Printing apparatus with immediate interrupt

Details Printing apparatus with immediate interrupt Printing apparatus with immediate interrupt

1995-04-18

1996-07-02

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

395113, G03G 1500

Patent

active

055327923

ABSTRACT:
In a control system for a laser printer, an AND gate is connected to a circuit system extending from a DC controller circuit to a driving circuit for a laser diode. A mask signal of "L" level is output from the port OPM of the DC controller circuit to the AND gate when a print stop key on an operation panel is switched on. Thereby, the print operation of a print mechanism is immediately stopped. This efficient method of interrupting printing prevents toner from being wasted on a printing error and allows immediate interruption when a printing error is discovered.

REFERENCES:
patent: 5018081 (1991-05-01), Yamaguchi et al.

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