Developer unit and a toner hopper for an image forming device
US5121165A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0886
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner hopper which is arranged upwards of the developing unit is elevatably supported in the image forming device in the vertical direction thereof and the connection between the toner hopper and the developing unit can be cancelled by lifting up the toner hopper when drawing out the developing unit so that the structure of the connection portion therebetween can be simplified and the sliding portion can be eliminated to thereby eliminate wearing at the connection therebetween. Furthermore, an apparatus for automatically raising and lowering the toner hopper and an apparatus for maintaining the horizontality of the toner hopper when being elevated and lowered is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.