Image forming apparatus configured to control a transfer bias
US8923711B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0266
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus including: a photosensitive member; a charging member; a developer carrier; a transfer member; a charging control unit that applies a charging bias having the same polarity as a charged polarity of the developers to the charging member; and a transfer control unit that applies a transfer bias having a reverse polarity to the charged polarity of the developers to the transfer member, wherein when the transfer control unit sets the absolute value of the transfer bias to a first value, the charging control unit sets an absolute value of the charging bias to a third value, and wherein when the transfer control unit sets the absolute value of the transfer bias to a second value, the charging control unit sets the absolute value of the charging bias to a fourth value smaller than the third value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.