| 摘要 |
PURPOSE:To stably arrange an image carrier at a specified position and to easily attach and detach it by providing a means for regulating the displacement of the image carrier in a pressing direction from a transfer roller side and in an image carrier moving direction by thrust generated when the image carrier is actuated. CONSTITUTION:The means for regulating the displacement of the image carrier 4 is formed in the pressing direction from the transfer roller 5 side and in the image carrier 4 moving direction by the thrust generated when the image carrier 4 is actuated. Namely, the shaft 4a of the image carrier 4 and the shaft 5a of the transfer roller 5 are fitted with play in the upper recessed part and the lower recessed part of a supporting member 9, respectively, and then, the transfer roller 5 is allowed to press- contact to the image carrier 4 by a spring 91. The thrust acts on the shaft 4a by the rotational force of the image carrier 4 and the frictional force of the shaft 4a with the upper side 9b of the recessed part, and the shaft 4a is actuated in a state where it abuts on two sides 9b and 9c, then the transfer roller 5 is also actuated in a state where it is restricted by the above actuation and press-contacts to the image carrier 4. Thus, the image carrier 4 is surely positioned and arranged at the specified position and easily attached and detached. |
