DEVELOPER STORING UNIT, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMATION DEVICE

摘要

A developer storing unit for storing a developer used in image formation, the developer storing unit being provided with: a flexible container having an opening (35a) for discharging the developer; a frame for storing the flexible container and for storing the developer discharged from the flexible container; and a pressing member (21) for pressing a developer storing bag (16) to the frame storing the developer storing bag. As a consequence, it is possible to efficiently discharge the developer from the flexible developer storing bag (16).