NEAR-END OF ROLL DETECTING APPARATUS FOR DETECTING NEAR-END OF ROLL OF RECORDING MEDIUM, AND PRINTER
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United States of America Patent
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N/A
Issued Date -
Sep 30, 2010
app pub date -
Mar 12, 2010
filing date -
Mar 30, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A printer includes a recording medium accommodating unit that holds an outer circumferential portion of a recording medium wound in a roll, a printing unit that prints on the recording medium fed from the recording medium accommodating unit, a first detecting lever that is biased to abut a side aspect of the recording medium and that includes on a tip, a first protrusion that enters a space of a roll-core part in the center of the recording medium when the roll-core part is moved to a predetermined position by the weight of the recording medium as the recording medium is consumed, and a detecting switch that converts an action of the first detecting lever into an electric signal, where the first protrusion is provided on the first detecting lever being rotatable in a direction that the roll-core part moves to be detached from the recording medium accommodating unit.
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