Monitor/warranty system for electrostatographic reproducing mach

Details Monitor/warranty system for electrostatographic reproducing mach Monitor/warranty system for electrostatographic reproducing mach

1989-04-20

1990-10-02

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355260, G03G 1500

Patent

active

049610880

ABSTRACT:
A monitor/warranty system for electrostatographic reproducing machines in which replaceable cartridges providing a predetermined number of images are used, each cartridge having an EEPROM programmed with a cartridge identification number that when matched with a cartridge identification number in the machine enables machine operation, a cartridge replacement warning count, and a termination count at which the cartridge is disabled from further use, the EEPROM storing updated counts of the remaining number of images left on the cartridge after each print run.

REFERENCES:
patent: 4500195 (1985-02-01), Hosono
patent: 4551000 (1985-11-01), Kanemitsu et al.
patent: 4585327 (1986-04-01), Suzuki
patent: 4586147 (1986-04-01), Tadokoro
patent: 4634258 (1987-01-01), Tanaka et al.
patent: 4751484 (1988-06-01), Matsumoto et al.
patent: 4774544 (1988-09-01), Tsuchiya et al.
patent: 4851875 (1989-07-01), Tanimoto

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