Print control device for a thermal printer

Details Print control device for a thermal printer Print control device for a thermal printer

2011-05-10

2011-05-10

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Having driving circuitry for recording means

Reexamination Certificate

active

07940288

ABSTRACT:
A print control device for a thermal printer for detecting a failure in a component of the thermal printer to prevent an incorrect printing of an item to be printed which provides for a thermal resistor associated with each component of the printer to render the printer inoperative when the component becomes defective, and a MOSFET for each thermal resistor associated with a feeder, a driver and a group detector which prevents the printer from printing when the thermal resistor changes the effective resistance in the circuit with the MOSFET and the group detector and driver.

REFERENCES:
patent: 4996487 (1991-02-01), McSparran et al.
patent: 5132709 (1992-07-01), West
patent: 5422662 (1995-06-01), Fukushima et al.
patent: 6217144 (2001-04-01), Myung

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