Ricoh D124-17 Service Manual page 366

4. Replacement and Adjustment
2. Lift the right end [A] of the rail off its screw, and then pull the left [B] away from its screw to
disconnect both ends.
3. Pull the rail to the left, through the back of the carriage unit.
4. Pull the rail out of the machine.
• The horizontal encoder [A] stretches from the left side to the right side of the machine.
• At [B], the top edge of the encoder strip passes through the gap of the horizontal encoder
sensor on the back of the carriage unit.
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