| 摘要 |
PROBLEM TO BE SOLVED: To provide a simply constituted toner carrying device capable of always stably carrying toner. SOLUTION: The toner carrying device 73 is provided with a rotary member 82 which is rotated while being connected to a driving gear 81 at the upstream end part in the toner carrying direction of a carrying groove 79, and one end part of a spiral coil member 87 is fitted to the rotary member 82 from the outside and locked, and a bar member 88 is freely placed in contact with the lower inner peripheral surface of the spiral coil member 87, a cylindrical part 83 is successively provided at the downstream end part of the carrying groove 79, and a toner discharge port 84 is formed in the cylindrical part 83 so as to face downwards, and a cap type shutter member 85 is fitted on the port 84. The rotary member 82 is columnar and not provided with a conical inclined surface, and the leading end of the member 82 is formed so as to be planar and orthogonal to the axis. As for the spiral coil member 87, a spiral pitch near the engagement part with the rotary member 82 is formed smaller than the spiral pitch of other parts, and even in the case an external impact is applied, the bar member 99 is prevented from jumping out of the spiral coil member 87. |
