Fixing device in an image forming apparatus having multiple heater lamps
US6757503B2 · kind B2 · utility
3Cited by
3References
7Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/80
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device for an image forming apparatus includes a fixing heat roller having disposed therein a plurality of heater lamps and serving to press a paper sheet conveyed between the fixing heat roller and a pressure roller for heat fixing a toner image formed on the paper sheet. A control logic operates, in activating the heater lamps, to drive at least one of the heater lamps earlier than the other heater lamps and to drive the other heater lamps with a predetermined time delay. The at least one heater lamp of the plurality of heater lamps has a power consumption which is smaller than that of the other heater lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.