Ink jet recording apparatus, method for determining reduced ink remains, and information processing apparatus
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Jul 14, 1995
filing date -
Jul 15, 1994
priority date (Note) -
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Abstract
An ink jet recording apparatus is provided with at least one first electrode at least in either a recording head or ink retaining member, dielectric adjacent to the first electrode or laying between the first electrodes, a second electrode electrically connected to the first electrode through the dielectric and ink, power supply to apply and release voltage to and from the first electrode, potential difference detector for detecting the potential of the second electrode, and equivalent circuit to determine the ink remains at least in either one of the recording head and ink retaining member in accordance with the potential of the second electrode detected by potential difference detector. In this way, it is possible to provide an ink jet recording apparatus having equivalent circuit for detecting ink shortage, and expect a highly precise detection thereof, and also, to provide information processing systems having such recording apparatus for its output device.
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