| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to exactly clean an electrifying roller by subjecting a reciprocatively moving body to reciprocative motion by a driving force given by a rotating driving member using a cam member. SOLUTION: A driving member 94 is attached to a terminal part of a vessel 14 in order to drive a cleaning device TC for a electrifying roller. The driving member 94 is engaged on a driving member of a device main body when a drum cartridge is inserted in the device main body, and derived by the driving force from the main body. A cam surface 95 is formed together with the driving member 94 in the united form and a lever member 92 is brought into contact with the cam surface 95. As the lever member 92 is energized by a spring member 93, the lever member 92 is allowed to move along the cam surface 95 by the rotation of the driving member 94, thereby the cleaning device TC for the electrifying roller reciprocates along the axial direction. By this constitution, the roller cleaning member 90 moves continually on the electrifying roller 17, thereby preventing the coagulation of sticking materials on the electrifying roller 17.
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