| 摘要 |
PURPOSE:To simplify the structure of a device and to reduce the cost thereof by providing a partition wall having flexibility which can switch the ratio of the volume of a replenishing developer storage part and a collected developer storage part and storing collected developer in the collected developer storage part through an aperture for collecting. CONSTITUTION:The partition wall 12 is provided to be stretched along a longitudinal direction in the inside of a housing 11 and formed as a film material which freely elongates and contracts and which has the flexibility by using a soft polyethylene film or the like, for example. According as developer for replenishment 7a in the replenishing developer storage part 13 in a cartridge 10 is discharged in a developing part 3 from an aperture for replenishing and consumed, the wall 12 is moved to the storage part 13 side and the ratio of the volume in the collected developer storage part 14 in the cartridge 10 is increased. Therefore, collected developer 7b discharged from the storage part 13 side and left without being used can be successively collected in the storage part 14. Thus, the structure of the device is simplified and the cost thereof is reduced. |
