DEVELOPER HOUSING UNIT, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE

摘要

A developer bag (16) having an opening section (35a) sealed by a sealing member (19) has a multilayer configuration section (16g) wherein sheets (16u) or sheets (16s) forming a developer housing section are overlapped. A first fixed section (16d) fixed to a fixed section (18c) in a frame body (18) is disposed in the multilayer configuration section (16g) and an interlayer bonding section (16h) that bonds between the overlapped sheets is disposed between the first fixed section (16d) of the multilayer configuration section (16g) and the developer housing section. As a result, the opening characteristics of the sealing member that seals the opening section of a flexible container for housing the developer can be improved.