Patent ID: 8918030

Claim:
A powder supplying device comprising: a powder container frame; and a powder container, detachably installable in the powder container frame horizontally, including a discharge port through which powder is discharged from the powder container; and a shutter member attached to the powder container, to open and close the discharge port by moving along the powder container in a direction in which the powder container is installed; the powder container frame including two shutter control members movably attached to the powder container frame, the shutter control members opening and closing the shutter member by moving together with the powder container as the powder container is being inserted into and pulled out from the powder container frame, and sandwiching the shutter member from both sides, in a state in which the powder container is installed in the powder container frame and the shutter member is opened, wherein the shutter control members are rotatable and opens and closes the shutter member by rotating together with the powder container as the powder container is inserted into and pulled out from the powder container frame.