Microprocessor and control apparatus in a photocopier

Details Microprocessor and control apparatus in a photocopier Microprocessor and control apparatus in a photocopier

1977-08-30

1981-12-22

Hix, L. T.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

364131, G03G 1500, G05B 1502

Patent

active

043068030

ABSTRACT:
A copier/duplicator machine is disclosed having a plurality of devices for controlling different operations within the machine which comprises a programmable controller having program memory storage means for storing program words defining an operating program for controlling at least some of the devices and a first and second document exposure station and first and second optical imaging means for imaging a document at said first and second exposure stations. The first and second imaging means image the document onto image receiving means along different optical paths as controlled by the programmable controller. The programmable controller also contains analog-to-digital and digital-to-analog conversion means for controlling at least some portion of the machine in a closed loop control circuit.

REFERENCES:
patent: 3690760 (1972-09-01), Banks et al.
patent: 3876106 (1975-04-01), Powell et al.
patent: 3877413 (1975-04-01), Rowell et al.
patent: 3940210 (1976-02-01), Donohue
patent: 3963345 (1976-06-01), Stemmle et al.
patent: 4054380 (1977-10-01), Donohue et al.
patent: 4058711 (1977-11-01), Ondercin et al.
patent: 4062061 (1977-12-01), Batchelor et al.

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