TONER CARTRIDGE, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a toner cartridge that can effectively prevent an unused toner from flowing back from an unused toner storage part to a waste toner storage part by positively controlling the amount of waste toner movement from the waste toner storage part to the unused toner storage part.

SOLUTION: The toner cartridge 1 includes the unused toner storage part 5 and waste toner storage part 6 which are arranged adjacently to each other. Further, the toner cartridge is provided with a waste toner conveyance path 3 which is arranged connecting the unused toner storage part 5 and waste toner storage part 6 and has opening parts 13 and 14 on the sides of the waste toner storage part 6 and unused toner storage part 5 respectively and a waste toner conveying device 15 which is arranged in the waste toner conveyance path 3 and can convey a waste toner from the waste toner storage part 6 to the unused toner storage part 5. The opening part 14 on the side of the unused toner storage part 5 is closed with a closing member 18 which is opened as the internal pressure of the waste toner in the waste toner conveyance path 3 rises.

COPYRIGHT: (C)2004,JPO