Fixing device and image forming apparatus with nip portion that prevents belt cracking and oil leakage
US12393145B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2024 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Jan 29, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing device includes an endless belt configured to heat a recording material, a pressure member contacting an outer circumferential surface of the endless belt to form a nip portion, and a pad. A length of the endless belt is larger than a length of the pad in a width direction of the endless belt. The pad includes a first surface forming the nip portion, a second surface facing the first surface, and a third surface connecting the first surface and the second surface in the width direction and formed in a conveyance direction of the recording material. And the third surface has a curved shape in a cross section orthogonal to the conveyance direction of the recording material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.