Developing device and electric energy supply part for applying developing bias voltage
US6366746B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer; wherein the developer carrying member includes a first cylindrical portion and a second cylindrical portion provision data an end of the first cylindrical portion and supported by bearing portion; a first electroconductive portion extended from an outside of the second cylindrical portion into an inside and electrically connected to an electroconductive portion outside the developing device with a gap from an inner surface of the second cylindrical portion; a second electroconductive portion contacted to an inner surface of the first cylindrical portion and rotatable with the first cylindrical portion and slidable on the first electroconductive portion; wherein a developing bias is applied to a first cylindrical portion through the first and second electroconductive portion from the outside electroconductive portion of the developing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.