Ink jet recording apparatus
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United States of America Patent
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-
Oct 5, 1999
Issued Date -
N/A
app pub date -
Jan 23, 1996
filing date -
May 18, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet recording apparatus, including a plurality of recording heads each having an ink outlet, a liquid passage communicating with the outlet and an ejection energy generating element for generating energy for ejecting ink through the outlet; a refresher for refreshing the ink in the passage by driving the ejection energy generating element to eject the ink when a recording operation of the apparatus is not performed; and a controller for changing a driving condition for the ejection energy generating element by the refresher for the recording heads.
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