| 摘要 |
PURPOSE:To always hold a member, etc. in a clean state by providing a member which is brought to opposed movement relatively and cleans in response to the rotation of a rotation supporting body with respect to an object member to be cleaned on one of the rotation supporting body side and an immovable member side. CONSTITUTION:A first brush 20 is provided on a position corresponding to a moving locus of each ATR sensor 45 (Y.C.M.B) in response to the rotation of a rotation supporting body 42, and a second brush 21 is provided on a passing position in accordance with an ATR control unit 46. Accordingly, whenever the rotation supporting body 42 makes one rotation, each ATR sensor 45 (Y.C.M.B) passes through the position of the first brush 20 successively once each and brought to rubbing with the brush 20, and cleaned automatically. Also, with regard to the ATR controller 46, as well, whenever the rotation supporting body 42 makes one rotation, the second brush 21 passes through the position of the unit 46 once, and the surface of the unit 46 is brought to rubbing with the brush and cleaned automatically. |
