Image forming apparatus and failure detection method therefor
US7920800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Jul 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00755
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes toner image forming devices for forming toner images of a plurality of mutually different colors, a toner image carrying member for carrying thereon the toner images of the plurality of colors to be transferred onto a recording medium at one time, an adhesion amount detection device for detecting a toner adhesion amount of each of the toner images, and a failure determination device for determining the presence or absence of a sign of failure in the toner image forming devices. The failure determination device determines the presence or absence of the sign of failure in one of the toner image forming devices on the basis of information based on adhesion amount detection results obtained through detection by the adhesion amount detection device of toner adhesion amounts of toner images formed on the toner image carrying member by the other toner image forming devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.