Service Call 202-285; Sc200 (Engine: Image Writing) - Ricoh MP C3004 Field Service Manual

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6. Troubleshooting

Service Call 202-285

Error Name/Error Condition/Major Cause/Solution

Polygon Motor: ON Timeout Error

After the polygon motor turned on, or within the specified time (sec.) after

the rpm's changed, the motor did not enter READY status.

• The interface harness to the polygon motor driver damaged or not

connected correctly.

• Polygon motor or polygon motor driver defective

• Polygon motor drive pulse cannot be output correctly. (Polygon

• XSCRDY signal observation failing (Polygon controller)

1. Turn the main power OFF/ON.

2. Reconnect the connectors between LD unit and IPU.

3. Check CN586 (a connector with 1 pin) for the polygon mirror

motor from the PSU.

4. Replace the LD unit (Polygon mirror motor).

5. Replace the harness between the LD unit and IPU.

6. Replace the IPU.

7. Replace the PSU (or fuses on PSU).