| 摘要 |
PURPOSE:To utilize the space and to reduce the frequency of waste toner changing by providing an expansible waste toner recovery container in a toner storage part and coupling the waste toner recovery container with a cleaning device. CONSTITUTION:In the beginning state of fresh toner supply, a developing device 17 stores toner T in the toner storage part 171 almost to fullness, the waste toner recovery container 172 is folded and installed detachably in the toner storage part 171, and the recovery container 172 and cleaning device 21 are coupled with each other by a waste toner recovery auger 173. When the device begins to be used and the recovery container 172 is almost full of waste toner, the recovery container 172 expands and filled with waste toner recovered by the cleaning device 21 through the recovery auger 173. When fresh toner is supplied, the integrally formed part of a photosensitive drum 13, the developing device 17, the cleaning device 21, an electrostatic charging device 23, etc., is drawn out to replace the recovery container 172 and also supply the fresh toner to the toner storage part 171. |
