公开(公告)号：US20230166934A1

公开(公告)日：2023-06-01

申请号：US17997263

申请日：2020-04-28

申请人： Hewlett-Packard Development Company, L.P.

发明人： Eli VELNER ,  Avihay ARGAMAN ,  Bar-Navi MIKI ,  Zelidor FINEBERG ,  Eyal GRAUER ,  Omer VASERMAN

IPC分类号： B65H23/02 ,  B41J11/42 ,  B65H23/032 ,  B65H26/00 ,  G01B11/14

CPC分类号： B65H23/0216 ,  B41J11/42 ,  B65H23/032 ,  B65H26/00 ,  G01B11/14 ,  B65H2511/512

摘要： In an example of the disclosure, a first optical sensor positioned adjacent to a web path and having a first sensor beam is utilized to identify a first signal value as the first optical sensor detects an eye-mark as the web is moved along the web path. A second optical sensor positioned adjacent to the web path, downstream of the first optical sensor, and having a second sensor beam, is utilized to identify a second signal value as the second optical sensor detects the eye-mark. A lateral misalignment of the web is determined based upon the first signal value, the second signal value, and a lateral offset of the first sensor beam from the second sensor beam.