FIELD: electrostatographic printing; electrophotography; magnetography.
SUBSTANCE: invention relates to the used in the electrophotographic images forming device development device and used in the electrophotographic images forming device coupling element. Claimed group of inventions include used in the electrophotographic images forming device development device, used with the electrophotographic images forming device development cartridge, electrophotographic images forming device for the image on the recording material formation, and used with the electrophotographic images forming device coupling element. At that, the coupling element is configured to transmit the rotational force from the drive shaft in the developing roller, which is movable in the direction substantially perpendicular to the drive shaft axial direction, the coupling element comprises: rotation force reception part engaged with the rotation force application part to receive the rotation force from the drive shaft and rotation force transmission part for the rotation force transmission received through the rotation force reception part on the developing roller, the coupling element is configured to receive the angular position of the rotational force transmission to the developing roller for the rotation force transmission for the developing roller rotation through the rotation force transmission part, angular position before engagement, in which the coupling element is deflected from the rotation force transmission angular position, and the disengagement angular position, in which the coupling element is deflected from the rotation force transmission angular position in direction opposite to the angular position before engagement.
EFFECT: technical result is provision of the coupling movement mechanism from the developing device side to ensure of the developing roller uniform rotation.
34 cl, 78 dwg
