Unit checking device, unit, and image forming apparatus
US9423743B2 · kind B2 · utility
1Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2016 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Jan 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1892
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A unit checking device is provided which checks whether a unit detachably provided to a device body is new or old. The unit checking device includes a transistor for checking provided in the unit and configured to be destructed by power supplied from the device body; and an inspection device provided in the device body and configured to determine whether or not the transistor is destructed by applying a voltage to the transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.