Heat roller type fixing device and method of producing the same
US4977308A · kind A · utility
7Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1988 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Jun 20, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heat roller type fixing device having a fixing roller and a pressing roller and applicable to an electrophotographic copier or like image forming apparatus, and a method of producing the same. The pressing roller is produced such that the content of 3- to 15-mer, preferably 3- to 10-mer, low-molecular weight siloxanes (oligomers) which are contained in the roller is less than 300 parts per million. While the fixing device is in operation, chargers built in the image forming apparatus are prevented from being whitened by pologomers which are evaporated from the pressing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.