Control system

Details Control system Control system

1975-03-24

1979-08-21

Hix, L. T.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

G03G 1500

Patent

active

041651707

ABSTRACT:
A control system for controlling the processing steps of an electrostatic printing machine including means for generating a series train of clock pulses, means for generating a series train of start or reset pulses and control logic responsive to the reset and clock pulses to generate a plurality of timed control signals for implementing certain of the processing steps. A transfer roller, the linear surface speed of which is synchronized with the moving speed of the photoreceptor, may be used to generate the reset pulses for the successive cycle of processing operation. The intervals between the successive reset pulses, called pitches, are in effect marked by the clock pulses, some of which are used to generate the timed control signals.

REFERENCES:
patent: 3301126 (1967-01-01), Osborne et al.
patent: 3355983 (1967-12-01), Bogart et al.
patent: 3372627 (1968-03-01), Murray et al.
patent: 3416860 (1968-12-01), Mihojevich et al.
patent: 3732005 (1973-05-01), Lloyd
patent: 3741640 (1973-06-01), Hickey et al.
patent: 3909128 (1975-09-01), Sohm

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