OKI C821 Error Codes list and solutions – Compatible Printer model: OKI C821 – OKI C821 Error Code description: Code: – Display: WDT ERROR R14=xxxx Description: PU firmware runaway Troubleshooting Guides: Does this error recur? Yes Turn on the power again. Replace the PU board. Code: – Display: ASIC ERROR Description: CU board (CU) DCON […]