Developing device with a developing roller and using a single-component developer and method for producing such developing roller
US4899689A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1989 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Mar 10, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0636
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device including a developing roller which has a resilient support layer and a dielectric layer provided on the support layer and developing an electrostatic latent image formed on a photoconductive drum through the roller by using a single-component developer, i.e. toner. The variation of development characteristics ascribable to the developing roller is suppressed by providing a resilient material which constitutes the support layer with a resistance value less than a predetermined value that is mostly determined by a relationship between the resistance value and the developing time. Further, a method is described for producing a developing roller for the developing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.