Photocopying – Contact printing – Light boxes
Patent
1987-10-06
1990-01-16
Prescott, A. C.
Photocopying
Contact printing
Light boxes
355204, 355326, 430 30, 430122, G03G 1504, G03G 1508
Patent
active
048946850
ABSTRACT:
A multicolor image forming method and apparatus wherein a reference toner image is formed on a non-transfer portion of an image retainer by a developing device, and image forming conditions are set in accordance with the reflective density of the reference toner image. The reference toner image is a pattern having a predetermined recording area percentage.
REFERENCES:
patent: 4313671 (1982-02-01), Kuru
patent: 4348099 (1982-09-01), Fantozzi
patent: 4372672 (1983-02-01), Pries
patent: 4533234 (1985-08-01), Watai et al.
patent: 4682880 (1987-07-01), Fujii et al.
Bierman Jordan B.
Konishiroku Photo Industry Co,., Ltd.
Prescott A. C.
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