Apparatus for detecting whether a replaceable cartridge is new o

Details Apparatus for detecting whether a replaceable cartridge is new o Apparatus for detecting whether a replaceable cartridge is new o

1990-03-28

1991-10-01

Moses, R. L.

Photocopying

Contact printing

Light boxes

355245, G03G 1500

Patent

active

050538160

ABSTRACT:
A laser printer includes a photosensitive drum, a developing device, a transferring device, and a fixing device. The photosensitive drum and the developing device are mounted along with a process cartridge within one body. The process cartridge is detachably inserted into the body. When the process cartridge is out of the body, the state of the process cartridge is treated as being "new". The state of the process cartridge is changed from the "new" state to a "used" state after an initializing operation of the process cartridge after it is completed and inserted into the body.

REFERENCES:
patent: 4956668 (1990-09-01), Arnold et al.

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