| 摘要 |
PROBLEM TO BE SOLVED: To surely discharge developer at the time of discharging it by forming a groove so as to make the side of a plug bottom narrow in the periphery of the cylindrical container closing part of a common plug. SOLUTION: A closing plug 40 provided at the inner peripheral space of the supply supporting blade and the recovery supporting blade of an intermediate connecting member 27 firstly closes the respective end part apertures of a first powder container 11 and a second powder container 12, so that the leakage of the developer and toner is prevented and only a specified amount is drawn out by a chucking device so as to open each aperture at the time of supplying and recovering. The groove to make the side of the plug bottom narrow is provided on a root side and on a plug cylinder at the closing plug 40. Grooving is made so as to make the groove deeper than the height of a protrusion 13 provided at the second powder container 12, so that a fall-off preventive effect at the time of fitting-in is enhanced. Also, the developer discharged from the first powder container 11 is supplied to a rotating space 25 without entering the second powder container 12 by providing the groove, so that the developer is more quickly supplied. |
