发明名称 |
Method and apparatus for color image formation with gradation control capability |
摘要 |
A color image forming method and apparatus in which toner patterns, formed by toners of different colors, on an image bearing member, can be detected by a single sensor. Near-infrared light is emitted from an LED at each formation of a single-colored pattern on the photosensitive drum and the amount of near-infrared light reflected from the drum is detected by the sensor, for the purpose of effecting gradation control.
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申请公布号 |
US5697012(A) |
申请公布日期 |
1997.12.09 |
申请号 |
US19950428792 |
申请日期 |
1995.04.24 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SASANUMA, NOBUATSU;AMEMIYA, KOJI;TAKEUCHI, TATSUO;FUKUSHIMA, HISASHI;MORIGUCHI, HARUHIKO;OGATA, TAKAO |
分类号 |
G03G15/00;G03G15/01;G03G15/02;G03G15/04;G03G15/043;G03G15/08;H04N1/23;H04N1/40;H04N1/407;(IPC1-7):G03G15/00 |
主分类号 |
G03G15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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