| 发明名称 |
Electrophotographic method for reversal or positive-positive image formation |
| 摘要 |
An electrophotographic copying method for optionally producing either reversal or positive-positive copies from any original using the same photoconductive element and the same toner developing material by varying the exposure and electrostatic charging conditions.
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| 申请公布号 |
US4879196(A) |
申请公布日期 |
1989.11.07 |
| 申请号 |
US19870063467 |
申请日期 |
1987.06.18 |
| 申请人 |
AGFA-GEVAERT N.V. |
发明人 |
VAN BIESEN, JOZEF A.;DAES, GUIDO F.;VERSTRINGE, JAN B. |
| 分类号 |
G03G15/00;G03G13/22;G03G13/26;G03G15/05;G03G21/00 |
主分类号 |
G03G15/00 |
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