Ricoh Pro C901 Technical Bulletin page 42

Model:
Aries-P1.5/C1.5
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Replace the belt overrun sensor: rear.
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)
477 D PTR motor lock error
The machine detects an error of the PTR motor while it is
rotating.
1. Check or replace the PTR unit.
2. Check or replace the PTR motor
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
479 D PTR position error
The PTR lift sensor detects an error of the PTR lift motor while it
is rotating.
1. Check or replace the PTR lift sensor.
2. Check or replace the PTR lift motor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
480 C ITB feed-back counter error
The ITB feed-back sensor detects an error of the ITB feed-back
encoder counter.
This SC does not affect the machine's operation. This is for
analytical use only.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
485 D Waste toner transport motor 1: Lock error
The machine detects an error of the waste toner transport motor
1 while it is rotating.
T
echnical
or 476" under "Troubleshooting" chapter in the Field Service
Manual.)
PTR cleaning blade flipped or overloaded
PTR drive overloaded
PTR motor defective
PTR lift sensor detective
PTR lift motor defective
Noise
B
ulletin
Date:
17-Feb-11
PAGE: 6/44
No.:
RM077018