Toner level sensing for a replaceable unit of an image forming device
US9891553B2 · kind B2 · utility
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2References
15Claims
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Key dates
| Filing date | Sep 28, 2016 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/556
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for estimating an amount of toner remaining in a reservoir of a replaceable unit for an image forming device according to one example embodiment includes receiving by processing circuitry pulses from a sensor. The processing circuitry counts the number of the pulses received from the sensor. Upon receiving a request from a controller of the image forming device, the processing circuitry sends to the controller of the image forming device the count of the pulses received from the sensor and resets the count of the pulses received from the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.