Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2009-03-04
2011-12-06
Do, An (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
08070253
ABSTRACT:
An inkjet printer and a head cleaning method for an inkjet printer reduce the time required for head cleaning while also reducing needless ink consumption. The control unit30of the printer1confirms if a timer AID flag, impact detection flag, startup process flag, AID hold flag, or cover closed flag is set before executing the cleaning process a first time. If any one of the flags is set, the possibility that there are numerous defective nozzles in the printer1is high, and a stronger or more intense cleaning process (CL1or CL2) is executed. Whether cleaning process CL1or CL2executes is determined according to the number of defective nozzles detected in the first nozzle check. If no flag is set, the weakest cleaning process (CL0) is executed.
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Kuroda Kiyomi
Motoyama Hiroyuki
Do An
Seiko Epson Corporation
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