Fixing device
US10877412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jan 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device including an endless belt, a heat source, a rotatable member forming a nip together with a belt, a nip forming member, a contact member contacting an inner peripheral surface of the belt, a reflecting portion reflecting radiation heat from the heat source toward the nip forming member, a heat conducting portion, and a heat insulating member. The nip forming member includes a first member having a U-shape made of metal and open on a side opposite from the rotatable member and a second member provided inside the first member. The heat conducting portion conducts heat of the reflecting portion to the contact member. The heat insulating member is provided between the first member and the second member. A thickness t (μm) and thermal conductivity λ (W/m·K) of the heat insulating member satisfy: t≥100 (μm)0.02 (W/m·K)≤λ≤0.05 (W/m·K).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.