Ink-jet printer and method of controlling the same
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United States of America Patent
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-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Jan 22, 1999
filing date -
Jan 22, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ink-jet printer, having a print head for jetting ink, an ink supply tube connecting between an ink tank and the print head, an ink supply pump interposing in the ink supply tube, an ink return tube connecting between and the print head and the ink tank, an ink return pump interposing in the ink return tube, a controller for controlling the ink supply pump and the ink return pump to fill the print head with ink in the ink tank, the volume of ink supplied by the ink return pump is greater than the volume of ink returned by the ink return pump in filling mode. Thus a foreign matter in the ink-jet nozzles of the print head can be cleaned by flowing out a foreign matter in the ink-jet nozzles.
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