Cover member, developing cartridge and developing unit for image forming apparatus
US7890022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jan 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1869
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing unit includes a developer cartridge containing developer and a developing cartridge with a developing cartridge body comprising a mounting portion and a cover member. The mounting portion accepts the developer cartridge for replenishing developer consumed by the developing cartridge. The cover member closes an opening of the mounting portion when the developer cartridge is not inserted into the mounting portion. When a developing unit is initially constructed, printing is performed using developer contained in the developing unit. A developer cartridge containing developer can be inserted into the developing unit, allowing the supply of developer in the developing unit to be replenished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.