Image forming apparatus fixing a toner image on recording material with a fixing portion having a fixing sleeve and pressing roller, at least one of which is grounded
US8600259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2010 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes: an image bearer bearing a toner image; a transferer transferring the toner image from the image bearer onto a recording material and including a transfer member forming a transfer nip between itself and the image bearer; and a fixer fixing portion for fixing on the recording material the transferred toner image and including a fixing sleeve, a heater contacting an inner surface of the fixing sleeve, and a pressing roller for forming a fixing nip between itself and the heater through the fixing sleeve. At least one of the fixing sleeve and the pressing roller is grounded through a first series circuit consisting of a rectifying element and a first resistance element and is grounded through a second series circuit, which is connected to the first series circuit in parallel, consisting of a capacitive element and a second resistance element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.