Fixing apparatus with a temperature sensor detecting a temperature of a surface of a fixing belt
US10955775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image fixing device includes a rotatable fixing belt, a pressing roller, a nip forming member, a heating roller, a cooling fan, a temperature sensor, and a controller. The nip forming member contacts an inner surface of the fixing belt to sandwich the fixing belt between the pressing roller to form a nip. The heating roller stretches the fixing belt. The cooling fan cools the fixing belt and is opposite to the belt at a position downstream of the heating roller and upstream of the nip forming member in the rotational movement direction of the fixing belt. The temperature sensor detects a temperature of the fixing belt and is provided at a position downstream of the cooling fan and upstream of the nip. The controller controls the power supplied to the heater on the basis of an output of the temperature sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.