A process cartridge comprising: a frame body made up of at least first and second frame bodies (2a, 2b) that are movable relative to each other to form a space; a frame body positioning member positioning the first and second frame bodies (2a, 2b); a latent image bearing member, supported by the frame body, and replaceable via the space formed by the first and second frame bodies (2a, 2b); a charging unit uniformly charging the latent image beering member; a developing unit supplying a developing agent to the latent image bearing member; a developing position determining member (71, 72), wherein the developing position determining member (71, 72) and the frame body positioning member do not overlap on the frame body; a cleaning unit cleaning residual toner on the latent image bearing member; and a cleaning position determining member positioning the cleaning unit with respect to the frame body, said cleaning unit being replaceable via the space formed by the first and second frame bodies (2a, 2b), wherein said cleaning unit comprises a cleaning blade removing residual toner on at least the latent image bearing member, a bias roller controlling an amount of charge of the residual toner, and a roller configured to supply a lubricant on the surface of the latent image bearing member; said cleaning position determining member comprises a blade positioning member positioning the cleaning blade with respect to the frame body, the bias roller and the roller, characterized in that said cleaning blade, said bias roller and said roller are independently replaceable via the space formed by the first and second frame bodies (2a, 2b). a frame body made up of at least first and second frame bodies (2a, 2b) that are movable relative to each other to form a space; a frame body positioning member positioning the first and second frame bodies (2a, 2b); a latent image bearing member, supported by the frame body, and replaceable via the space formed by the first and second frame bodies (2a, 2b); a charging unit uniformly charging the latent image beering member; a developing unit supplying a developing agent to the latent image bearing member; a developing position determining member (71, 72), wherein the developing position determining member (71, 72) and the frame body positioning member do not overlap on the frame body; a cleaning unit cleaning residual toner on the latent image bearing member; and a cleaning position determining member positioning the cleaning unit with respect to the frame body, said cleaning unit being replaceable via the space formed by the first and second frame bodies (2a, 2b), wherein said cleaning unit comprises a cleaning blade removing residual toner on at least the latent image bearing member, a bias roller controlling an amount of charge of the residual toner, and a roller configured to supply a lubricant on the surface of the latent image bearing member; said cleaning position determining member comprises a blade positioning member positioning the cleaning blade with respect to the frame body, the bias roller and the roller, characterized in that said cleaning blade, said bias roller and said roller are independently replaceable via the space formed by the first and second frame bodies (2a, 2b).