Image forming apparatus
US8909079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0129
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a transfer bias generator including a transfer bias supply that supplies a transfer bias to a transfer nip formed between an image carrier and a first rotary body, and a controller that detects a toner adhesion amount at a predetermined region of the image carrier located immediately upstream from the transfer nip and having a predetermined length in a moving direction of the image carrier. The transfer bias generator outputs at least an alternating current component under one of constant voltage control and constant current control and changes a target output value of the alternating current component according to the toner adhesion amount detected by the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.