| 摘要 |
A pair of engagement members to be detachably engaged with a bill recognition device is provided on a unit body of a reader-writer unit, and the bill recognition device is attached to the unit body by engagement with the engagement members. Therefore, the bill recognition device can be attached/detached without using any screws. For example, when the bill recognition device is replaced, operations for detaching and attaching the bill recognition device can be performed advantageously easily. In the replacement process, the bill recognition device can be attached or detached while the unit body is in the state of being mounted on an outer door. Thus, the drawback of the unit body being dismounted from the outer door when the screws are removed as in the conventional art is eliminated and the attachment/detachment operations are not complicated.
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