Exposure controlling apparatus for electrophotographic copying m

Details Exposure controlling apparatus for electrophotographic copying m Exposure controlling apparatus for electrophotographic copying m

1976-08-25

1978-06-20

Pellinen, A. D.

Photocopying

Including fiber optics

355 36, 355 71, G03G 1504

Patent

active

040958841

ABSTRACT:
An exposure controlling apparatus for electrophotographic copying machines comprises an operating member which is operable externally of the machine to control the amount of exposure. The operating member is normally biased to return to its neutral position, but can be temporarily held in its operative position when operated. The temporary retention is released upon completion of a copying operation, allowing the operating member to return to its neutral position.

REFERENCES:
patent: 3731611 (1973-05-01), Aasen et al.
patent: 3771867 (1973-11-01), Moser
patent: 4003652 (1977-01-01), Allen et al.

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