Ricoh D124-17 Service Manual page 424

4. Replacement and Adjustment
Reinstallation
The position of the ink level sensor bracket requires adjustment.
1. Attach the sensor bracket and align it with the marks you made on the bracket before removal, but
do not tighten the screw. The bracket should be loose so that it can move to the front and back (
x1).
2. Slowly, push the carriage unit [A] to the right until you see the actuator in the gap of the first sensor
[B].
3. Make sure that the actuator is centered in the gap.
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