Serial communication apparatus and image forming apparatus including the same
US8515297B2 · kind B2 · utility
2Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jun 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2039
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus including a fixing device using an induction heating method determines a driving frequency for a switching element configured to drive an induction coil, according to a difference between a detected temperature of an electrically conductive heating element provided in the fixing device and a target temperature. When the determined frequency is a predetermined minimum frequency and a current flowing through the induction coil is at a predetermined value or less, the image forming apparatus generates a signal indicating the abnormality of electric power supplied to the induction coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.