Patent ID: 9442421
Filing Date: 2016-09-13
CPC Classification: G03G

Claim Text:
1. A powder storage device comprising: a powder container that has an opening at one end, stores powder therein, and has, on an inner peripheral surface, a rib configured to transport the powder toward the opening with rotation of the powder container; a lid member that is configured to cover the opening, has an outflow opening through which the powder flows, and is held in a non-rotatable state; and a driving-force transmission member interposed between the powder container and the lid member and having a driving-force receiving portion penetrating the lid member in a rotation axis direction, the driving-force transmission member transmitting a rotating force to the powder container, wherein the lid member engages over a portion of an outer surface of the driving-force transmission member, which engages over a portion of an outer surface of the powder container.