Developing device using a single component developer
US4930438A · kind A · utility
Inventors
Key dates
| Filing date | Oct 21, 1987 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Oct 21, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0887
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device employing a non-magnetic one-component toner is provided and it includes a developing sleeve, which is driven to rotate in a predetermined direction past a developing region where toner carried on the sleeve is supplied to develop an electrostatic latent image formed on an image bearing member, a tank for storing therein a quantity of non-magnetic one-component toner and a flexible supply roller generally disposed between the tank and the developing sleeve for supplying the toner from the tank to the developing sleeve. The flexible supply roller rotates so as to be in sliding contact with the developing sleeve. With the provision of such a supply roller, even non-magnetic one-component toner can be suitably supplied to the developing sleeve to form thereon a thin film of charged toner for use in developing an electrostatic latent image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.