| 摘要 |
PROBLEM TO BE SOLVED: To provide an attaching structure for an inverter circuit board for a light source lamp of an image reader, which simplifies the replacement of an inverter circuit by making it possible to operate an attaching means for attaching the inverter circuit board to a carriage from the moving direction of the carriage. SOLUTION: A radiation board 12 is freely attachably and detachably fitted to a front wall 8a of a frame 8 of a full rate carriage 3, on which a light source lamp 5 is loaded, by a fixing screw 13. An inverter circuit board 11, on which an inverter circuit 10 is loaded, is attached to the radiation board 12. When replacing the inverter circuit 10, by unfastening the fixing screw 13, the inverter circuit board 11 and the inverter circuit 10 are detached together with the radiation board 12, so that the inverter circuit can be replaced. A volume 16 for controlling the light quantity control of the light source lamp 5 is attached to the inverter circuit board 11, so that an operating part 16a thereof can be operated from the moving direction of the carriage 3.
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