Printer and control method thereof

Incremental printing of symbolic information – Thermal marking apparatus or processes

Reexamination Certificate

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Details

C400S188000, C400S082000

Reexamination Certificate

active

07830404

ABSTRACT:
A printer includes a first print head that performs printing on one side surface of the print medium and a second print head that performs printing on the other side surface of the print medium and abnormality detection sensors that are attached respectively to the first and second print heads. A printer performs control such that in the case where any abnormality is detected in one of the first and second print heads, print data to be printed using one print head in which the abnormality has been detected is printed using the other print head which is normally operating.

REFERENCES:
patent: 5284816 (1994-02-01), Stephenson
patent: 2007/0273743 (2007-11-01), Yamada et al.
patent: 0947340 (1999-10-01), None
patent: 1862318 (2008-01-01), None
patent: 57-69071 (1982-04-01), None
patent: 11-286147 (1999-10-01), None
patent: 2007313850 (2007-12-01), None
patent: 2008079153 (2008-07-01), None
European Search Report For 09003314 Mailed Sep. 17, 2010.

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