发明授权
US5160969A Image forming apparatus having a separate black developer stored for a
color image
失效
图像形成装置具有为彩色图像而存储的单独的黑色显影剂
- 专利标题: Image forming apparatus having a separate black developer stored for a color image
- 专利标题(中): 图像形成装置具有为彩色图像而存储的单独的黑色显影剂
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申请号: US707050申请日: 1991-05-29
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公开(公告)号: US5160969A公开(公告)日: 1992-11-03
- 发明人: Kenichi Mizuma , Hideya Furuta , Nobuo Kasahara , Noriyuki Kimura , Shinju Nagatsuna , Mitsuru Mamizuka , Yoshihiro Sakai , Kazunori Bannai , Kazushige Taguchi , Yasunori Kawaishi , Makoto Ohsaki , Tatsuo Hirono
- 申请人: Kenichi Mizuma , Hideya Furuta , Nobuo Kasahara , Noriyuki Kimura , Shinju Nagatsuna , Mitsuru Mamizuka , Yoshihiro Sakai , Kazunori Bannai , Kazushige Taguchi , Yasunori Kawaishi , Makoto Ohsaki , Tatsuo Hirono
- 申请人地址: JPX Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-163313 19890626; JPX1-149486 19891226; JPX2-158807 19900619; JPX2-167930 19900626; JPX3-131684 19910508
- 主分类号: G03G15/01
- IPC分类号: G03G15/01
摘要:
An image forming apparatus has a plurality of developing containers for developing an electrostatic latent image of a latent image carrier by toners having colors different from each other except for black; a black developing container for color for storing black toner for color and operated when the developed image on the latent image carrier every color is overlapped and transferred onto a transfer material to provide a color image; a black developing container for a monochromatic image for storing black toner for a monochromatic image and operated when the monochromatic image is obtained; and a device for arranging the respective developing containers such that the developing containers are opposite to the latent image carrier. The other image forming apparatuses are also shown.