Rotary developing device for an image forming apparatus
US5850586A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Nov 28, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/018
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a rotary developing device has a developing unit in which a plurality of developing chambers are arranged around an axis of rotation. The developing unit is rotated about the axis to bring one of the chambers to a developing position where an image carrier is located. In each of the chambers, part of a developer removed by a doctor blade is received by a guide and then released from the guide into the chamber. This part of the developer is agitated in the vertical direction together with the developer existing in the chamber by the rotation of the device. As a result, the developer is agitated and charged in a desirable manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.