Copying apparatus

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer

Patent

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Details

355 14R, G03G 1500

Patent

active

045838348

ABSTRACT:
A plurality of copying machines (12), (13), (14) are connected to a computer (39). Each copying machine (12), (13), (14) comprises sensor means (16), (17), (18), (19), (21), (22), (23), (24) for sensing various operating parameters thereof such as a total number of copies produced, machine malfunctions, amounts of remaining copy sheets and toner, etc. These parameters are all transmitted to the computer (39) which processes and prints them out. In response to a copying machine malfunction the computer (39) feeds back to the malfunctioning copying machine instructions for correction. The instructions are displayed at the copying machine. The computer (39) further computes the degree of degeneration of the photoconductive element of each copying machine (12), (13), (14) and controls the imaging exposure intensity and developing bias voltage in accordance therewith.

REFERENCES:
patent: 4071911 (1978-01-01), Mazur
patent: 4124887 (1978-11-01), Johnson
patent: 4144550 (1979-03-01), Donohue et al.

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