Self-coiling exposure shade

Details Self-coiling exposure shade Self-coiling exposure shade

1987-10-15

1989-01-31

Prescott, A. C.

Photocopying

Including fiber optics

355 14E, 355 67, 355 71, G03G 1500

Patent

active

048019690

ABSTRACT:
An improved electrophotographic reproduction apparatus having a photoconductive member mounted for movement about a closed loop path in operative relation to electrophotographic process stations and a movable scanning mechanism for optically exposing the photoconductive member to a light image of a document to be reproduced. The improvement comprises a self-coiling exposure shade for preventing unwanted illumination from exposing the photoconductive member. The exposure shade includes an opaque, low reflectance, sheet material treated to coil on itself. One end of the material is connected to the scanning mechanism and the opposite end is associated with a support rod oriented coaxially with the coiled material. As the scanning mechanism moves in a direction to pull on the exposure shade, the shade will uncoil; and when the scanning mechanism moves in the opposite direction, the shade will coil on itself about the support rod.

REFERENCES:
patent: 3677633 (1972-07-01), Huber
patent: 3724944 (1973-04-01), Sugita et al.
patent: 3771866 (1973-11-01), Ogawa
patent: 3807856 (1974-04-01), Rodriquez
patent: 4050812 (1977-09-01), Koizumi et al.
patent: 4129373 (1978-12-01), Ogura et al.
patent: 4129376 (1978-12-01), Yotsukura

Affiliated with

Also associated with

Rating

Self-coiling exposure shade does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-coiling exposure shade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-coiling exposure shade will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-180320