Electrophotographic copying apparatus

Details Electrophotographic copying apparatus Electrophotographic copying apparatus

1985-08-28

1987-06-16

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3R, 355 14R, 355 7, G03G 1500

Patent

active

046732829

ABSTRACT:
An electrophotographic copying apparatus provided with a light receiving device disposed in a light path for receiving the light from the original document, a light shielding device disposed before the light receiving device and capable of altering a light receiving range of the light receiving device, a device for controlling a light shielding amount of the light shielding device so as to correspond to a size of the original document, and a device for controlling the image forming device based on outputs of the light receiving device.

REFERENCES:
patent: 4046467 (1977-09-01), Laskowski et al.
patent: 4215929 (1980-08-01), Sato et al.
patent: 4256400 (1981-03-01), Komori et al.
patent: 4338020 (1982-07-01), Yukawa et al.
patent: 4384272 (1983-05-01), Tanaka et al.
patent: 4582417 (1986-04-01), Yagasaki et al.
patent: 4585332 (1986-04-01), Shenoy

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