Image forming device
US7684714B2 · kind B2 · utility
2Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 2007 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Aug 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/553
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming device. A direct voltage power supply is independently provided for each charging device for each color, and an alternating voltage power supply is commonly provided to the charging device for each color. A current detecting section detects current which flows between each image carrying body and each charging device. A control device judges that the image carrying body is damaged when a detected current value is not less than a preliminarily set specified value when a direct voltage is sequentially independently applied to the charging device for each color when leakage of charging voltage is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.