公开(公告)号：US20230339713A1

公开(公告)日：2023-10-26

申请号：US17920485

申请日：2021-10-26

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Suwei Wang ,  Yong Liu ,  Bo Liu ,  Zhong Gui Wang

IPC: B65H16/02

CPC classification number: B65H16/02 ,  B65H2801/75 ,  B65H2301/41522 ,  B65H2553/416

Abstract: A system to monitor available media in a printer is disclosed. The system may include a media holder that includes a support frame and a support member that extends from the support frame. The support member may be configured to receive a media roll. The system may include an optical sensor attached to the support frame of the media holder. The optical sensor may be configured to include an axial end of the media roll within a field of view of the optical sensor. The optical sensor may be configured to output sensor data that indicates whether the media roll has available media according to a radius of the axial end.