Ink jet recording apparatus and ink detection method in pertinent apparatus
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United States of America Patent
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Jan 6, 2004
Grant Date -
N/A
app pub date -
Aug 18, 2000
filing date -
Aug 25, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
In the configuration in which ink is normally ejected from an ink head from which the ink is ejected, the reliability of a decision result is improved for each of a plurality of different inks. A detection unit which outputs a detection signal by detecting the ink ejected from the ink jet head is used to perform detection by ejecting the ink in the vicinity including a detection position moving the ink jet head and the presence of ink ejection is decided by controlling the ink jet head so that at least one of the conditions such as an ejection start position, an ejection cycle of the ink, a travel speed of the ink jet head and the number of ejection times of the ink can be changed in accordance with light shielding characteristics of the ink ejected.
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