Printer system having microprocessor control

Details Printer system having microprocessor control Printer system having microprocessor control

B - Operations, Transporting

41

J

101/93

B41J 11/42 (2006.01) B41J 19/20 (2006.01)

Patent

CA 1126083

ABSTRACT A control system for the carriage drive of a line printer includes a microprocessor which controls a carriage drive stepper motor through programmable timers and interface adapter along with other non-print units of a printer mechanism. A control counter in the carriage drive responsive to feedback pulses from the stepper motor coacts with the timers to control various operation of the stepper motor during line feeding of a print medium and is used by the microprocessor for preventing loss of control of the carriage drive due to interrupts from other devices. EN979016

365433

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