Signal cables to be connected to the head pass through a guide hole (center).

Cables passing through the guide hole. Tapes of different colors were used so that cables can be distinguished from one another. The round hole (lower) is an axis that moves the head up and down.

A part that functions as a guide is being attached to determine a position at the time of moving the head up and down.

A guide part is also attached to the opposite side.

The guides on both of the sides are being fixed with screws.

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Original Japanese article