Powder supply apparatus

A powder supply apparatus comprising:

• a storage member including a storage chamber configured to store powder;
• a discharging member disposed below the storage member and including a discharge port to discharge the powder;
• a feeding member disposed below the storage member and above the discharging member, configured to feed powder in the storage chamber to the discharge port, and including a plurality of feeding chambers inside the feeding member such that the plurality of feeding chambers are stacked in an up-down direction, the plurality of feeding chambers having capacities different from one another;
• an inlet shutter configured to open and close an inlet opening for feeding the powder in the storage chamber to the feeding member;
• an outlet shutter configured to open and close an outlet opening for feeding powder in the feeding member to the discharge port;
• and
• an intermediate shutter configured to open and close an intermediate opening that makes one feeding chamber and another feeding chamber communicate with each other, the one feeding chamber and the other feeding chamber being included in the plurality of feeding chambers and being adjacent to each other.