Electrostatic copying apparatus

Details Electrostatic copying apparatus Electrostatic copying apparatus

1981-04-03

1983-05-10

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3CH, 355 3SH, 355 14SH, 355 14R, 271171, 271DIG3, G03G 1500

Patent

active

043826741

ABSTRACT:
An electrostatic copying apparatus including detecting means for detecting the longitudinal size of the copying paper unit and a control means for operating the charging corona-discharge device only for a time period corresponding to the detected longitudinal size of the copying paper.

REFERENCES:
patent: 3114020 (1963-12-01), Hall
patent: 3692403 (1972-09-01), Turner
patent: 3944356 (1976-03-01), Hayne
patent: 3998548 (1976-12-01), Wakatsuki
patent: 4009957 (1977-03-01), Suzuki et al.
patent: 4021855 (1977-05-01), Czonka et al.
patent: 4087178 (1978-05-01), Pfeifer et al.
patent: 4178092 (1979-12-01), Yamamoto et al.
patent: 4213110 (1980-07-01), Holce
Colglazier et al., IBM Tech. Disclosure Bulletin, vol. 18, No. 7, p. 2057, Dec. 1975.

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