FIELD: image forming devices.
SUBSTANCE: present invention relates to an image forming apparatus, to a cartridge, with possibility of disconnection of image forming device installed on main body, and to elements making cartridge. Disclosed cartridge, which can be mounted in an image forming device into a main unit of a device, comprises: a developing roller, a supporting developer roll support frame, first movable part and second movable part supported by the frame with the possibility of independent movement to the first position and to the second position relative to the frame, and a first spring provided between the frame and the first movable portion to compress the first movable portion, and a second spring provided between the frame and the second movable portion to compress the second movable portion, drive input member for receiving input of rotating force for rotation of developing roller, wherein the first and second movable parts each include a force-receiving portion in the direction of movement from the first position to the second position, and when the first and second movable parts receive force in the force receiving part are in the second position, the first and second movable parts receive a pressing force from the first and second springs in the movement direction of the first and second moving parts from the second position to the first position, wherein first movable part is supported on frame side, on which drive input element is located, and the second movable part is supported on the frame side, on which the driving input element is not located, relative to the direction of the rotation axis of the developing roller, and the clamping force of the first spring is less than the clamping force of the second spring.
EFFECT: technical result is to ensure an accurate movement of the developer bearing member.
12 cl, 57 dwg
