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公开(公告)号：US10457048B2
公开(公告)日：2019-10-29
申请号：US15521285
申请日：2014-10-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lawrence H White , Thomas J Cardinali , Michael Hager
Abstract: Printheads and methods for forming printheads are described herein. In one example, a printhead includes a single resistor window in a conducting layer within the printhead. The printhead also includes a number of resistors formed in a resistor film deposited over the single resistor window. The resistors have two different widths, and each of the two different widths ejects a different droplet size when energized.
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公开(公告)号：US10245832B2
公开(公告)日：2019-04-02
申请号：US15521481
申请日：2014-10-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lawrence H White , Arun K Agarwal , Ron Burns
Abstract: Printheads and printers are described herein. In one example, a printhead includes a number of drop generators disposed in a first array and a second array. The drop generators in both the first array and the second array are spaced one dot pitch apart perpendicular to the motion of a print medium, and alternate between a high drop weight (HDW) drop generator and a low drop weight (LDW) drop generator. Each drop generator in the first array is in a line of the motion of the print medium with a corresponding drop generator in the second array, wherein each HDW drop generator in the first array is in line with an LDW drop generator in the second array, and each LDW drop generator in the first array is in line with an HDW drop generator in the second array.
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公开(公告)号：US09931847B2
公开(公告)日：2018-04-03
申请号：US15500638
申请日：2014-07-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey Allen Wagner , Thomas M Sabo , Ronald A Askeland , Gonzalo Gaston Llado , Alyssa Michelle Siegman , Lawrence H White , Alex Andrea Tallada , Brian J Keefe , Maria Magdalena Martinez Ferrandiz , Daniel Vincent Keane , Yi Hong Tor , Marian Dinares Argemi , Francisco Lopez Moral , Xavier Bruch , Chandrasekhar Nadimpalli
CPC classification number: B41J2/16508 , B41J2/04508 , B41J2/165 , B41J2/16505 , B41J2/16517 , B41J2/16526 , B41J2/1707 , B41J2/1714 , B41J2/175 , B41J2/17596 , B41J29/377 , B41J29/38 , B41J29/393 , B41J2002/16555
Abstract: A printer is disclosed herein. The printer has a printhead having a plurality of ink nozzles for ejecting ink, a servicing mechanism for capturing the ejected ink from the ink nozzles, to service the printhead, and a control device coupled to the printhead and the servicing mechanism for regulating the servicing. As part of the regulation, the control device continues feeding a substrate towards the printhead during an idle period. The idle period of the printhead can be a duration when printing on the substrate is suspended. Further, the control device regulates ejection of ink from the ink nozzles towards the substrate during the idle period and operates the servicing mechanism during the idle period. In an example, the servicing mechanism captures the ink before the ink reaches the substrate.
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公开(公告)号：US20170217189A1
公开(公告)日：2017-08-03
申请号：US15500638
申请日：2014-07-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey Allen Wagner , Thomas M Sabo , Ronald A Askeland , Gonzalo Gaston Llado , Alyssa Michelle Siegman , Lawrence H White , Alex Andrea Tallada , Brian J Keefe , Maria Magdalena Martinez Ferrandiz , Daniel Vincent Keane , Yi Hong Tor , Marian Dinares Argemi , Francisco Lopez Moral , Xavier Bruch , Chandrasekhar Nadimpalli
CPC classification number: B41J2/16508 , B41J2/04508 , B41J2/165 , B41J2/16505 , B41J2/16517 , B41J2/16526 , B41J2/1707 , B41J2/1714 , B41J2/175 , B41J2/17596 , B41J29/377 , B41J29/38 , B41J29/393 , B41J2002/16555
Abstract: A printer is disclosed herein. The printer has a printhead having a plurality of ink nozzles for ejecting ink, a servicing mechanism for capturing the ejected ink from the ink nozzles, to service the printhead, and a control device coupled to the printhead and the servicing mechanism for regulating the servicing. As part of the regulation, the control device continues feeding a substrate towards the printhead during an idle period. The idle period of the printhead can be a duration when printing on the substrate is suspended. Further, the control device regulates ejection of ink from the ink nozzles towards the substrate during the idle period and operates the servicing mechanism during the idle period. In an example, the servicing mechanism captures the ink before the ink reaches the substrate.
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