Patent · US Active

System for predicting erasure of test patches in a printing apparatus

US7418216B2 · kind B2 · utility

5Cited by

5References

15Claims

0Family size

Assignee

Xerox Corporation · US

Inventors

Michael Elliot · North Grafton, US
Stephen F. Randall · Colden, US
Michael J. Dahrea · Rochester, US

Key dates

Filing date	Sep 7, 2006
Grant date	Aug 26, 2008
Priority date	—
Expiry date	Apr 28, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG03G2215/00059
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In a printing apparatus having a rotatable imaging member, a test patch is created in a predetermined area of the imaging member. A density of the test patch is measured at least a first time, corresponding to a first rotation of the imaging member. Based at least partially on the measuring of the density of the test patch at least a first time, how many rotations in the future the predetermined area of the imaging member will be available for receiving new marking material is predicted.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.