Electrophotography – Machine operation – Job mode
Reexamination Certificate
2006-12-22
2010-10-05
Chen, Sophia S (Department: 2852)
Electrophotography
Machine operation
Job mode
C399S038000, C399S043000, C399S085000, C399S299000
Reexamination Certificate
active
07809299
ABSTRACT:
The present invention provides an image forming apparatus which, when switching operation from color image forming operation to monochromatic image forming operation, forms a monochromatic image on each of a prescribed number of sheets by stopping a part of the functions of yellow, magenta and cyan image forming sections of the color image forming operation, and thereafter, forms a monochromatic image only with a black-only image forming section, thereby permitting extension of service life of the image forming sections, while improving the productivity.
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Fujimori Takashi
Koh Shokyo
Motoyama Eiichi
Sato Mitsuhiko
Sunada Hidenori
Canon Kabushiki Kaisha
Chen Sophia S
Fitzpatrick ,Cella, Harper & Scinto
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