Thermal head drive circuit and printer using the same

Details Thermal head drive circuit and printer using the same Thermal head drive circuit and printer using the same

2008-02-11

2009-08-25

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Having driving circuitry for recording means

Reexamination Certificate

active

07580052

ABSTRACT:
A thermal head drive circuit drives M number of thermal heads for printing one line and includes a delay unit that applies different time delays to M bits of print data to be supplied to the corresponding M thermal heads. The higher order the odd number thermal heads of the M thermal heads are, the greater are the time delays applied to the corresponding bits of the print data, while the higher order the even number thermal heads of the M thermal heads are, the less are the time delays applied to the corresponding bits of the print data.

REFERENCES:
patent: 2002/0109739 (2002-08-01), Edelen et al.
patent: 63-022668 (1988-01-01), None
patent: 2000-246938 (2000-09-01), None
Computer-generated translation of JP 2000-246938, published on Sep. 2000, cited in the IDS filed Mar. 4, 2008.

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