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公开(公告)号：US11345162B2
公开(公告)日：2022-05-31
申请号：US15570634
申请日：2015-07-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Ron Burns , Erik D. Torniainen , Galen P. Cook , David P. Markel , Garrard Hume , Chris Bakker
Abstract: A fluid recirculation channel for dispensing a plurality of fluid drop weights includes a number of sub-channels. The sub-channels include at least one pump channel, and a plurality of drop generator channels fluidically coupled to the at least one pump channel. The fluid recirculation channel further includes a number of pump generators incorporated into the at least one pump channel, a number of drop generators incorporated into drop generator channels, and a plurality of nozzles defined within the drop generator channels, the nozzles being at least as numerous as the number of drop generators.
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公开(公告)号：US20210252853A1
公开(公告)日：2021-08-19
申请号：US17051106
申请日：2018-08-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： James Kearns , Ron Burns , Craig LeVier , Leslie Caroline Drogo
Abstract: A deposition module within a web press for inhibiting media deformation may include a fluid deposition device located on a side of a media, and a processing device to control the fluid deposition device to selectively apply a wetting agent to the media. The deposition of the wetting agent may be based on the location of content printed on the media as defined by print data.
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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：US10124598B2
公开(公告)日：2018-11-13
申请号：US15569307
申请日：2015-06-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Joe W. Stellbrink , Ron Burns , Whitney E. Smith , April E. Sullivan
Abstract: Examples include computing devices, processes, and/or machine-readable storage mediums comprising instructions to analyze at least one digital image corresponding to calibration output of a printing device to determine location saturation values for nozzle locations of the printing device. At least one printhead is segmented into segments corresponding to one or more nozzle locations. A reference segment is determined from among the segments of the printhead, and a uniformity correction value is determined for at least one segment based at least in part on the reference segment.
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公开(公告)号：US11331918B2
公开(公告)日：2022-05-17
申请号：US16861119
申请日：2020-04-28
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 plurality of nozzles configured to eject ink drops of different sizes wherein a low drop weight (LDW) drop is ejected through a nozzle with a circular bore (CB), and a high drop weight (HDW) drop is ejected through a nozzle with a non-circular bore (NCB).
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Patent Agency Ranking
公开(公告)号：US10780695B2
公开(公告)日：2020-09-22
申请号：US16280499
申请日：2019-02-20
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：US10160227B2
公开(公告)日：2018-12-25
申请号：US15543546
申请日：2015-04-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： George C. Ross , Ron Burns
Abstract: In an example implementation, a method of dual and single drop weight printing includes operating a printing system in a hybrid drop weight print mode to enable ejecting black ink from high drop weight nozzles and low drop weight nozzles, and ejecting color ink from high drop weight nozzles but not from low drop weight nozzles.
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公开(公告)号：US20180290458A1
公开(公告)日：2018-10-11
申请号：US15570634
申请日：2015-07-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Ron Burns , Erik D. Torniainen , Galen P. Cook , David P. Markel , Garrard Hume , Chris Bakker
Abstract: A fluid recirculation channel for dispensing a plurality of fluid drop weights includes a number of sub-channels. The sub-channels include at least one pump channel, and a plurality of drop generator channels fluidically coupled to the at least one pump channel. The fluid recirculation channel further includes a number of pump generators incorporated into the at least one pump channel, a number of drop generators incorporated into drop generator channels, and a plurality of nozzles defined within the drop generator channels, the nozzles being at least as numerous as the number of drop generators.
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公开(公告)号：US20170313066A1
公开(公告)日：2017-11-02
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
IPC: B41J2/14
CPC classification number: B41J2/1433 , B41J2/1404 , B41J2/1412 , B41J2/155 , B41J2/175 , B41J2/2125 , B41J2/2146 , B41J3/543 , B41J2002/14475 , B41J2202/20
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：US20170305152A1
公开(公告)日：2017-10-26
申请号：US15521568
申请日：2014-10-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lawrence H White , Arun K Agarwal , Ron Burns
IPC: B41J2/14
Abstract: Printheads and printers are described herein. In one example, a printhead includes a plurality of nozzles configured to eject ink drops of different sizes wherein a low drop weight (LDW) drop is ejected through a nozzle with a circular bore (CB), and a high drop weight (HDW) drop is ejected through a nozzle with a non-circular bore (NCB).
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