Image forming apparatus including a seal member in contact with an image bearing member and a flange provided at an end of the image bearing member
US7502574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Nov 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Toner remaining on a photosensitive drum may be prevented from being given out after a toner image is transferred, by causing a seal member to abut on both a photosensitive portion of the photosensitive drum and a flange disposed on each of ends of the photosensitive portion and having less hardness than the photosensitive portion, further a flange being configured to be smaller in outer diameter than the photosensitive portion so that a contact pressure of the seal member on the flange may be reduced, and accordingly, in an image formation apparatus, this may allow flange galling to reduce without seal characteristic degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.