公开(公告)号：US11281946B2

公开(公告)日：2022-03-22

申请号：US16604177

申请日：2018-08-01

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

Inventor： Mark Shaw ,  Kenneth Scott Line ,  Kimin Kang ,  Hae-Kee Lee

IPC: G06K15/02 ,  G06K15/12 ,  B41J2/44 ,  B41J2/47 ,  B41J2/475 ,  B41J2/52

Abstract: Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form an image on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, designate a pixel of the received print job to form a covert dot pattern on the markings, where the pixel corresponds to a first laser intensity level; and adjust a laser intensity of the printing device to a second laser intensity level based on the first laser intensity level of the designated pixel to form the covert dot pattern.

公开(公告)号：US20210383177A1

公开(公告)日：2021-12-09

申请号：US16604177

申请日：2018-08-01

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

Inventor： Mark Shaw ,  Kenneth Scott Line ,  Kimin Kang ,  Hae-Kee Lee

IPC: G06K15/12 ,  B41J2/52 ,  G06K15/02 ,  B41J2/47

Abstract: Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form an image on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, designate a pixel of the received print job to form a covert dot pattern on the markings, where the pixel corresponds to a first laser intensity level; and adjust a laser intensity of the printing device to a second laser intensity level based on the first laser intensity level of the designated pixel to form the covert dot pattern.