Methods to control transitions between color printing and...

Details Methods to control transitions between color printing and... Methods to control transitions between color printing and...

2008-03-17

2010-11-02

Lee, Susan S (Department: 2884)

Electrophotography

Image formation

Development

C399S055000

Reexamination Certificate

active

07826774

ABSTRACT:
The present application is directed to methods for transitioning between color printing and black-only printing in an image forming device. A cartridge is moved between a first position in which color printing may occur and a second position in which black-only printing may occur. In the first position, a color developer unit may be in contact with a color photoconductor unit. The color developer unit may be spaced from the color photoconductor unit in the second position. During the transition, a voltage supplied to the cartridge and a speed of a drive motor driving the cartridge may be adjusted.

REFERENCES:
patent: 5600430 (1997-02-01), Folkins et al.
patent: 2002268322 (2002-09-01), None

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