Toner cartridge for an image forming apparatus
US4963938A · kind A · utility
8Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Jun 9, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A structure of a toner cartridge removably mounted on a developing unit of an image forming apparatus. Once a toner end mode is set due to the exhaustion of toner which is accommodated in the toner cartridge, it is prevented from being reset unless the empty cartridge is replaced with a full toner cartridge. The toner cartridge has a member capable of resetting a toner end mode only when the cartridge is loaded in a cartridge container for the first time. This member is cut off or permanently deformed when the toner cartridge is inserted into the cartridge container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.