Image forming apparatus having simultaneous multicolor copying m

Details Image forming apparatus having simultaneous multicolor copying m Image forming apparatus having simultaneous multicolor copying m

1989-01-18

1990-04-03

Moses, R. L.

Photocopying

Contact printing

Light boxes

355314, G03G 1501

Patent

active

049144863

ABSTRACT:
The present invention is directed to an image forming apparatus comprising, a copying machine including a plurality of developing units, and having a simultaneous multicolor copying mode for obtaining a multicolor copy by switching developing colors during one scanning operation, and an interrupt function for effecting interrupt copying, whereby when the simultaneous multicolor copying mode is executed, the interrupt copying is prohibited to prevent miscopying caused by interrupt copying at the simultaneous multicolor copying.

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