Image forming apparatus having a revolver type developing device
US5258819A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1993 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Feb 8, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus having an image carrier for electrostatically forming a latent image thereon, and a revolver type developing device located in close proximity to the image carrier and having a plurality of developing units each containing a powdery developer of particular color arranged around a rotary shaft, and rotating the developing device to selectively locate one of the developing units at a developing position where the developing unit faces the image carrier for developing the latent image. A guide member is mounted on a body of the apparatus and formed with an engaging portion for guiding the developing device toward and away from the image carrier in engagement with the rotary shaft. A movable member holds the developing device in such a manner as to allow it to be mounted and dismounted in the up-and-down direction and causes the device to move along the guide member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.