An imaging cartridge installable in an image forming device. The image forming device includes a rotational driving member and at least one cartridge guide defining a guide path. The cartridge includes a first cartridge portion engageable with the at least one cartridge guide for movement along the guide path and a second cartridge portion coupled to the first cartridge portion. The second cartridge portion includes a drive receiving member configured for engagement with the rotational driving member and at least one of a drum unit assembly, a hopper, a developer roller, and a regulating blade. The second cartridge portion is moveable with respect to the first cartridge portion between a first position, in which the drive receiving member is not engageable with the rotational driving member, and a second position, in which the drive receiving member is engageable with the rotational driving member.