Sc202-00; Sc203-00; Polygon Mirror Motor: On Timeout Error; Polygon Mirror Motor: Off Timeout Error - Ricoh Pro 8300S Troubleshooting Manual

1.SC Codes
SC200

SC202-00

Error Name

Polygon Mirror Motor: ON Timeout Error

Pattern
D
Error Condition
After the polygon mirror motor turned on, or when the rpm was changed, the motor did not rotate
normally within the prescribed time.
Major Cause
 Harness is not connected correctly.
Polygon mirror motor (BLM13) or polygon motor driver is defective.

BiCU is defective (polygon signal, image processing IC defective).

 PSU (PSU-B) is defective (polygon power supply, fuse defective).
Polygon harness is defective.

 Power harness is defective.
Solution
1. Check the power supply (Check the polygon power supply (24 V)).
Check whether the LED (BiCU:LED3:+24V) is lit.
If the LED is lit, inspect and reconnect the harness between the laser unit and BiCU (polygon

harness).
If the LED is not lit, inspect and reconnect the harness between BiCU and PSU (PSU-B)

(power harness).
Replace the BiCU, PSU (PSU-B), and/or the harness between BiCU and PSU (PSU-B)
preferentially.
2. Replace the laser unit (if there is polygon mirror motor (BLM13) or polygon motor driver defect).
3. Replace the BiCU (if there is polygon signal or image processing IC defect).
4. Replace the PSU (PSU-B) (if there is polygon power supply or fuse defect).
5. Replace the harness between the laser unit and the BiCU.

SC203-00

Error Name

Polygon Mirror Motor: OFF Timeout Error

48