System for initiating image-quality tests in a digital printer

Details System for initiating image-quality tests in a digital printer System for initiating image-quality tests in a digital printer

2006-08-22

2008-12-02

Lee, Susan S (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S072000

Reexamination Certificate

active

07460805

ABSTRACT:
A method of operating a digital printer comprises printing a machine-readable code and at least one test patch on at least one sheet. The photosensor detects the machine readable code on the moving sheet, and, in response to the detecting, initiates the photosensor reading the test patch on the moving sheet. The test patches can be distributed over many sheets, depending on the nature of the desired test routine and the type of sheet that has recently been output by the printer.

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