Image forming apparatus
US9958805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0812
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a developing device including a developer carrying member, a developer supplying member and a regulating member. Also provided are a first power source for the developer carrying member, a second power source for the regulating member, and a controller. In a period from a start of a developing operation to an end of the developing operation for printing an image on a single recording material, the controller effects control of a potential difference between the developer carrying member and the developing blade so that a force for urging the developer from the regulating member toward the developer carrying member acts on the developer at a contact portion between the regulating member and the developer carrying member. The force acting on the developer being is stronger at the end of the developing operation than at the start of the developing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.