| 摘要 |
PROBLEM TO BE SOLVED: To prevent disturbance of rotating speed of an already rotating developer starting to rotate a developer to be rotated later at the time of rotating the a plural number of the developers to be rotated with time differences. SOLUTION: A torque transmission device 205 is furnished with an input pulley 102 and an input shaft 103, a plural number of torque transmission mechanisms 116m, 116c, 116y, 116Bk to separately transmit torque of the input pulley 102 and the input shaft 103 to a plural number of the M developer 4m, the C developer 4c, the Y developer 4y, the Bk developer 4Bk, clutches 110m, 110c, 110y, 110Bk capable of interrupting transmission of the torque to the M developer 4m, the C developer 4c, the Y developer 4y, the Bk developer 4Bk from the input pulley 102 and the input shaft 103 as well as provided in each of the torque transmission mechanisms and one-way clutches 202a, 202b to transmit only unidirectional rotation of the input pulley 102 and the input shaft 103 between the input pulley 102, the input shaft 103 and the torque transmission mechanisms. |
