OKI ES8473MFP Error Codes list and solutions – Compatible Printer model: OKI ES8473MFP – OKI ES8473MFP Error Code description: Code: 001 Display: Inspection is required. 001:Error Description: Machine Check Exception hardware fault detection (board failure or poor power supply) Causes: Does this error message reappear? Troubleshooting Guides: Cycle the power. Replace the CU/PU board. Code: […]