Oki Data CONFIDENTIAL45487001TH Rev.1 4-36 /4. Maintenance menus4.4 Setup after part replacementThe following describes the adjustments necessary after part replacement:Replaced part AdjustmentLED head Not necessary.Drum cartridge Not necessary.Fuser unit Not necessary.Belt unit Not necessary.PU/ CU board Copying information stored in EEPROM, whichrequires utility software.4.4.1 Notes on PU/ CU board replacement1. When the EEPROM on a board to be removed can be accessed (when SERVICECALL 104 (Engine EEPROM Error), or 040 (EEPROM Error) is not displayed):(1) Using the board replacement function of Maintenance Utility (MaintenanceUtility operation manual, section 2.4.1.1.9), take out the information of theEEPROM on PU and Information of the EEPROM settings on CU from theboard to be removed, and temporarily store it onto an HDD of the computer.(2) Using the board replacement function of Maintenance Utility (MaintenanceUtility operation manual, section 2.4.1.1.9), copy the information of theEEPROM on PU stored in HDD of the computer and the information ofEEPROM settings on CU onto the EEPROM of a board to be newly installed.(3) Even when either information of EEPROM on PU or information of theEEPROM settings on CU is taken out, using the board replacement function ofMaintenance Utility (Maintenance Utility operation manual, section 2.4.1.1.9),copy either information of EEPROM on PU or information of the EEPROMsettings on CU which can be stored in the HDD of the computer onto EEPROMof a board to be newly installed.Information that cannot be taken out is separately set up in the same function.When the information of EEPROM on PU cannot be taken out, make a settingof the serial number on PU (Maintenance utility operation manual, section2.4.1.1.9.5) and a setting of switching to the Shipping mode (Maintenance utilityoperation manual, section 2.4.1.1.9.6) on the setup screen.When the information of EEPROM settings on CU cannot be taken out, makea setting of the information about a serial number on CU (Maintenance utilityoperation manual, section 2.4.1.1.9.4) on the setup screen.Note! When taking out or writing information from/into EEPROM by usingMaintenance Utility, use the procedure shown below to place the printer to theForced ONLINE mode before accessing the EEPROM. An error message isdisplayed even in the forced ONLINE mode when the printer has an error.i. When turning on the printer, press and hold down the [Back] and [Menu] and [Enter] button in combinatoin until “STATUS MODE” appears on theoperator panel.ii. When the printer operates properly, the operator panel shows “Ready ToPrint”. However, when the printer has an error, it indicates an error, but theprinter is internally online, being ready to communicate.2. When the EEPROM on a board to be removed cannot be accessed:When SERVICE CALL 104 (Engine EEPROM Error), or 040 (EEPROM Error) isdisplayed, or data cannot be read from the EEPROM, after replacing the board to anew one, follow the following procedure to perform operation by using MaintenanceUtility:(1) To setting necessary setting as the table below.Model Use for item of necessary to change the settingB721 ODA noneOEL/AOS noneB731 ODA noneOEL noneAOS Wireless LAN settingES7131 OEL noneAOS Wireless LAN settingMPS5501b ODA noneODB paper size and unit·When change the board for B731 AOS/ES7131 AOS,to change the wireless LANsetting should be valid to invalid.The setting method is following to MaintenanceUtility Manual.·When change the board for MPS5501b ODB,to change the paper size andunit should be Letter,inch → A4,Millimeter.The setting method is following toMaintenance Utility Manual.