公开(公告)号：US11577503B2

公开(公告)日：2023-02-14

申请号：US17177262

申请日：2021-02-17

Applicant: Xerox Corporation

Inventor： Jack T. Lestrange ,  Joseph C. Sheflin ,  Palghat S. Ramesh ,  Anthony S. Condello ,  Brian M. Balthasar ,  Seemit Praharaj ,  Chu-heng Liu ,  Paul J. Mcconville ,  Douglas K. Herrmann ,  Jason M. Lefevre

IPC: B41F33/00 ,  B41M1/06 ,  G01F1/28 ,  G01N33/32

Abstract: A drag force sensor on a fountain solution carrier roller surface measures drag force of a fountain solution layer on the fountain solution carrier roller surface in real-time during a printing operation. The measured drag force is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.