Master End Sensor Adjustment - Ricoh PD-D1 Field Service Manual

• When the voltage cannot be adjusted to the standard value, adjust the threshold level of the 2nd
drum master sensor. (SP6-53: 2nd drum master sensor voltage)
Standard Value
Master present
2.2V+-0.1V

Master End Sensor Adjustment

Ensures that the sensor detects the end mark (a solid black area) on the master roll.
Standard: 1.8 volts (within "+0.1" and "-0.1" volts)
Tools: Circuit tester, the core of a used master roll (the core has no master)
• Rear cover ( p.74 "Rear Cover")
1. Connect the terminals of a circuit tester to TP101 and to a grounded place (e.g. iron base).
2. Put a piece of master [A] on the used master roll.
3. Place the core of the used master roll inside the master-making unit, and close the master-making
unit.
• Insert the core so that the piece of master [A] faces towards the master end sensor.
4. Connect the power plug, and turn on the main switch.
Threshold level (SP6-53)
1.0V
Master Feed
Standard Value
Master not present
Below 0.8V
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