Developing apparatus and method in image forming apparatus
US6810223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming an image in a developing apparatus of an image forming apparatus and an image forming apparatus including a retrieving/auxiliary developing roller being in contact with the circumference of the photosensitive drum to retrieve or collect toner remaining on a region other than an image region of the circumference of the photosensitive drum and to first develop the latent electrostatic image, a first toner layer control member uniformly re-distributing the remnant toner and electrifying toner on the circumference of the retrieving/auxiliary developing roller and a developing roller having a gap with the circumference of the photosensitive drum to secondly develop the firstly developed latent electrostatic image so as to completely visualize the latent electrostatic image, a supply roller supplying toner to the developing roller, and a second toner layer control member for regularly coating the toner, which is supplied by the supply roller, throughout the circumference of the developing roller and controlling the amount of the electrification of the toner of the developing roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.