Liquid level detecting mechanism and ink jet recording apparatus having the mechanism
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United States of America Patent
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Nov 18, 1997
Issued Date -
N/A
app pub date -
May 9, 1996
filing date -
Jun 11, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid level detecting mechanism for detecting the liquid level in a vessel for storage of liquid, includes a light emitting unit and a light receiving unit disposed opposite to the vessel for storage of liquid or a chamber communicating with the vessel. The light receiving unit detects the liquid level in the vessel in accordance with the quantity of received light from the light emitted from the light emitting unit, and members in contact with liquid which are arranged between the light emitting unit and the light receiving unit, the members being formed of a material having high wettability relative to the liquid.
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