Fixing device preventable unevenness of heat generation of paper passing region
US8989642B2 · kind B2 · utility
0Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device includes a heating member, a pressing member, and an induction heating unit. In this fixing device, (i) a wound width Wc of a center portion of an induction heating coil in a longitudinal direction seen from an axial direction of the heating member, (ii) a wound width Wp in the vicinity of and inside edges of a maximum recording medium passing region of a recoding medium, and (iii) a wound width We of at least one of both edges of the induction heating coil in the longitudinal direction satisfy parameters that the wound width Wc is smaller than the wound width Wp and is larger than or equal to the wound width We.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.