Developing device, image forming apparatus, and development error detecting method
US7831182B2 · kind B2 · utility
6Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2008 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0806
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A disclosed developing device includes a developing roller; a supply roller that is in contact with the developing roller and configured to supply toner to the developing roller; a current measuring unit configured to measure an electric current that flows from the developing roller to the supply roller when the toner is supplied from the supply roller to the developing roller; and an error determining unit configured to detect a development error of the developing roller based on the electric current measured by the current measuring unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.