| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner cartridge which can reduce toner staying between a toner stirring member and the inner wall of a toner cartridge, and to provide an image forming apparatus using the toner cartridge, and to provide a toner supply method.SOLUTION: The toner cartridge 22 includes: a toner storage container 121 storing toner; a toner discharging port 123 for discharging toner in the toner storage container 121 to outside; and a toner conveyance screw 122 for conveying toner in the toner storage container 121 toward the toner discharge port 123 by rotating. In the toner cartridge, the toner conveyance screw 122 has thereinside a first ventilation passage 122b1 from one end side to the other end side along the axis line of rotation. Communication ports 122b3 for communication between the first ventilation passage 122b1 and the outside are formed at a plurality of position in the outer peripheral surface of the toner conveyance screw 122. |
