Copying apparatus capable of copying in two colors simultaneousl

Details Copying apparatus capable of copying in two colors simultaneousl Copying apparatus capable of copying in two colors simultaneousl

1991-01-11

1992-05-19

Moses, R. L.

Photocopying

Contact printing

Light boxes

355245, 355326, G03G 1501

Patent

active

051152827

ABSTRACT:
An electrophotographic copying apparatus including an image forming device for scanning an image of an original document so as to form an electrostatic latent image of the image of the original document on a photosensitive member, three or more developing devices for developing the latent image, a selecting device for selecting two of the developing devices, a region designating device for designating, for the two selected developing devices, regions of the latent image to be developed, respectively and a device for sequentially actuating, on the basis of the designated regions, the two selected developing devices during one scanning operation of the image forming device so as to form a two-color image.

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