Developing device having restricted movement, process cartridge and image forming apparatus

A developing device comprising:

• a developing member configured to develop an image on an image bearing member with a developer;
• a supplying member configured to supply the developer to said developing member;
• and
• a frame forming a developer supplying chamber in which said supplying member is contained and a developing chamber in which said developing member is contained;
• wherein said frame is provided with a recessed portion formed by denting a wall portion of said frame from outside, and
• a part of said frame defining said recessed portion is configured to be abutable by a restricting member when said developing device moves in a direction away from the image bearing member.