Duplicating system comprising electrophotographic copying appara

Details Duplicating system comprising electrophotographic copying appara Duplicating system comprising electrophotographic copying appara

1981-05-07

1983-10-11

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 1, 355 3SH, 355 11, 355 55, 355 66, G03G 1500

Patent

active

044088701

ABSTRACT:
A duplicating system comprises an electrophotographic copying apparatus which includes a first optical scanning system for making a slit exposure, a first document feeder for feeding a first document to be copied at a first speed with respect to the first optical scanning system, a rotating photosensitive drum for forming an electrostatic latent image corresponding to the image of document, and means for forming a duplicated copy with the aid of the latent image; and an option device detachably mounted onto the copying apparatus and comprising a second optical scanning system for making a slit exposure, a second document feeder for feeding a second document to be copied at a second speed with respect to the second optical scanning system and an optional optical system for projecting the image of second document onto the photosensitive drum. The first document feeder in the copying apparatus and the second document feeder in the option device are so constructed that the first and second documents are fed in the same direction.

REFERENCES:
patent: 3592539 (1971-07-01), Haslam et al.
patent: 3623806 (1971-11-01), Short
patent: 3747918 (1973-07-01), Margulis et al.
patent: 4170412 (1979-10-01), Grace et al.

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