发明名称 |
Electrophotographic image forming method |
摘要 |
An electrophotographic color image forming method whereby black, yellow, magenta and cyan toner images are superimposed on a photoconductor (54) to transfer to paper, exposure being changed between black and color in a method in which development of black is performed by a contact developing method, and development of color by a direct current electric field projection developing method. Also, in exposure for color, the exposure amount is adjusted between highlight and shadow areas. A full color image of high saturation with good balance between black and color components is reproduced by changing the exposure amount between black and color. It is also possible to obtain a color image with good reproducibility of highlight areas as well as shadow areas.
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申请公布号 |
US5162820(A) |
申请公布日期 |
1992.11.10 |
申请号 |
US19910666754 |
申请日期 |
1991.03.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAMOTO, HAJIME;KURAMOTO, YUKIMASA;TAKASHIMA, YUJI;NAKAMURA, MASAHIKO;NAKANO, KENICHI |
分类号 |
G03G15/01;G06K15/12;H04N1/409;H04N1/50 |
主分类号 |
G03G15/01 |
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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