Toner image fixing device
US5708951A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1996 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Oct 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner image fixing device which has a satisfactory self-stripping ability to suppress the formation of creases of an envelope, and to prevent the abrasion of the elastic layers of a pair of toner image fixing rollers. In the fixing device, surface strain .di-elect cons.h in the circumferential direction of the first elastic layer of a first toner image fixing roller which comes in contact with a non-fixed toner image on a recording medium, and surface strain .di-elect cons.p in the circumferential direction of the second elastic layer of a second toner image fixing roller are defined by: EQU .di-elect cons.h.gtoreq.0.0583 (.DELTA..di-elect cons.).sup.4 -0.6 (.DELTA..di-elect cons.).sup.3 +2.1917(.DELTA..di-elect cons.).sup.2 -3.65(.DELTA..di-elect cons.)+6 where .di-elect cons.h<6%, .DELTA..di-elect cons..ltoreq.3% and .DELTA..di-elect cons.=.di-elect cons.h-.di-elect cons.p.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.