A powder storage device that stores powder to be supplied or recovered powder, includes: a storage container that is extractably mounted on a container receiver, and in which powder to be supplied or recovered powder is stored; an opening/closing door that opens and closes the container receiver; and an opening/closing restricting mechanism that restricts a closing operation of the opening/closing door, and the opening/closing restricting mechanism includes: a restricting member as defined herein; and a restricted member as defined herein.