Apparatus for controlling the rotational motion of a fixing apparatus
US6035174A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a fixing apparatus having a flexible metal fixing sleeve provided around a holder, which holds a coil inside, and heated by induction current of the coil, and a pressure roller that pinches the fixing sleeve between it and the holder by pressing on the holder, the following relation is satisfied: EQU (F1+F2)/F3.gtoreq.1.7 where symbols F1, F2 and F3 represent respectively during recording paper feeding: a drive force transmitted from the pressure roller to the fixing sleeve via recording paper in the region where the recording paper passes through; a drive force transmitted from the pressure roller directly to the fixing sleeve in the region where the recording paper does not pass through; and a friction resistance force generated between the inner surface of the fixing sleeve and the outer surface of the holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.