TONER TRANSFER DEVICE OF IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To enhance margin for clogging with a toner during toner recycling, in a transfer device for a recycled toner used in an image forming device that uses a powder pump called a Mono pump. SOLUTION: A shutter mechanism 70 with a rotatably supported cam plate 701 is provided at the connection of a conveying system for a new toner. A recycled toner transfer pipe 380 for connection to the connection of the toner conveying system is flexible and excellent in resistance to the toner. While air is being supplied to a recycled toner conveying system, the cam plate 701 is rotated to crush the recycled toner transfer pipe 380 to prevent the recycled toner from flowing back.