Image forming apparatus with developing device, sensor, and controller
US8768184B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0893
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearing member, a developing device for developing an electrostatic latent image including a developer and a developer carrying member, a sensor for detecting information related to a toner charge amount of the developer, and a controller. An image forming period has a first period and a second period, during which different modes are executed by the controller to provide for a lower speed of the developer carrying member in the first period than in the second period. The controller is capable of executing an operation that lowers the potential difference between a non-image-forming portion of the image bearing member and the developing bias applied to the developer carrying member based on detection results of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.