Detachably mountable process cartridge with a rotational force driving assembly

A process cartridge detachably mountable to an electrophotographic image forming device, comprising:

• a housing,
• a coupling component provided at one end of the housing for receiving rotational driving force from a driving head inside the electrophotographic image forming device, and
• a limiting protrusion provided at the other end of the housing,
• wherein the limiting protrusion abuts a lateral wall in the electrophotographic image forming device when the process cartridge is installed into the electrophotographic image forming device, and
• a guiding surface is provided at the limiting protrusion, the guiding surface abuts the lateral wall in the electrophotographic image forming device, and a rotational axis of the coupling component inclines with respect to a rotational axis of the driving head when the process cartridge is detached from the electrophotographic image forming device,
• wherein the direction for installing the process cartridge into the electrophotographic image forming device inclines with respect to a direction for detaching the process cartridge from the electrophotographic image forming device.