| 摘要 |
PURPOSE:To substitute a wire with a clean wire by an easy operation, by providing a conductive member which is connected to one of plural wires stretched in a casing and a switching member which switches the connected wire to another. CONSTITUTION:If a wire 36a connected electrically to a power supply part is polluted by repeated application of a high voltage, a power supply connector 38 is detached from a connector 35, and a link 28 provided on the side wall of a casing 17a is turned. By this turning, arms 27a and 27b are turned through wires 29 and 29 and switching levers 30 and 31 stuck to shafts of arms 27a and 27b are turned also as one body. Consequently, a fresh wire 36b is moved to the center of the casing 17a, and a conductive plate 31c of the switching lever 31 is disconnected from the polluted wire 36a and is brought into contact with the fresh wire 36b. Thereafter, the power supply connector 38 is inserted to the connector 35, and the power source is turned on to start copying again. Thus, the wire is substituted with the clean wire by the easy operation.
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