Electrophotographic copying apparatus

Details Electrophotographic copying apparatus Electrophotographic copying apparatus

1987-11-12

1989-05-30

Prescott, A. C.

Photocopying

Contact printing

Light boxes

430 54, 355245, G03G 1500, G03G 1501, G03G 1508

Patent

active

048355666

ABSTRACT:
A first developing device is provided in a demountable manner near a photoconductor drum of an electrophotographic copying apparatus. There is further provided a second developing device most downstream along a direction of rotation of the photoconductor drum. Developer containing color toner is stored in the first developing device and developer containing black toner is stored in the second developing device. An outline image forming unit for forming an outline image can be installed in place of the first developing device. When the first developing device is installed, development of a copy image is effected by either the first developing device or the second developing device. When the outline image forming unit is installed in place of the first developing device, an outline image formed by the outline image forming unit is developed by the second developing device.

REFERENCES:
patent: 3960445 (1976-06-01), Drawe
patent: 3967891 (1976-07-01), Rippstein
patent: 4014607 (1977-03-01), Cherian
patent: 4222660 (1980-09-01), Furuichi et al.
patent: 4346982 (1982-08-01), Nakajima et al.
patent: 4386769 (1983-06-01), Ito et al.
patent: 4416535 (1983-11-01), Tottori
patent: 4480909 (1984-11-01), Tsuchiya
patent: 4483606 (1984-11-01), Kuwako et al.
patent: 4562130 (1985-12-01), Oka
patent: 4618249 (1986-10-01), Minor
patent: 4636060 (1987-01-01), De Schamphelaere et al.
patent: 4669854 (1987-06-01), Ichikana et al.
patent: 4750019 (1988-06-01), Kamitani
IBM Technical Disclosure Bulletin, vol. 12, No. 8, Jan. 1970.

Affiliated with

Also associated with

Rating

Electrophotographic copying 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 Electrophotographic copying apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophotographic copying apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2156710