Electrostatic latent image-developing device and toner cartridge used therefor
US5142335A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1991 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Nov 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic latent image-developing device is equipped with a toner cartridge-holding means and a toner cartridge fitted thereto. The toner cartridge includes a container with a toner discharge openings, a toner contained in the container, and a sealing means for sealing the toner discharge opening. The sealing means is constituted by a tape member that is provided to move across the toner discharge opening, and a toner passage opening is formed in the tape member. The toner discharge opening is opened when the tape member is so moved that the toner passage opening is positioned at the toner discharge opening. The toner cartridge-holding means includes a hoist frame that moves up and down, and the toner cartridge is held in this hoist frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.