Patent ID: 8351827

Claim:
A powder supply device, comprising: a first storage section that stores powder; a second storage section that stores the powder; a first stirring section that is provided for stirring the powder stored in the first storage section and that is arranged inside the first storage section; a second stirring section that is provided for stirring the powder stored in the second storage section and that is arranged inside the second storage section; a drive section that produces a forward direction rotational force and a reverse direction rotational force to apply a drive force to the first and second stiring sections; a first transmission shaft that transmits the drive force to the first stirring section; a second transmission shaft that transmits the drive force to the second stirring section; and a transmission switching section that transmits the drive force produced by the forward direction rotational force of the drive section to the first transmission shaft, and that transmits the drive force produced by the reverse direction rotational force of the drive section to the first transmission shaft and the second transmission shaft.