Fixing device and image forming apparatus incorporating same
US9304454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a fixing member, a pressing member, heat generators, temperature detectors, a power source, and a heat controller. The heat generators include a first heat generator and second heat generators corresponding to an imaged area and a blank area, respectively, of a recording medium. The heat controller controls a power source according to data provided by the temperature detectors, such that a heating area of the fixing member heated by one of the second heat generators located adjacent to the first heat generator acquires a temperature of T1−ΔT, where T1 is a temperature corresponding to the imaged area higher than a temperature T2 corresponding to the blank area, and ΔT is a temperature lower than a difference between T1 and T2. The heat controller changes ΔT between when a first side thereof is printed upon duplex printing and upon single-sided printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.