Electronic copying machine

Details Electronic copying machine Electronic copying machine

1982-01-25

1984-07-31

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3CH, 355 14E, G03G 1502

Patent

active

044626797

ABSTRACT:
An electronic copying machine having a control circuit with a microprocessor including a read-only memory which stores a predetermined timing constant to control a charging timing of a charger and an exposure timing of an exposure unit in such a manner that a leading end of a toner-image forming area of a photosensitive drum which corresponds to a leading end of a copying paper sheet is charged by the charger and exposed by the exposure unit only after the leading end is exposed to a transfer charger, separating charger, discharger and discharge lamp.

REFERENCES:
patent: 4239374 (1980-12-01), Tatsumi et al.
patent: 4348099 (1982-09-01), Fantozzi

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