2WIRE F-116 用户手册

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页码 150
Alignment and Troubleshooting
4-52
3) Not function of the gear of the fuser due to melting away
Description :  The motor breaks away from its place due to gear melting away.
1. Check the  Heat Lamp.
1. Replace the Fuser.
2. Replace the Main PBA. 
3. Replace the SMPS.