Apparatus and Method for Destroying an Encoder Wheel
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United States of America Patent
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Issued Date -
Aug 9, 2012
app pub date -
Feb 3, 2011
filing date -
Feb 3, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Image recording devices, such as electrophotographic devices, laser printers, copiers, and fax machines, often have a cartridge that utilizes an encoder wheel assembly in addition to or instead of a chip for determining toner load. It may be desirable to alter the encoder wheel or part of the cartridge, either by the printer or the cartridge, to permit a deliberate end of life function situation that requires the replacement of the cartridge, encoder wheel, or encoder wheel assembly components. This thereby controls the remanufacture or replacement of the toner cartridge in a way that is desirable to the manufacturer and prevents unauthorized refilling of the cartridge.
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