Frame, developing apparatus, process cartridge and electro-photographic image forming apparatus having a toner frame and a developing frame coupled thereto
US5689772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Jul 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A frame for a developing device for a process cartridge detachably mountable to a main assembly of an image forming apparatus, includes a developing frame having a mounting portion for mounting a developing roller for developing a latent image formed on an electrophotographic photosensitive member, the developing frame having a projection on a side opposed from a side provided with the mounting portion; a toner frame having a toner container portion for containing a toner usable for developing operation of the developing roller, the toner frame having an opening for supplying toner to the developing roller and a recess adjacent a longitudinal end of the opening; wherein the projection and recess are engageable with each other to couple the developing frame and the toner frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.