Image forming apparatus and toner replenishing method
US8755702B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Aug 30, 2011 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0849
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus that includes an exposure portion to expose a surface of an image carrier to form an electrostatic latent image; a developing device which includes an agitating roller to agitate developer, a developing roller to transfer toner of the developer on a surface of the image carrier and a toner concentration sensor to detect a toner concentration, the developing device developing the electrostatic latent image formed on the image carrier to form a toner image; a drive source to independently drive to rotate the developing roller and the agitating roller; and a control unit to control the drive source to change a rotational frequency of at least one of the developing roller and the agitating roller depending on the toner concentration detected by the toner concentration sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.