61.c4.d3 Error -

Does the error reappear immediately without any network cable connected? If yes, move to Step 2. If the error only appears after you send a job, the problem is likely a specific file or driver.

Turn off the printer, disconnect the power, and carefully remove the formatter assembly handle at the front or back (depending on the model). Ensure all internal connectors are firmly seated before sliding it back in. 61.c4.d3 error

In older or heavily used printers, the formatter board’s NVRAM (non-volatile RAM) can develop bad sectors. This is true hardware degradation. Does the error reappear immediately without any network