Image forming apparatus and process cartridge

摘要

An electrophotographic image forming apparatus to which a process cartridge and a developer cartridge for supplying a developer to the process cartridge independently from each other, includes i) the process cartridge including, an electrophotographic photosensitive drum; a developing roller for developing a latent image formed on the drum; a first developer accommodating portion for accommodating a developer to be used by the developing roller; a developer receiving port for receiving the developer from the developer cartridge into the first developer accommodating portion when the process cartridge is mounted to the apparatus, wherein the developer receiving port faces upwardly when the process cartridge is mounted to the apparatus; a cleaning member for removing the developer from the drum; a first removed developer accommodating portion for accommodating the developer removed from the drum by the cleaning member; a second removed developer accommodating portion for accommodating the developer fed from the first portion, the second portion being disposed above the first portion when the cartridge is mounted to the apparatus, wherein the second portion is projected upwardly beyond the developer receiving port with respect to a vertical direction when the cartridge is mounted to the apparatus; and developer feeding means for feeding the developer from the first portion to the second portion; and ii) the developer cartridge including, a second developer accommodating portion for accommodating the developer to be supplied to the cartridge; a developer supply port for supplying the developer to the first developer accommodating portion through the developer receiving port, the developer supply port facing downwardly when the developer cartridge is mounted to the apparatus, iii) wherein when the process cartridge and the developer cartridge are mounted to each other, the developer cartridge is disposed above the first developer accommodating portion and at a side of the second removed developer accommodating portion.