Apparatus for adjusting exposure in electrostatic copier

Details Apparatus for adjusting exposure in electrostatic copier Apparatus for adjusting exposure in electrostatic copier

1976-03-30

1978-03-21

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3R, 355 71, G03G 1500

Patent

active

040800571

ABSTRACT:
An apparatus is provided for adjusting the exposure of the photoconductive member of an electrostatic copier, which permits fine adjustment of the exposure of the photoconductive member by providing a shade for the partial control of the light path for exposure, thereby effecting an error adjustment of the photoconductive member, the optical system, the projection lamp, etc., separately from the main exposure value control system.

REFERENCES:
patent: 2552990 (1951-05-01), McKay
patent: 3309973 (1967-03-01), Engler
patent: 3469916 (1969-09-01), Sloan
patent: 3606535 (1971-09-01), Koizumi
patent: 3609037 (1971-09-01), Suzuki
patent: 3963342 (1976-06-01), Stark et al.

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