Method and apparatus to store information on amount of toner used, and image forming device using the same
US8027595B2 · kind B2 · utility
0Cited by
8References
19Claims
0Family size
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Key dates
| Filing date | Jan 4, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1823
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus to store information on an amount of toner used. The method includes determining whether a customer replaceable unit monitor (CRUM) memory to store information on an amount of used toner is included in a cartridge of an image forming device; storing the information on the amount of used toner in a non-volatile memory of the image forming device when the CRUM memory is not included in the cartridge of the image forming device; and storing the information on the amount of used toner in the CRUM memory when the CRUM memory is included in the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.