Apparatus and method for forming an image using a developing device capable of obtaining a high quality image
US6295437A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a latent image bearing member to bear an electrostatic latent image, and a developer bearing member to bear a developer, in which the electrostatic latent image is formed on the latent image bearing member by first uniformly charging the latent image bearing member and then by performing an optical writing operation. The electrostatic latent image is visualized by supplying the developer borne on the developer bearing member to the latent image bearing member. A lubricant for reducing a friction coefficient of a surface of the latent image bearing member is supplied to the latent image bearing member and the lubricant has a charging polarity opposite to that of the developer. The friction coefficient of the latent image bearing member is maintained such that adhering of the developer to a background part of the latent image is prevented as a result of supplying the lubricant to the latent image bearing member. The lubricant, which includes a silicone resin, is supplied to the latent image bearing member such that the friction coefficient of the surface of the latent image bearing member is from about 0.1 to about 0.4. The friction coefficient of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.