Ink jet printing apparatus and ink tank
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United States of America Patent
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Sep 23, 2014
Grant Date -
Sep 22, 2011
app pub date -
Mar 4, 2011
filing date -
Mar 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is an ink jet printing apparatus that receives light from the light emitting part of the ink tank in the light receiving part; on the basis of a result of the light reception, determines an attachment position of the ink tank; and controls the light from the light emitting part to inform the ink tank state, wherein the light emitting part has a plurality of light emitting elements that can respectively emit lights having different peak emission wavelengths. A peak sensitivity wavelength of the light receiving part is in the range not less than 760 nm and not more than 1100 nm; at least one of the plurality of light emitting elements has a peak emission wavelength in the range not less than 760 nm, and at least one has a peak emission wavelength in the range of 400 to 760 nm.
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