Image forming apparatus

Details Image forming apparatus Image forming apparatus

1987-03-23

1989-03-21

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 4, G03G 1501, G03G 2100

Patent

active

048148237

ABSTRACT:
An image-forming apparatus is provided with a photosensitive drum rotatably located in a housing, and a developing device for developing the latent image formed on the surface of the photosensitive drum. A first developing unit of the developing device develops the latent image by a first red developing agent. A second developing unit develops the latent image by a second black developing agent. The first and second developing units are alernatively driven by a switch provided on a control panel which is located on the housing. A copy mode for black is automatically established when the power is turned on or if no operation is performed for a prescribed time after a foregoing copying operation, in a mode for any other color than black, is ended.

REFERENCES:
patent: 3960445 (1976-06-01), Drawe
patent: 3970042 (1976-07-01), Rees
patent: 3987756 (1976-10-01), Katayama et al.
patent: 4077358 (1978-03-01), Kito
patent: 4090787 (1978-05-01), Hubbard et al.
patent: 4097139 (1978-06-01), Hauser et al.
patent: 4155638 (1979-05-01), Blitzer
patent: 4165165 (1979-08-01), Iwami et al.
patent: 4232961 (1980-11-01), Masuda
patent: 4264185 (1981-04-01), Ohta
patent: 4422405 (1983-12-01), Kasahara et al.

Affiliated with

Also associated with

Rating

Image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-480765