Image forming apparatus controlled by a plurality of image densi

Details Image forming apparatus controlled by a plurality of image densi Image forming apparatus controlled by a plurality of image densi

1984-08-06

1987-06-23

Grimley, A. T.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 68, G03G 1500

Patent

active

046748636

ABSTRACT:
An improved image forming apparatus for controlling image density at an optimum level. The image forming apparatus has a plurality of detectors for detecting an original image density. The detectors have mutually different detecting characteristics, wherein image forming conditions are controlled based on the outputs of the detectors. Control may be effected in accordance with a comparison of the detected values, and in accordance with a selected operation mode.

REFERENCES:
patent: 3650624 (1972-03-01), Yamada
patent: 3864035 (1975-02-01), Kuehnle
patent: 4239374 (1980-12-01), Tatsumi et al.
patent: 4378153 (1983-03-01), Nishimura et al.
patent: 4390266 (1983-06-01), Uchida

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