Apparatus for forming visible black and white or color...

Details Apparatus for forming visible black and white or color... Apparatus for forming visible black and white or color...

2007-12-18

2007-12-18

Grainger, Quana (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S223000

Reexamination Certificate

active

11224956

ABSTRACT:
The image forming apparatus of the present invention includes a cyan color image formation unit which uses a cyan color toner to form a cyan color image; a magenta color image formation unit which uses a magenta color toner to form a magenta color image; a yellow color image formation unit which uses a yellow color toner to form a yellow color image; a black color image formation unit which uses a black color toner to form a black color image; an invisible image formation unit which uses an invisible toner to form an invisible image; and a control apparatus which, when only the black color toner and the invisible toner are used for formation of an image, stops respective image formation operations of the cyan color image formation unit, the magenta color image formation unit and the yellow color image formation unit.

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