Minolta CF910 Service Manual page 400

5. C0030 (M16's Failure to Turn)
C0031 (C16 Turning at Abnormal Timing)
• Developing Drive Motor M16
Step
1 Is the malfunction code C0030 shown?
2 Does M16 turn when the Start key is
pressed?
3 Does the voltage across PJ2I-3A on
PWB-I and GND change from DC5V to
DC0V when the Start key is pressed?
4 Does the voltage across PJ2I-4A on
PWB-I and GND remain DC5V when the
Start key is pressed?
5 Does the voltage across PJ2I-3A on
PWB-I and GND remain DC0V when the
Start key is pressed?
6 Does the voltage across PJ2I-4A on
PWB-I and GND remain DC0V when the
Start key is pressed?
Possible Defective Components
Check Item
T-34
• Master Board PWB-I
1154C10TAA
Result
NO Go to step 5.
YES Check rollers, gears, etc. for
overload.
NO Change PWB-I.
YES Change M16.
NO Change PWB-I.
NO Change PWB-I.
YES Change M16.
NO Change PWB-I.
Action