| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to stay developer at a rib even if an AIO is pulled out in an oblique or standing state. SOLUTION: In the developing device in which a developer storing case 7 whose developer supply port is sealed with a heat seal 9 and which stores the developer is docked in the center axis direction of a stirring member 5, the rib 10' of the receiving port of a developing unit at the time of supplying the developer to a developing unit is arranged at an acute angle position to the pull-out direction of the heat seal 9 and the center axis line of the stirring member 5 by pulling out the heat seal 9 of the developer storing case 7, and the end part of the rib 10' of the developing unit 16 on the side of the developer storing case 7 is set at the same position as the end part of the rib 10 of the developer supply port of the developer storing case 7 on the side of the developing unit. |
