Abnormality determining method, abnormality determining apparatus, and image forming apparatus
US7327962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2007 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/1229
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus is capable of specifying the type of an occurring abnormality to a certain extent while avoiding the increasingly complicated control that is caused when a plurality of abnormalities is detected individually according to the presence of their respective causes. A normal group data set, which is a collection of normal value combinations relating to grouped information constituted by a plurality of information of differing types, is stored in RAM or ROM serving as information storage device of a control unit. At least two or more sets of grouped information, including first grouped information constituted by a plurality of different types of information, and second grouped information constituted by a plurality of information in a different combination to that of the first grouped information, are obtained from the RAM, the ROM, various sensors, and an operation display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.