Brother MFC9140CDN
- Code: 0201
- Display: Print Unable 02 Turn the power off and then back on again.
- Description: Synchronization signal from the main motor cannot be detected. Or the main motor speed is unstable after a set period of time.
- Causes: 1 Main motor harness connection failure 2 Harness connection failure between the low-voltage power supply PCB and main PCB 3 Main motor failure 4 Low-voltage power supply PCB failure 5 Main PCB failure
- Remedy: Check the main motor harness connection and reconnect it. Check the harness connection between the low-voltage power supply PCB and main PCB, and reconnect it. Replace the process drive unit. Replace the low-voltage power supply PCB ASSY. Replace the main PCB ASSY.
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