Photocopying – Contact printing – Light boxes
Patent
1988-06-02
1989-07-04
Moses, R. L.
Photocopying
Contact printing
Light boxes
355 77, 355218, 355328, 430 42, G03G 1501
Patent
active
048455245
ABSTRACT:
The disclosure relates to a method, using an electrophotographic system, including a first process of transferring the image of an original document to a copy sheet and a second process of transferring a half-tone solid on a specified region of the image on the copy sheet transferred at the first process. Accordingly, for example, when a copy sheet is white, a black toner is used in the first image forming process, and a white toner is used in the second image forming process, a white half-tone solid of the white toner is superimposed on the black toner image. As a result, the black toner image formed on the specified region looks soft half-tone.
REFERENCES:
patent: 4472047 (1984-09-01), Stoudt
patent: 4579443 (1986-04-01), Abuyama et al.
patent: 4582417 (1986-04-01), Yagasaki et al.
Nagao Taisuke
Okamoto Hiroshi
Tabuchi Kenji
Takebe Kaoru
Toyoshi Naoki
Minolta Camera Kabushiki Kaisha
Moses R. L.
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