Transfer device and image forming apparatus
US8818221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2012 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Described herein is a transfer device that transfers a visualized image formed on an image carrier onto a recording medium. The transfer device includes an image carrier that carries a toner image, a contacting member that contacts the image carrier via a recording medium and a power source that outputs a transfer bias to transfer the toner image from the image carrier onto the recording medium at a transfer nip formed between the image carrier and the contacting member. The transfer bias has a direct current component and an alternating current (AC) component superimposed on the direct current component. The transfer device also includes a controller that controls the power source such that the controller controls a level of the direct current component output from the power source by a constant current control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.