Master End Sensor Adjustment - Ricoh PT3 Field Service Manual

4. Replacement and Adjustment
4. Press the # key. Power is continuously supplied to the thermal head, which could damage the thermal
head, so press the clear/stop key if you cannot finish the adjustment quickly.
A beeper sounds while the power is being supplied.
5. Measure the voltage, and turn RV1 on the PSU until the value is between "+0" and "-0.1" volts from
the value on the thermal head decal.

Master End Sensor Adjustment

Purpose
4
Standard
Tools
• Rear cover (
1. Place the core inside the master making unit, and close the master making unit.
2. Connect the power plug, and turn on the main switch.
3. Access SP6-50.
80
To ensure that the sensor detects the end mark (a solid black area) on the master
roll.
2.0 ± 0.1 volts
The core of a used master roll (the core just before a master end display appears)
p.59)