Copying machine

Details Copying machine Copying machine

1988-11-04

1989-09-26

Prescott, A. C.

Photocopying

Contact printing

Light boxes

355204, 355206, 355308, G03G 1500

Patent

active

048704598

ABSTRACT:
A copying machine having a premaintenance system for maintaining various parts thereof based upon a value to be set for premaintenance of them which is renewed to that reflecting the number of copies counted from the latest maintenance to the present maintenance at least one time, which comprises a counter for counting the number of copies, a memory for memorizing the value to be set for premaintenance, a key for instructing completion of each maintenance operation and a premaintenance control means for renewing the value of premaintenance based upon the present count value counted by the counter from the latest maintenance to the present one.

REFERENCES:
patent: 4464044 (1984-08-01), Matsuyama
patent: 4490035 (1984-12-01), Sugiura
patent: 4494861 (1985-01-01), Tachika et al.
patent: 4496237 (1985-01-01), Schrow
patent: 4530593 (1985-07-01), Kasuya et al.
patent: 4553830 (1985-11-01), Nguyen
patent: 4588284 (1986-05-01), Federico et al.

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