-
公开(公告)号：US20220274397A1
公开(公告)日：2022-09-01
申请号：US17188014
申请日：2021-03-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In one example in accordance with the present disclosure, a printing device is described. The printing device includes a print controller with a processor and memory. The print controller generates print instructions. Specifically, the print controller receives print image data representing an image to be printed and identifies enclosed regions in a background print agent plane. The print controller also determines a size of the enclosed regions of background print agent plane and responsive to the size of an enclosed region being smaller than a threshold size, removes the enclosed region from the background print agent plane. The printing device also includes a print agent distribution system to apply the background print agent and the image print agent to a substrate according to the print instructions.
-
公开(公告)号：US12233644B2
公开(公告)日：2025-02-25
申请号：US18246158
申请日：2020-09-22
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B41J2/045 , B41J25/308
Abstract: A method is described in which a difference in height is determined between a current position and a calibration position of a printhead of a printer. An alignment value for the printhead is then determined based on the difference.
-
Patent Agency Ranking
公开(公告)号：US11865834B2
公开(公告)日：2024-01-09
申请号：US17411408
申请日：2021-08-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
CPC classification number: B41J2/04505 , B41J2/04536 , B41J2/04586 , G06F3/1211 , G06F3/1229 , G06F3/1256
Abstract: Examples relate to computer-implemented methods for a printing system comprising a printhead, and to printing systems. A method for a printing system comprises retrieving a stored first offset applied to the printhead to align the printhead, the first offset determined based on a first user input signal; and further aligning the printhead according to a further offset determined based on a further user input signal, the further offset indicating a difference from the first offset.
-
公开(公告)号：US11568622B2
公开(公告)日：2023-01-31
申请号：US17305120
申请日：2021-06-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In some examples, a system detects a highlighted area in an image content, the highlighted area including a portion of the image content, and a highlighting mark that highlights the portion of the image content. The system applies a color adjustment process in the highlighted area, wherein the color adjustment process comprises adjusting a color of the highlighted area comprising the portion of the image content highlighted by the highlighting mark, and wherein the adjusting of the color of the highlighted area comprises adjusting color values of plural color components in a first color space.
-
公开(公告)号：US20220379612A1
公开(公告)日：2022-12-01
申请号：US17325737
申请日：2021-05-20
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Utpal Kumar Sarkar , Carles Carmona Calpe , David Vendrell Tornero
Abstract: A pagewide array (PWA) print bar of a printing device prints a calibration pattern on a print medium. The print bar is nominally perpendicular to a media advancement direction in which the print medium advances relative to the PWA print bar during printing. An image of the printed calibration pattern is optically scanned, and a skew angle by which the PWA print bar deviates from true perpendicular to the media advancement direction is calculated based on the optically scanned image. The printing device is calibrated to compensate for the calculated skew angle during subsequent printing.
-
公开(公告)号：US20230004746A1
公开(公告)日：2023-01-05
申请号：US17305120
申请日：2021-06-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In some examples, a system detects a highlighted area in an image content, the highlighted area including a portion of the image content, and a highlighting mark that highlights the portion of the image content. The system applies a color adjustment process in the highlighted area, wherein the color adjustment process comprises adjusting a color of the highlighted area comprising the portion of the image content highlighted by the highlighting mark, and wherein the adjusting of the color of the highlighted area comprises adjusting color values of plural color components in a first color space.
-
公开(公告)号：US11509798B2
公开(公告)日：2022-11-22
申请号：US17188014
申请日：2021-03-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: In one example in accordance with the present disclosure, a printing device is described. The printing device includes a print controller with a processor and memory. The print controller generates print instructions. Specifically, the print controller receives print image data representing an image to be printed and identifies enclosed regions in a background print agent plane. The print controller also determines a size of the enclosed regions of background print agent plane and responsive to the size of an enclosed region being smaller than a threshold size, removes the enclosed region from the background print agent plane. The printing device also includes a print agent distribution system to apply the background print agent and the image print agent to a substrate according to the print instructions.
-
-
-
-
-
-
Search Results
7
records
(took 0.015 seconds)
