FIELD: physics, photo.
SUBSTANCE: this invention relates to a development device, a development cartridge, a part transmitting a rotary force and an electrophotographic device of image generation, with which a development cartridge is used. A group of inventions is proposed, including an electrophotographic device of image generation, designed to generate an image on a recording material, a development device used with an electrophotographic device of image generation and a part transmitting a rotary force used with a development cartridge, where the specified development cartridge is made as capable of installation into the main assembly of the electrophotographic device of image generation, including a driving shaft. The proposed development device used with the electrophotographic device of image generation includes a driving shaft, rotated by an electric motor and having a part applying rotary force, and a movable element, besides, the development device is made as capable of installation onto the movable element and with the possibility of displacement in the direction substantially perpendicular to the axial direction of the driving shaft, in response to movement of the movable element in one direction with the development device installed onto the movable element, at the same time the driving shaft may not move in the direction substantially perpendicular to its axial direction. At the same time the part transmitting rotary force comprises: a groove provided on one longitudinal end of the specified part transmitting rotary force and made as capable of engagement with a driving shaft, when the specified development cartridge is installed into the main assembly of the device; a spherical part provided on the other longitudinal end of the specified part transmitting rotary force; multiple ledges, between which there is the centre of the specified groove, protruding from the specified spherical part in the longitudinal direction of the specified part transmitting rotary force, for perceiving the rotary force from the driving shaft, which is provided in the main assembly of the device, so that the development cartridge does not move in the direction substantially perpendicular to the axial direction of the specified driving shaft, in the condition, in which the development cartridge is installed into the main assembly of the device; the first protruding part that protrudes from the specified spherical part from the specified one longitudinal end, besides, the specified first protruding part is made as capable of displacement between the specified resolving part for resolution of substantially of full rotation of the specified part transmitting rotary force and the specified controlling part for regulation of angular position of inclination of the specified part transmitting the rotary force in the condition, in which the part transmitting the rotary part is installed into the development cartridge; and multiple second protruding parts, which are specified between the specified ledges and the specified first protruding part, and between which there is the specified spherical part, besides, the specified second protruding parts protrude outside from the spherical part, and the specified second protruding parts function for transfer of rotary force, perceived from the driving shaft by ledges, to a development roller.
EFFECT: design of a development device, a development cartridge and an electrophotographic device of image generation, used with a development device or a development cartridge, which are improved to prevent unevenness of rotation of a development roller and to provide a mechanism in the main assembly for displacement of a connection element of the main assembly to a connection element of the development device.
5 cl, 31 dwg
