Developing device, process cartridge and electric energy supply part to developing roller
US6336012B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2000 |
| Grant date | Jan 1, 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 frame; a developer carrying member including a first cylindrical portion and a second cylindrical portion provided at an end of the first cylindrical portion; and a magnet provided in the developer carrying member, extending from inside of the developer carrying member to outside thereof. A first electroconductive portion is supported on the magnet; and a second electroconductive portion is electrically connected with an inner surface of the first cylindrical portion and in slidable contact with the first electroconductive portion. A third electroconductive portion includes a first contact portion electrically connected with the first electroconductive portion and a second contact portion. The third electroconductive portion is electrically connected with an electrical contact of a main assembly of an image forming apparatus so that a developing bias is applied to the developer carrying member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.