Patent ID: 9069292
Filing Date: 2015-06-30
Classification: G03G

Abstract:
1. A developer storage device, comprising: a rotation member including a main body thereof and a shaft portion which protrudes from an end portion of the main body; a support member formed with a hole by which the shaft portion is supported; a first seal member disposed between the main body of the rotation member and the support member and including a hole into which the shaft portion is inserted; and a second seal member disposed between the first seal member and the main body of the rotation member and including a hole into which the shaft portion is inserted, wherein the support member includes a step portion including: a first restraint section configured to restrain motion of the first seal member in an axial direction of the shaft portion; and a second restraint section configured to restrain motion of the outer periphery of the first seal member in a radial direction of the shaft portion.