43827101TH Rev.2 155 /Oki Data CONFIDENTIAL5.4 Setup after replacement of partsThis subsection describes the necessary adjustments to be made when parts have been replaced.Replaced Part AdjustmentLED Head Not necessaryImage Drum Cartridge Not necessary(Y, M, C, K)Fuser Unit Not necessaryBelt Unit Not necessaryPU PCB Necessary to copy EEPROM information. Utility required.GDI CU PCB Necessary to copy EEPROM information. Utility required.PDL CU PCB Necessary to change EEPROM. Remove ROM from old PCB andattach it to new PCB.5.4.1 Precautions on the replacement of engine control PCB1. When EEPROM of the PCB to be removed is accessible(When SERVICE CALL 105 [Engine EEPROM Error] is not displayed)(1) Read the EEPROM information from the PCB to be removed by using the PU PCBreplacement function (Subsection 2.4.1.1.1 PU PCB replacement function in the MaintenanceUtility Operation Manual), and save it provisionally on the HDD of the PC.(2) Copy the EEPROM information saved on the HDD to the EEPROM of the PCB to be newlyinstalled, by using the PU PCB replacement function (Subsection 2.4.1.1.1 PU PCBreplacement function in the Maintenance Utility Operation Manual).Note! To download and write the EEPROM information by the maintenance utility, access theEEPROM after placing the printer in the "Forced ONLINE mode" by the proceduredescribed below. Notice that, if the printer has an error currently issued, the error is alsodisplayed in the Forced ONLINE mode.1. When turning on the printer, press and hold down the [BACK]+[MENU]+[ENTER]keys, until "STATUS MODE" is displayed on the operator panel.2. Thereafter, the "ONLINE" indication will appear if the printer is in normal condition. Ifthe printer has an error, it will be displayed. However, the printer is in ONLINE statusinternally and, therefore, ready to hold communication.2. When EEPROM of the PCB to be removed is inaccessibleIf the PCB to be removed causes SERVICE CALL 105 (Engine EEPROM Error) to be displayedon the operator panel, or the EEPROM data cannot be downloaded, first replace it with a newPCB, and then, work by the following procedure using the maintenance utility:(1) Setup of PU Serial Number(Subsection 2.4.1.2 Setup of PU PCB of the Maintenance Utility Operation Manual)The printer has a SAP Serial Number applied. The 12-digit SAP Serial Number is marked inthe top line of the serial number label, and is made up of two digits for production base, twodigits for manufacturing year and month, six digits for serial No. (Sequence No.), and twodigits for Revision.• The PU Serial Number is a 10-digit number excluding the two digits for Revision fromthe 12-digit SAP Serial Number.• The number should be set on the "Subsection 2.4.1.1.2.1 PU Serial Number setup"screen in "Subsection 2.4.1.1.2 PU PCB setup function" of the maintenance utility.• Set in the “2.4.1.1.2 PU serial number setting” screen of “2.4.1.1.2.1 PU PCB setting”of the maintenance utility.
