OKI B512dn Error Codes list and solutions – Compatible Printer model: OKI B512dn – OKI B512dn Error Code description: Code: 002, 003, 005, FFF Display: POWER OFF/ON 002:ERROR 003:ERROR 005:ERROR FFF:ERROR Description: CPU Exception Troubleshooting Guides: Is the error display provided again? Yes Turn off and on the SFP. Replace the CU/ PU board. Code: […]