Fixing apparatus and image forming apparatus
US9952542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Sep 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing apparatus includes a heating rotating member, a nip portion forming member, and a pressure member which, together with a first surface of the nip portion forming member, sandwiches the heating rotating member to form a nip portion. A plurality of grooves is provided on the first surface of the nip portion forming member, so that a size of an area in which the first surface of the nip portion forming member is in contact with the heating rotating member in an upstream area of the nip portion is less than a size of the area in a downstream area of the nip portion with respect to a center of the nip portion in a rotation direction of the heating rotating member. In addition, each groove of the plurality of grooves extends in a direction crossing the rotation direction of the heating rotating member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.