Enhanced discharge recovery for ink jet recording apparatus
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United States of America Patent
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Feb 22, 1994
Grant Date -
N/A
app pub date -
Aug 14, 1991
filing date -
Aug 17, 1990
priority date (Note) -
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Abstract
A recovery method, for an ink jet recording apparatus having a recording head for recording by discharging the ink with bubbles formed by thermal energy applied to a heat acting area and an energy supplying device for providing the thermal energy, includes a compulsory recovery mode in which more than 10.sup.3 predischarges are performed by supplying energy exceeding 1.48 times the minimum energy Eo necessary for producing the bubbles.
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