Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining method
US7457550B2 · kind B2 · utility
17Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Apr 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0091
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A time point at which a predetermined period elapses since the start of use of a copying machine as a detection subject after factory shipment or repair is obtained. Pieces of set information, which are combinations of various types of information until the time point is reached are sequentially stored to construct a normal set information group. After the time point is reached, presence of abnormality in the copying machine is determined based on the normal set information group and the various types of information obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.