Image forming apparatus and temperature control device for fixing unit for use therewith
US5640231A · kind A · utility
22Cited by
13References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1994 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jun 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00118
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed an image forming apparatus having heating device having a heat generating resistor having a plurality of branches, conduction switching device for switching the conduction at the branch end of the heat generating resistor, and sensing device for sensing the paper size. The switching of conduction of the branch end is performed while not conducting to the heat generating resistor in accordance with the paper size sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.