Light pipe for accurate erasure of photoconductor charge

Details Light pipe for accurate erasure of photoconductor charge Light pipe for accurate erasure of photoconductor charge

1979-03-26

1981-03-10

Moses, R. L.

Photocopying

Including fiber optics

355 1, 355 70, 362 27, 362 31, 362800, G03G 1500

Patent

active

042550424

ABSTRACT:
Erase apparatus for use in an electrophotographic copier machine where an array of light-emitting diodes (LEDs) are placed adjacent one end of a light channel with the other end adjacent a moving photoreceptive surface. The channel allows light rays to pass freely from LED to LED but contains the rays in a direction parallel to the direction of photoreceptor movement. The channel may be comprised of sides with reflective surfaces normal to the photoreceptive surface or may be a solid plastic sheet through which the rays pass. In the latter embodiment, rays are internally reflected from the surfaces of the plastic sheet.

REFERENCES:
patent: 3330190 (1967-07-01), Taillie
patent: 3803409 (1974-04-01), Prochazka
patent: 3827799 (1974-08-01), Koizumi
patent: 3912387 (1975-10-01), Brooke
patent: 3932761 (1976-01-01), Ramsey
patent: 3948582 (1976-04-01), Martin
patent: 3967893 (1976-07-01), Majewicz
patent: 3968564 (1976-07-01), Springthorpe
patent: 4008954 (1977-02-01), Ogawa et al.
patent: 4035070 (1977-07-01), Hammond
patent: 4110026 (1978-08-01), Farley et al.
patent: 4133609 (1979-01-01), Arai

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