公开(公告)号：US11214083B2

公开(公告)日：2022-01-04

申请号：US16661028

申请日：2019-10-23

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Angel Astorgano-Ballesteros ,  Ranjit Bhaskar ,  Praveen Boppana ,  Stuart Douglas Spencer

IPC: B41J13/00 ,  B41J11/00 ,  B41J29/393 ,  B41J25/308 ,  B41J29/38

Abstract: In one example in accordance with the present disclosure, a printing system is described. The printing system includes a media sensor to detect a presence of media at a particular point within the printing system. A stepper motor moves media through the printing system. A controller 1) monitors, for at least one pass of the media, a number of steps of the stepper motor to pass the media between the media sensor and a print position, 2) stores the number of steps of the stepper motor in a memory device, and 3) adjusts operation of subsequent passes of the media based on stored number of steps. A memory device of the printing system stores the number of steps of the stepper motor, for at least one pass of the media.

公开(公告)号：US20210122178A1

公开(公告)日：2021-04-29

申请号：US16661028

申请日：2019-10-23

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Angel Astorgano-Ballesteros ,  Ranjit Bhaskar ,  Praveen Boppana ,  Stuart Douglas Spencer

IPC: B41M5/385 ,  B41J25/308 ,  B41J29/393

Abstract: In one example in accordance with the present disclosure, a printing system is described. The printing system includes a media sensor to detect a presence of media at a particular point within the printing system. A stepper motor moves media through the printing system. A controller 1) monitors, for at least one pass of the media, a number of steps of the stepper motor to pass the media between the media sensor and a print position, 2) stores the number of steps of the stepper motor in a memory device, and 3) adjusts operation of subsequent passes of the media based on stored number of steps. A memory device of the printing system stores the number of steps of the stepper motor, for at least one pass of the media.

公开(公告)号：US20220001675A1

公开(公告)日：2022-01-06

申请号：US17258469

申请日：2019-03-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Praveen Boppana ,  Ranjit Bhaskar ,  Jay S. Gondek

IPC: B41J2/36 ,  B41J2/355 ,  B41J2/375

Abstract: An example is given of a non-transitory computer-readable medium to store machine-readable instructions to be executed by a controller. The controller controls a heating element to print pixels of an image. The controller calculates an estimated thermal energy accumulation based on control of the heating element. The controller controls the heating element to print subsequent pixels based on the estimated thermal energy accumulation.