Heat fixing apparatus and grease composition for the heat fixing apparatus
US9581943B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a heat fixing apparatus, which suppresses the depletion of a lubricant applied to an inside of the heat fixing apparatus and which has long life and high reliability, the heat fixing apparatus including a heating rotary member and a pressurizing rotary member, and containing, as a lubricant in a sliding portion, (A) perfluoropolyether oil having a kinetic viscosity at 40° C. of from 100 to 200 mm2/s and an evaporation loss being 1.2 mass % or less in a case where 10 g of a sample of the perfluoropolyether oil is placed in a petri dish having an inner diameter of 41 mm and allowed to stand still at 250° C. for 200 hours and (B) polytetrafluoroethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.