Process cartridge and multi-color image forming apparatus using

Details Process cartridge and multi-color image forming apparatus using Process cartridge and multi-color image forming apparatus using

1989-07-12

1990-05-08

Moses, R. L.

Photocopying

Contact printing

Light boxes

355245, G03G 1500

Patent

active

049242679

ABSTRACT:
An image forming apparatus usable with a process cartridge detachably mountable thereto. The process cartridge includes a main cartridge containing a photosensitive member and process means as a unit. A subordinate process cartridge is detachably mountable to the main cartridge. The subordinate cartridge includes at least a developing device which is different from the developing device contained in the main cartridge so that a multi-color image can be formed if desired. The photosensitive member is used both for the main process cartridge and the subordinate cartridge.

REFERENCES:
patent: 4286861 (1981-09-01), Matsumoto et al.
patent: 4470689 (1984-09-01), Nomura et al.
patent: 4500195 (1985-02-01), Hosomo
patent: 4598993 (1986-07-01), Mizutani et al.
patent: 4605299 (1986-08-01), Mochimaru
patent: 4607941 (1986-08-01), Honda

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