Ink jet recording apparatus
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United States of America Patent
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-
Jan 16, 2001
Grant Date -
N/A
app pub date -
Nov 12, 1997
filing date -
Nov 11, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An ink jet recording apparatus includes an ink consumption operating unit that adds a quantity of ink to be discharged by suction processing as a quantity of ink consumed before performing the suction processing. The ink jet recording apparatus includes also a suction control unit that performs the suction processing after such addition. A remaining ink level is calculated by estimating a quantity of ink to be used in a large volume for sucking as a quantity of ink consumed, and, even if a power supply switch is turned off before the sucking operation is terminated, the calculated remaining ink level as a quantity of ink consumed is added to a consumption storage unit 33. As a result, a possible erroneous overestimation of the remaining ink level in an ink cartridge can be avoided.
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