| 摘要 |
A sheet feeding device includes: a conveying member of a conveying unit which conveys a sheet; and a cleaning member which is in sliding contact with a circumferential surface of the conveying member to clean the circumferential surface. The conveying member and the cleaning member rotate in the same tangential direction at a sliding contact position thereof, and drives of the conveyance member and the cleaning member are controlled so that the following expression is satisfied: V1>V2 where V1 represents a line speed of the circumferential surface of the conveying member during a rotation thereof, and V2 represents a line speed of a sliding contact portion of the cleaning member during a rotation thereof.
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