Developing device
US6195516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0875
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device includes a receiving section for receiving a developer, a transferring chamber for transferring toner supplied from a toner cartridge, an auger formed to extend in the transferring chamber and rotated to transfer toner in the transferring chamber into the receiving section, and a developing roller for supplying toner in the receiving section to an electrostatic latent image on a photosensitive drum. An opening portion for permitting toner to be transferred is formed between the receiving section and the transferring chamber which accommodates the auger. An initial developer used when an image forming apparatus is started to be used is received in the transferring chamber and the opening portion between the transferring chamber and the receiving section is sealed. When the apparatus is started to be used, a seal member tightly closing the opening portion is removed and the initial developer in the transferring chamber is transferred into the receiving section via the opening portion by rotating the auger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.