TONER CARTRIDGE
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United States of America Patent
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N/A
Issued Date -
Jun 15, 2017
app pub date -
Apr 21, 2016
filing date -
Dec 9, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A toner cartridge includes a cylinder, a transmission member fixedly sleeved onto the cylinder, and a covering member sleeved onto the transmission member. The transmission member has a base pipe portion, a gear ring provided on the periphery of the base pipe portion and engaged with a driving gear of an electronic imaging device, and a protruded portion provided on the periphery of the base pipe portion. The peripheries of the protruded portion and the base pipe portion form a circumferential surface, so that a sensor in the electronic imaging device can sense positional variation of the circumferential surface during rotation of the transmission member. The sensor senses the pass of the protruded portion once in every revolution of the rotation of the transmission member. Therefore, the residual powder in the toner cartridge, which should be replaced according to an alarm of the electronic imaging device, is reduced.
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