Phaser 6130 Color Laser Printer Service Manual 3-75Error Messages and CodesMCU NVRAM ErrorEngine NVRAM is corrupted.Applicable Chain Link■ 041-340: MCU NVRAM ErrorInitial Actions■ Cycle printer power.■ If the problem persists, follow the procedure below.NotePress the Down Arrow, Up Arrow, and OK buttons simultaneously todisplay error code detail called for in this procedure.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack Map References■ Toner Cartridge, PL5.1.21/5.1.22/5.1.23/5.1.24■ Transfer Unit, PL6.1.7■ MCU Board, PL8.2.13■ “Map 1 - Transfer Unit, Control Panel,Imaging Unit, Dispenser, Fuser” onpage 10-8■ “Map 4 - Toner Dispenser Motors, HVPS,MCU” on page 10-11■ “Xerographic” on page 10-24Troubleshooting Procedure TableStep Actions and Questions Yes No1 Check the errorDoes the error still occur when turningoff and on the power?Go to step 2. Complete2 Check the failure partsIs the “ADDR: 1***” displayed?Replace theMCU Board(page 8-59).Go to step 3.3 Check the failure partsIs the “ADDR: 30**” displayed?Replace theTransfer Unit(page 8-41).Go to step 4.4 Check the failure partsIs the “ADDR: 31**” displayed?Replace theYellow TonerCartridge.Go to step 5.5 Check the failure partsIs the “ADDR: 32**” displayed?Replace theMagenta TonerCartridge.Go to step 6.6 Check the failure partsIs the “ADDR: 33**” displayed?Replace theCyan TonerCartridge.Replace theBlack TonerCartridge.
