Electrophotograhic apparatus and method for preventing attractio

Details Electrophotograhic apparatus and method for preventing attractio Electrophotograhic apparatus and method for preventing attractio

1993-03-17

1994-01-25

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355309, 355315, G03G 1514

Patent

active

052820041

ABSTRACT:
The present invention provides an electrophotographic copying apparatus in which a copy sheet is attracted to and delivered by a transfer belt to perform a transfer operation, wherein a sag of the leading end of the copy sheet is removed to prevent the copy sheet from being attracted to a photoreceptor, venting method of preventing attraction of the copy sheet. Stacked copy sheets are individually separately supplied, with each of the copy sheets being electrostatically attracted to and delivered by the transfer belt. The copy sheet is held between the photoreceptor and the transfer belt and is in contact with them. The photoreceptor carries an electrostatic latent image corresponding to an image information and a toner electrostatically attracted to the electrostatic latent image. The toner image on the photoreceptor is transferred to the copy sheet. The leading end of the copy sheet delivered to a transfer section defined by the photoreceptor, the transfer belt and a transfer corrotron is slightly bent toward the photoreceptor.

REFERENCES:
patent: 3687539 (1972-08-01), Furuichi
patent: 4408861 (1983-10-01), Hukuda et al.
patent: 4411511 (1983-10-01), Ariyama et al.
patent: 4627718 (1986-12-01), Wyer
Goel, Xerox Disclosure Journal, vol. 2, No. 1, Jan./Feb. 1977.

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