Invention Grant
US07809299B2 Image forming apparatus for forming color images and monochrome images
有权
用于形成彩色图像和单色图像的图像形成装置
- Patent Title: Image forming apparatus for forming color images and monochrome images
- Patent Title (中): 用于形成彩色图像和单色图像的图像形成装置
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Application No.: US11615318Application Date: 2006-12-22
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Publication No.: US07809299B2Publication Date: 2010-10-05
- Inventor: Satoru Yamamoto , Eiichi Motoyama , Shokyo Koh , Mitsuhiko Sato , Takashi Fujimori , Hidenori Sunada
- Applicant: Satoru Yamamoto , Eiichi Motoyama , Shokyo Koh , Mitsuhiko Sato , Takashi Fujimori , Hidenori Sunada
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2002-317753 20021031
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G15/01
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.
Public/Granted literature
- US20070103702A1 IMAGE FORMING APPARATUS Public/Granted day:2007-05-10
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