| 摘要 |
A cleaning device cleans a charging roller for charging the outer circumferential surface of a photoconductive drum while being rotated in contact with the photoconductive drum, and is provided with a cleaning brush for cleaning the outer circumferential surface of the charging roller by brushing while being rotated in contact with the outer circumferential surface of the charging roller, a rotational driving mechanism for rotating the cleaning brush while making the circumferential speed thereof differ from that of the charging roller, and a thrust driving mechanism for reciprocating the cleaning brush along a direction of a rotary axis of the charging roller while holding the cleaning brush in sliding contact with the outer circumferential surface of the charging roller.
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