October 2012
2-9
ColorQube 8570/8870 Service Manual
Testing Clutch, Motor, and Solenoid Resistance
Fault Messages and Codes
Xerox Internal Use Only - Revised, 3rd Revision
Testing Clutch, Motor, and Solenoid Resistance
1.
Turn off the printer and disconnect the power cord.
2.
With a Digital Multimeter (DMM) set for measuring resistance, test each motor’s windings
for correct resistance (disconnected from the printer). Rotate the motor’s drive shaft
slightly while taking the measurement.
Table 1 Clutch, Motor, and Solenoid Resistance
Clutch, Motor, and
Solenoid
Resistance (approximate)
Head Maintenance Clutch
186 ohms +/- 15%
Paper-Pick Clutch
Deskew Clutch
186 ohms +/- 15%
Process Drive Motor
Media Path Drive Motor
2.85~3.85 ohms (Difficult to measure due to variability at the
brush/commutator interface.)
Tray Lift Motor
50~500 ohms
X-Axis Motor
5.9 ohms/phase +/- 10% (pins 2 to 4 and pins 3 to 5)
Y-Axis Motor
1.05~1.43 ohms (Difficult to measure due to variability at the
brush/commutator interface.)
MPT Pick Solenoid
124 ohms +/- 5%
Ink Loader Solenoid
~10 ohms blue-red, ~10 ohms yellow-red, ~20 ohms blue-yellow
Preheater Lift Solenoid
~18 ohms blue-red, ~18 ohms yellow-red, ~36 ohms blue-yellow
Summary of Contents for COLORQUBE 8570
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