Developing device for electrophotographic image recording apparatus
US5249020A · kind A · utility
10Cited by
18References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Jun 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an electrophotographic image developing device, a toner chamber, for accommodating toner to be used to develop an image, is arranged to be selectively coupled to one of a toner cartridge and an additional toner holding member. The additional toner holding member functions as an expansion of substantial toner accommodating space in the image developing device. In the toner hopper to be coupled with the toner holding member, the upper surface of the toner accommodated therein is leveled before it is transferred to the toner chamber. Alternately, the cartridge is constructed so that it is able to be coupled with the toner hopper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.