Powder conveyance device, image forming apparatus & process cartridge

摘要

A powder conveyance device (40Y) includes a powder conveyance pipe (43Y) having a first conveyance section communicating with the powder container section and having a supply inlet to receive powder from a powder container. A second conveyance section is provided in the powder conveyance pipe (43Y) to communicate downstream with the first conveyance section via a first bending section. The second conveyance section downwardly extends to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section. A third conveyance section is also provided in the powder conveyance pipe (43Y) to communicate downstream with the second conveyance section via a second bending section. The third conveyance section extends toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section. The third conveyance section has a replenishment outlet for replenishing the powder from the powder conveyance pipe (43Y) to the powder conveyance destination. A space restriction member is provided and is at least arranged in the second conveyance section and partially closes an inner space of the second conveyance section.