Table 31. Fatal error secondary codes (continued) C7058-90936 Troubleshooting with control-panel messages 189 Control-panel light pattern Fatal error secondary message Status log code Recommended action Bad fuser error (50) 40050 Be sure that the fuser is installed correctly and is fully seated. Reseat the fuser cables. Replace the fuser. Replace the engine controller assembly. Replace the power supply. Formatter internal RAM or ROM error Turn the printer off, then turn it back on. Replace the formatter. Fan motor error (58) 40058 Turn the printer off, then turn it back on. Turn the printer off, then reseat the connection between the fan and the formatter.
Replace the fan. Replace the engine controller assembly. NVRAM error (68) Turn the printer off, then turn it back on. Replace the formatter. Scan buffer error (64) 40064 Turn the printer off, then turn it back on. If the message persists, replace the formatter.