Toner replenishing and developer replacing device for a developing unit of an image forming apparatus
US6125243A · kind A · utility
61Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0685
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a developing unit for forming an image by use of a two-ingredient type developer, i.e., toner and carrier mixture, includes a container for replenishing fresh toner and for replacing carrier deteriorated due to aging or a developer including such carrier. The developer in the developing unit will be collected based on the number of times that a part of the developer has been replenished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.