Method of deelectrification in an electrophotographic apparatus

Details Method of deelectrification in an electrophotographic apparatus Method of deelectrification in an electrophotographic apparatus

1989-08-22

1991-01-15

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355204, 355219, G03G 2100, G03G 1502

Patent

active

049857304

ABSTRACT:
An electrophotographic recording apparatus comprising a rotatable photosensitive drum and unit for electrifying the drum, depositing an electrostatic latent image on the drum, developing the latent image, transferring the image on the drum to printing paper, and optical-deelectrifying the drum. In this method, the optical deelectrification unit is located at a position opposite to the drum with respect to a passage of the printing paper, and an optical deelectrification beam is irradiated to the drum only when the printing paper interrupts an optical path of the deelectrification light toward the drum.

REFERENCES:
patent: 4355885 (1982-10-01), Nagashima
patent: 4375328 (1983-03-01), Tsuchiya et al.
patent: 4511240 (1985-04-01), Suzuki et al.
patent: 4540270 (1985-09-01), Imanaka et al.
patent: 4659209 (1987-04-01), Yamada
patent: 4750019 (1988-06-01), Kamitani
patent: 4785324 (1988-11-01), Yamazaki et al.

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