Image formation device enabling switching between color...

Details Image formation device enabling switching between color... Image formation device enabling switching between color...

2007-06-26

2007-06-26

Nguyen, Vincent Q. (Department: 2858)

Electrophotography

Image formation

Development

C399S227000

Reexamination Certificate

active

11028508

ABSTRACT:
An image formation device has an image carrier in which are formed latent images, and a development device into which development units housing toner are detachably installed. When development units with a plurality of colors are installed in respective installation positions of the development device, the image formation device operates in color printing mode, and when at least one black development unit is installed in any among the plurality of installation positions, and at least one among the development units with the colors other than black is not installed, even if at least one development unit in the plurality of colors other than black is installed, the image formation device operates in monochrome printing mode. When any of the C, M, and Y development units is removed from color mode state, the image formation device operates in monochrome printing mode.

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