5. Migrating the serial number1. Enter the serial number (8-digit alphanumeric) inSettings/Registration > System Settings > DeviceInformation > Location.2. Execute the following service mode, and write theserial number entered in the previous step on theMain Controller PCB.COPIER > OPTION > SERIAL > SN-MAINAfter it has been written, the serial number enteredin "Location" is deleted.3. Turn OFF and then ON the main power.4. Execute the following service mode, and check theserial number on the System Management DataList that was output (Body. No.).COPIER > FUNCTION > MISC-P > SPEC6. Migrating user data and service mode data1. Enter service mode, and set the following item to"1".• COPIER > OPTION > USER > SMD-EXPTNOTE:The [SMD-EXPT] setting can be specified either from theControl Panel or from the remote UI.2. Using the DCM function (Refer to “SettingInformation Export/Import Function (DCM)” onpage 58), restore the following information.• User data (the settings of the [Settings/Registration] menu and the address book)• Service mode setting information3. Enter service mode, and set the following item to"0".• COPIER > OPTION > USER > SMD-EXPTNOTE:The [SMD-EXPT] setting can be specified either from theControl Panel or from the remote UI.7. Reinstall the drivers.1. Uninstalling Old Drivers.• Printer Driver• FAX Driver• Scanner Driver• Network Scan Utility. (for machines withnetwork connection)* As for the procedure, refer to "Uninstalling theSoftware" in the Starter Guide.2. Refer to the following items in the Startup Guideand install the drivers which were uninstalled.• In case of network connection: "Installing viaNetwork Connection"• In case of USB connection: "Installing withUSB Connection"NOTE:MAC address information is changed after replacement ofthe Main Controller PCB. Therefore, when the PC and themachine are connected by the network, the PC will not beable to recognize the machine on the network. When thePC and the machine are connected by the USB memorydevice, the PC will not be able to recognize the machineif the USB ID is changed. It becomes therefore necessaryto reinstall the driver.In the case of a model without fax for EUR (MF724Cdw),perform the following works.NOTE:After replacing the Main Controller PCB, the value ofthe service mode (SDTM-DSP) to set whether todisplay or hide the automatic shutdown menubecomes "0" (default value).In that case, the automatic shutdown menu is notdisplayed on the LUI of the machine.To display the automatic shutdown menu on the LUIof the machine, it is necessary to execute thisprocess.8. Setting of automatic shutdown menu displaySet 1 for automatic shutdown menu display in servicemode (default: 0).COPIER > OPTION > BODY > SDTM-DSP9. Turn OFF and then ON the main power.10. Checking the setting of Auto Sleep TimeIn setting menu, check that the setting value of AutoSleep Time is 1. (If the setting value is 0, automaticshutdown does not work.)Menu > Timer Settings > Auto Shutdown TimeRemoving the Main ControllerSupport Plate■ Preparation1. Removing the Right Cover.(Refer to “Removing theRight Cover” on page 120)4. Disassembly/Assembly161