Device for determining quantities of consumable products contained in reservoirs and a document printing device having several different reservoirs of pigmented products
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United States of America Patent
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Aug 1, 2000
Grant Date -
N/A
app pub date -
Jun 24, 1998
filing date -
Jun 27, 1997
priority date (Note) -
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Abstract
Device for determining quantities of products contained in adjacent ones of plural reservoirs, by using a capacitive arrangement. According to the invention, two electrodes of the capacitive arrangement are disposed between two reservoirs and are in each case either sending electrodes to which a signal is applied, or receiving electrodes which transmit a signal. By virtue of this arrangement, it is possible to reduce parasitic coupling between different capacitors of the capacitive arrangement.
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