US20040263555, US20040263566, US20050068363, US20050073551, US20050146568, US20050151794, US20050162467, US20070024671, US20070097179, US20070285464, US20080012899, US20080151003, US20080273054, US20080297562, US20090058929, US20090213193, US20100007694, US20100177144, US20100201745, US20100295906, US20110242221, US20130120497, US20140111578, US20140253636, US20150062261, US20150336384, US20170136768, WO2001002172A1Publication number10990527, 990527, US 7210762 B2, US 7210762B2, US-B2-7210762, US7210762 B2, US7210762B2InventorsKia Silverbrook, Tobin Allen KingOriginal AssigneeSilverbrook Research Pty LtdExport CitationBiBTeX, EndNote, RefManPatent Citations (13), Classifications (20), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetPrinthead assembly incorporating an ink supply arrangement and printed circuit board
US 7210762 B2Abstract
The present application is a continuation of U.S. application Ser. No. 10/803,922 filed on Mar. 19, 2004, now issued as U.S. Pat. No. 6,830,315, which is a continuation of U.S. application Ser. No. 09/609,140 filed on Jun. 30, 2000, now issued as U.S. Pat. No. 6,755,513.
Different problems have been found to attend the manufacture of long PIJ printheads for large—or full-page—width printing. These include acoustic crosstalk between nozzles due to similar time scales of drop ejection and reflection of acoustic pulses within the printhead. Further, silicon is not a piezoelectric material, and is very difficult to integrate with CMOS chips, so that separate external connections are required for every nozzle.
Turning next to FIGS. 6–12, these illustrate in different views and sections a typical printhead segment carrier 8. Carrier 8 is preferably a single micro-injection molded part made of a suitable temperature and abrasion resistant and form-holding plastics material. (A further manufacturing operation is carried out subsequent to molding, as described below.) As best seen in FIGS. 6 and 7, the overall external shape of carrier 8 can be described illustratively as a diametrically slit half cylinder, with a half-circular back face 91, a partly planar front face 82 and stepped end faces 83. FIG. 8 shows a plan view of back face 91 and FIG. 9 shows a plan view of front face 82.
FIGS. 13 and 14 show a first end cap 50 which is sealingly secured to an open terminal longitudinal end of profile member 10, as may be seen in FIGS. 1 and 2. Cap 50 is molded from a plastics material and it incorporates a generally planar wall portion 51 that extends perpendicularly to a lengthwise axis of profile member 10. Four tubular stubs 55 a–55 d are integrally moulded with planar wall portion 51 on side 52 of wall portion 51 which will face away from support profile 10 when end cap 50 is secured thereto. On the planar wall side 53 which will face the longitudinal terminal end of support profile 10 (see FIG. 14), four hollow-shaped stubs 57 a–57 d are integrally moulded with planar wall portion 51. As best seen in FIG. 14, ink supply conduits 56 a to 56 d are defined within tubular stubs 55 a to 55 d respectively, extend through planar wall portion 51, and open within shaped stubs 57 a to 57 d, respectively, located on the other sides of cap 50.
Whereas end cap 50 enables connection of ink supply hoses to the printhead assembly 1, end cap 60 has no tubular stubs on exterior face 62 of planar wall portion 61. Instead, four tortuous grooves 65 a to 65 d are formed on exterior face 62, and terminate at holes 66 a to 66 d, respectively, extending through wall portion 61. Each one of holes 66 a to 66 d opens into a respective one of the channels 20 a to 20 d so that when the cap 60 is in place on the profile 10, each one of the grooves 65 a to 65 d is in fluid communication with a respective one of the channels 20 a to 20 d. The grooves 65 a–65 d permit bleeding-off of air during priming of the printhead assembly 1 with ink, as holes 66 a–66 d permit air expulsion from the ink supply channels 20 a–20 d of support profile 10 via grooves 65 a–65 d. Grooves 65 a–65 d are capped under a translucent plastic film 69 bonded to outer face 62. Translucent plastic film 69 thus also serves the purpose of allowing visual confirmation that the ink supply channels 20 a–20 d of profile 10 are properly primed. For charging the ink supply channels 20 a 20 d with ink, film 69 is folded back (as shown in FIG. 15) to partially uncover grooves 65 a–65 d, so that displaced air may bleed out as ink enters the grooves 65 a–65 d through holes 66 a–66 d. When ink is visible behind film 69 in each groove 65 a–65 d, film 69 is folded towards face 62 and bonded against face 62 to sealingly cover face 62 and so cap-off grooves 65 a–65 d and isolate them from one another.
FIGS. 19, 20 and 21 are schematic representations only, intended to provide an understanding of the construction of an injection molding die used in the manufacture of a printhead segment carrier 8. A multi-part die 100 is used, having a fixed base die part 104, which in use defines the face 82, recess 90 and slots 96 a to 96 d of the carrier 8, and a multi-part upper die part 102. The upper die part 102 is closed against the base part 104 for molding, and includes a part 101 with multiple fingers 101 a which in use form the galleries 92 b (including galleries 92 b′) and parts 106 which are fixed relative to part 101. Also included in the upper part 102 are die parts 103 which are movable relative to the part 101 and which have fingers 103 a to form the remaining galleries 92 a, 92 c and 92 d. Parts 103 seat against parts 106 when molding is underway. Spaces between the fingers 101 a and 103 a correspond to the walls 97. In use of the die 100, terminal tips of the fingers 101 a and 103 a close against blades 105 which in use form the ink supply slots 96 a–96 d of carrier 8 and which are mounted to male base 104 to be detachable and replaceable when necessary. Base die part 104 also has inserts 104 a which in use form the pickup slots 87. Because zero draft is preferred on the stepped end faces 83 in this application, the die 100 also has two movable end pieces (not shown, for clarity) which in use of the die 100 are movable generally axially to close against the upper die part 102 and which are shaped to define the end faces 84′, 85′ and 86′ of carrier 8. FIG. 21 shows a schematic transverse cross-section of the mold 100 when closed, with areas in black corresponding to the carrier 8 being molded.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5016023 *Oct 6, 1989May 14, 1991Hewlett-Packard CompanyLarge expandable array thermal ink jet pen and method of manufacturing sameUS5565900Feb 4, 1994Oct 15, 1996Hewlett-Packard CompanyUnit print head assembly for ink-jet printingUS5668583Jun 23, 1995Sep 16, 1997Francotyp-Postalia Ag & Co.Ink printer head composed of individual ink printer modulesUS5696544Apr 13, 1995Dec 9, 1997Canon Kabushiki KaishaInk jet head substrate and ink jet head using same arranged staggeredlyUS6244696Apr 30, 1999Jun 12, 2001Hewlett-Packard CompanyInkjet print cartridge design for decreasing ink shorts by using an elevated substrate support surface to increase adhesive sealing of the printhead from ink penetrationUS6318849Jul 10, 1998Nov 20, 2001Silverbrook Research Pty LtdFluid supply mechanism for multiple fluids to multiple spaced orificesUS6641253Nov 12, 2002Nov 4, 2003Silverbrook Research Pty LtdPrinthead support assemblyUS6830315 *Mar 19, 2004Dec 14, 2004Silverbrook Research Pty LtdPrinthead assembly incorporating an ink supply arrangementUS20030090541Nov 12, 2002May 15, 2003Kia SilverbrookMethod of assembling a printhead support assemblyEP0666174A2Jan 11, 1995Aug 9, 1995Hewlett-Packard CompanyUnit print head for ink jet printingEP0811497A2Jun 3, 1997Dec 10, 1997Lexmark International, Inc.Ink jet printhead assemblyEP0822078A2Jul 30, 1997Feb 4, 1998Canon Kabushiki KaishaInk jet recording headEP0838339A2Oct 24, 1997Apr 29, 1998Hewlett-Packard CompanyPrinting device and method* Cited by examinerClassifications U.S. Classification347/42, 347/49, 347/58International ClassificationB41J2/14, B41J2/155Cooperative ClassificationB41J2/175, B41J2/145, Y10T29/49401, B41J2/155, B41J2202/20, B41J2/14, B41J2002/14419, B41J2202/21, B41J2002/14491, B41J2002/14459, B41J2002/14362, B41J2202/19, B41J2/21European ClassificationB41J2/155, B41J2/14Legal EventsDateCodeEventDescriptionNov 18, 2004ASAssignmentOwner name: SILVERBROOK RESEARCH PTY. LTD., AUSTRALIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SILVERBROOK, KIA;KING, TOBIN ALLEN;REEL/FRAME:016007/0530Effective date: 20041115Oct 24, 2010FPAYFee paymentYear of fee payment: 4Jul 14, 2012ASAssignmentOwner name: ZAMTEC LIMITED, IRELANDFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SILVERBROOK RESEARCH PTY. LIMITED AND CLAMATE PTY LIMITED;REEL/FRAME:028551/0297Effective date: 20120503Jun 25, 2014ASAssignmentOwner name: MEMJET TECHNOLOGY LIMITED, IRELANDFree format text: CHANGE OF NAME;ASSIGNOR:ZAMTEC LIMITED;REEL/FRAME:033244/0276Effective date: 20140609Nov 3, 2014FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services