STATOR, STATOR MOLDING INJECTION DIE, POWDER MATERIAL TRANSFER PUMP COMPRISING THEM, TONER SUPPLY DEVICE, REUSED TONER CLASSIFYING DEVICE, AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To form a high quality image by providing a stator used for a powder material transfer pump with a cavity portion penetrating from one end to the other end in a female-screw-shaped body, a spiral groove provided on the outer peripheral surface of the cavity portion, and a rotation stopping shaped portion provided for the surface of one end or the other end of the body. SOLUTION: This stator 0 incorporated into a powder material transfer pump 30 has a cavity portion 2 axially penetrating from one end to the other end in a female-screw-shaped body 1 made of thermoplastic elastomer material, and a spiral groove 3 is formed on the outer peripheral surface (inner wall) of the cavity portion 2. A collar shaped portion provided on the end surface of the body 1 having the spiral groove 3 is provided with a rotation stopping shaped portion 4 due to a D-shaped cutting surface. Such powder material transfer pump 30, for transferring a powder material such as toner T of a developer as a mixture with air, is provided with a rotor 32 rotatably inserted and engaged with the spiral groove 3 of the stator 0 and a driving conveying means 33 for rotating the rotor 32 to convey the toner T.