Powder supply device

A powder supply device which ejects a powder stored in a tank from a predetermined ejection port to supply the powder, the powder supply device comprising:

• a powder fluidizing unit which blows air into the powder in the tank to fluidize the powder;
• a powder supply path forming member which forms a powder supply path in which one end is the ejection port and the other end is an inflow port connected to the tank, wherein the powder in the tank which is fluidized by the powder fluidizing unit flows into the inflow port so as to be ejected from the ejection port through the powder supply path;
• an air blower which blows air toward the powder that is about to flow into the inflow port;
• and
• a hardware processor, wherein
• the hardware processor is capable of executing supply flow rate control of controlling a powder ejection amount from the ejection port according to an air blowing amount by the air blower by controlling the air blowing amount, and the air blowing amount by the air blower is increased to reduce or stop a powder ejection.