Toner contamination preventive means

Details Toner contamination preventive means Toner contamination preventive means

1988-05-20

1990-11-13

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355 1, 355 30, G03G 2100

Patent

active

049705520

ABSTRACT:
An electrostatic photographic image forming apparatus for forming an electrostatic image on a photosensitive member by the light beam from a writing system and transferring to a transfer paper the image which has been made visible by a development apparatus. A shutter or a toner contamination preventive means is provided at the space defining an optical path extending between the photosensitive member and the lens of the writing system nearest to the photosensitive member.

REFERENCES:
patent: 4469430 (1984-09-01), Terashima

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