Development roller, development roller base, development roller manufacturing method, and image forming apparatus
US7203451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jan 8, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0634
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a development roller disposed in proximity of a photosensitive body which is charged by a charging member and on which an electrostatic latent image is formed, the development roller performing development by transferring toner to the photosensitive body. The development roller includes a toner layer formation area where a toner layer is formed on a surface of a development roller main body portion and a small diameter portion which has a diameter smaller than that of the toner layer formation area and which is located in at least a part of an area where the toner layer is not formed on the surface of the development roller main body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.