| 摘要 |
PROBLEM TO BE SOLVED: To prevent recovered waste toner from being displaced to the vicinity of an opening part of a cleaning device at mounting and demounting time of a cartridge by arranging a pressure wall so as to surround a part of a carrying screw to carry waste toner. SOLUTION: Toner accumulated in a cleaning chamber 43 by being scraped away by a cleaning blade 16 is carried by a carrying screw 45, and enters a storage chamber 44 from a part of a notch 46. In this case, since a pressure wall 42 is arranged so as to surround the screw 45, power pressure of this part increases, and the toner carried by the carrying screw reliably enters the storage chamber 44. When a drum cartridge is used, even if this is extracted from a device main body according to some necessity, the toner housed in the storage chamber 44 does not splash on a part where the cleaning blade exists, and when it is reinstalled, a situation such as impairing a cleaning function can be reliably prevented. |
