SATO M84PRO service manual EYE-MARK Sensor Adjustment

Section 8: Adjustment Procedures

EYE-MARK SENSOR ADJUSTMENT

This adjustment will require the use of a multimeter and the TP Test Module.

NOTE: Figure 10-5, Accessories & Sensors Location; Figure 10-6, Print Position Reference Diagram; and Figures 10-7 through 10-19, Print Operation Sequence in the Diagram & Schematics Section provide additional instruction.

1 Open/remove the top, right, and left housing covers.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance on housing cover removal.

2Turn the VR5 potentiometer fully counter-clockwise.

3Connect test module (1, Figure 8-9) to main circuit board connector (2).

NOTE: Refer to TP Test Module Usage in the Troubleshooting section for additional instruction on test module use.

4Turn dial (3) on test module (1) to position number 4.

5Connect the positive (+) probe of the multimeter to pin SIG (4) on test module (1).

6Connect the negative (-) probe of the multimeter to pin GND (5) on test module (1).

7Ensure the multimeter is set for DC voltage reading.

8Place a label without the eye-mark part in position to be read by the sensor.

9Adjust VR4 potentiometer so that the multimeter value is less than 0.5 volts.

10Replace the label without the eye-mark with one that has the eye-mark for sensor reading.

11Regard the millimeter for a value of +1.0 volts more than the prior value read.

12Repeat steps 8 through 11 until the value is +1.0 volts.

13Test print labels to ensure proper function.

14Disconnect test module (1) from main circuit board (2) and replace housing covers.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance on housing cover installation.

M84Pro Service Manual PN: 9001111A Page 8-13