Method for detecting whether a cartridge installed in an imaging apparatus is potentially counterfeit
US7280772B2 · kind B2 · utility
20Cited by
16References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Aug 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1823
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for detecting whether a cartridge installed in an imaging apparatus is potentially counterfeit includes determining whether a usage threshold has been reached by the cartridge; determining whether the cartridge was previously installed in the imaging apparatus; and determining that the cartridge is potentially counterfeit if the usage threshold has been reached and the cartridge was not previously installed in the imaging apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.