Ricoh Pro C901 Technical Bulletin page 41

Model:
Aries-P1.5/C1.5
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
474 D ITB position error 1
The belt centering sensor detects an ITB position error.
1. Reinstall the ITB in the opposite direction or replace it.
2. Execute "Clearing SC471/475/476". (
3. Replace the ITB motor rotation sensor defective.
4. Replace the belt centering roller sensor.
5. Replace the belt centering roller motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
475 A ITB position error 2
The belt overrun front sensor detects an ITB position error.
1. Replace the belt overrun sensor: front.
2. Reinstall the ITB in the opposite direction or replace it.
3. Execute "Clearing SC471/475/476". ( "Clearing SC 471, 475
4. Replace the ITB motor rotation sensor defective.
5. Replace the belt centering roller sensor.
6. Replace the belt centering roller motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
476 A ITB position error 3
The belt overrun rear sensor detects an ITB position error.
T
echnical
ITB abnormal
Belt centering roller out of home position
ITB motor rotation sensor defective
Belt centering roller sensor defective
Belt centering roller motor defective
or 476" under "Troubleshooting" chapter in the Field Service
Manual.)
Belt overrun sensor: front defective
ITB abnormal or worn
Belt centering roller out of home position
ITB motor rotation sensor defective
Belt centering roller sensor defective
Belt centering roller motor defective
or 476" under "Troubleshooting" chapter in the Field Service
Manual.)
Belt overrun sensor: rear defective
ITB abnormal or worn
Belt centering roller out of home position
ITB motor rotation sensor defective
Belt centering roller sensor defective
Belt centering roller motor defective
B
ulletin
Date:
17-Feb-11
"Clearing SC 471, 475
PAGE: 5/44
No.:
RM077018