3-120 Phaser 6180MFP Multifunction Printer Service ManualError Messages and CodesMCU NVRAM ErrorEngine NVRAM is corrupted. The following troubleshooting procedure appliesto this error.Applicable Chain Link■ Chain Link 041-340: MCU NVRAM Error (IOT NVRAM Error)Initial Actions■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ Transfer Unit, PL4.1.1■ HVPS, PL5.2.15■ Fuser, PL6.1.10■ EEPROM Board, PL9.2.1■ MCU Board, PL9.2.13■ Right Side Harness, PL10.1.12■ “Map 1 - Electrical and Drive” onpage 10-10■ “Map 4 - LVPS and MCU Board” onpage 10-13■ “High Voltage” on page 10-36■ “Xerographic” on page 10-34Troubleshooting Procedure TableStep Actions and Questions Yes No1 1. Check the error on the Control Menudisplay.2. Is the “ADDR:38**” errordisplayed?Go to step 2. Go to step 3.2 1. Reseat the EEPROM Board(page 8-81).2. Does the error still occur when theprinter is turned On?Replace theEEPROM Board(page 8-81).Complete.3 1. Check the error on the Control Menudisplay.2. Is the “ADDR:3C**” errordisplayed?Go to step 4. Go to step 5.4 1. Reseat the Fuser (page 8-12).2. Does the error still occur when theprinter is turned On?Replace theFuser(page 8-12).Complete.5 1. Check the error on the Control Menudisplay.2. Is the “ADDR:3A**” errordisplayed?Go to step 6. Go to step 7.
