公开(公告)号：US12296585B2

公开(公告)日：2025-05-13

申请号：US17934723

申请日：2022-09-23

Applicant: Xerox Corporation

Inventor： Christine A. Steurrys ,  John P. Meyers

IPC: B41J2/045

Abstract: An inkjet printer configures the printheads in a printhead module in an orientation that attenuates a temperature differential between the ink drops ejected by adjacent printheads at a stitch area between the adjacent printheads. The reduced temperature differential helps ensure that the contrasts between the two inks ejected by the adjacent printheads is sufficiently similar that image quality is not adversely impacted.

公开(公告)号：US10105979B1

公开(公告)日：2018-10-23

申请号：US15687669

申请日：2017-08-28

Applicant: Xerox Corporation

Inventor： Linn C. Hoover ,  David A. VanKouwenberg ,  John P. Meyers

IPC: B41J29/393 ,  B41J2/36 ,  B41J2/205 ,  B41J2/01

Abstract: An inkjet printhead prints test patches of magnetic ink having magnetic particles using different ink droplet sizes on print media. A sensor scans the test patches to determine test patch densities. A processor determines a table-based density that produces a user-selected magnetic strength by applying the selected magnetic strength to a density and magnetic strength relationship table. The processor identifies a matching test patch as one of the test patches having a density that most closely matches the table-based density, identifies a selected droplet size as the ink droplet size used to print the matching test patch, and controls the printhead to produce magnetic ink droplets of the selected droplet size when printing a print job for the selected magnetic strength.

公开(公告)号：US20210187953A1

公开(公告)日：2021-06-24

申请号：US16719327

申请日：2019-12-18

Applicant: Xerox Corporation

Inventor： Chu-Heng Liu ,  Douglas K. Herrmann ,  Paul J. McConville ,  Jason M. LeFevre ,  Seemit Praharaj ,  David A. VanKouwenberg ,  Michael J. Levy ,  Linn C. Hoover ,  Thomas J. Wyble ,  John P. Meyers

IPC: B41J2/17 ,  B41J2/045 ,  B41J2/165

Abstract: An environmental conditioner in an aqueous inkjet printer conditions the print zone in the printer so aqueous ink at the nozzles of the printheads maintains its low viscosity state and does not dry. The environmental conditioner includes a humidifying chamber having a reservoir configured to contain a volume of water, a heater configured to heat the water in the water reservoir to a predetermined temperature range, an air inlet to move air into the humidifying chamber, an air discharge configured to remove humidified air from the humidifying chamber and direct the humidified air into a space between a faceplate of a printhead and a path for media passing by the faceplate of the printhead. The chamber can include an ultrasonic atomizer to produce a moisturized mist for absorption by the heated air or wicking material to transfer moisture to the air.

公开(公告)号：US20210187948A1

公开(公告)日：2021-06-24

申请号：US16724459

申请日：2019-12-23

Applicant: Xerox Corporation

Inventor： Seemit Praharaj ,  Douglas K. Herrmann ,  Paul J. McConville ,  Jason M. LeFevre ,  Chu-heng Liu ,  David A. VanKouwenberg ,  Michael J. Levy ,  Linn C. Hoover ,  Thomas J. Wyble ,  John P. Meyers

IPC: B41J2/125 ,  B41J2/165 ,  B41J29/393

Abstract: A directionality detector is configured for use in an inkjet printer to attenuate the effects of ink drying in the nozzles of a printhead during printing operations. The directionality detector includes an optical sensor that generates image data of a test pattern formed on media by the printer, a diffuser that emits humidified air toward the media before the media is printed, and a controller operatively connected to the optical sensor and diffuser. The controller is configured compare the image data of the test pattern to stored image data of the test pattern printed at a previous time and determine whether any difference between the two images is greater than a predetermined threshold. The controller then operates the diffuser to direct humidified air toward the media passing the diffuser using the differences between the stored image data of the test pattern and the image data of the test pattern.

公开(公告)号：US20240100825A1

公开(公告)日：2024-03-28

申请号：US17934723

申请日：2022-09-23

Applicant: Xerox Corporation

Inventor： Christine A. Steurrys ,  John P. Meyers

IPC: B41J2/045

CPC classification number: B41J2/04563 ,  B41J2/0454

Abstract: An inkjet printer configures the printheads in a printhead module in an orientation that attenuates a temperature differential between the ink drops ejected by adjacent printheads at a stitch area between the adjacent printheads. The reduced temperature differential helps ensure that the contrasts between the two inks ejected by the adjacent printheads is sufficiently similar that image quality is not adversely impacted.

公开(公告)号：US11059289B1

公开(公告)日：2021-07-13

申请号：US16724459

申请日：2019-12-23

Applicant: Xerox Corporation

Inventor： Seemit Praharaj ,  Douglas K. Herrmann ,  Paul J. McConville ,  Jason M. LeFevre ,  Chu-heng Liu ,  David A. VanKouwenberg ,  Michael J. Levy ,  Linn C. Hoover ,  Thomas J. Wyble ,  John P. Meyers

IPC: B41J2/125 ,  B41J29/393 ,  B41J2/165

Abstract: A directionality detector is configured for use in an inkjet printer to attenuate the effects of ink drying in the nozzles of a printhead during printing operations. The directionality detector includes an optical sensor that generates image data of a test pattern formed on media by the printer, a diffuser that emits humidified air toward the media before the media is printed, and a controller operatively connected to the optical sensor and diffuser. The controller is configured compare the image data of the test pattern to stored image data of the test pattern printed at a previous time and determine whether any difference between the two images is greater than a predetermined threshold. The controller then operates the diffuser to direct humidified air toward the media passing the diffuser using the differences between the stored image data of the test pattern and the image data of the test pattern.