[D] 3. Put the positioning pins in the front and rear holes [B] of the first scanner. Make sure that the positioning pin can be set in the holes smoothly. 4. If the pins did not fit smoothly, adjust the position of the first scanner with the screws [C]. 5. Check and adjust the position of the second scanner using the same procedure as in steps 3 and 4. 6. Slide the scanner unit and remove the sensor cover [D] (2 screws). 7. Connect the probes of the multimeter to the sensor�s connector. CN1: +5V CN2: GND CN3: Scanner H.P (Signal) 8. Slide the sensor bracket [E] and tighten the bracket when the sensor output goes to low (5 V to 0 V). 9. Check the optics adjustments and adjust them if necessary (see section 3).