43856301TH Rev.3 97 /Oki Data CONFIDENTIAL 5. Maintenance Menu5.3.1.2 Ordinary self-diagnostic mode (level 1)Menu items of the ordinary self-diagnostic mode are shown below.Item Self-diagnostic menu Adjustment contents Maintenanceutilities1 Switch scan test SWITCH SCAN Entry sensor check andswitch check No.202 Motor clutch test MOTOR&CLTCHTESTMotor and clutch operationtest No.213 Test printexecution TEST PRINT PU built-in test pattern print Operationfrom themaintenanceutilities cannotbe made.4 Color registrationcorrection test REG ADJUST TEST Color registration mechanismcheck No.225 Density correctiontest DENS ADJ TEST Density correction mechanismcheck No.236 Consumable itemcounter display CONSUMABLESTATUSConsumable itemsconsumption status display No.257 Consumable itemaccumulativecounter displayPRINTER STATUS Consumable itemsaccumulative consumptionstatus displayNo.258 Factory/Shippingmode selection FACTORY MODESETSwitching between theFactory mode and theShipping modeNo.3, No.269 FUSE statuscheckRespective FUSEs statusdisplay No.2610 Engine parametersetting SENSOR SETTING Valid/Invalid setups of errordetection by various sensors No.2711 NVRAM parametersetting NVRAMPARAMETER Do not use this item Use of thismenu item isprohibited5.3.1.2.1 How to enter the self-diagnostic mode (level 1)Note! For C710, password is required to enter the system maintenance menumode. Refer to Table 5-1 (C710)1. While pressing the MENU+, MENU-, and HELP keys simultaneously, turn on the powerto enter the system maintenance mode.2. Press the MENU+ key or MENU- key several times until the message "ENGINEDIAG MODE" is displayed. Then, press the ENTER key to display "DIAGNOSTICMODE".DIAGNOSTICMODEXX.XX.XX FACTORY/SHIPPING3. XXX.XX.XX of the message "DIAGNOSTIC MODE XX.XX.XX" that is displayedon the LCD display area indicates the PU firmware version number. TheFACTORY WORKING MODE setup value is displayed in the right of the lowerrow. S-MODE of "SHIPPING" is displayed normally.4. Press the MENU+ key or MENU- key to advance to the desired step of eachself-diagnostic menu. (The menu items rotate when either the MENU+ key orMENU- key is pressed.)5.3.1.2.2 How to exit the self-diagnostic mode1. Turn off the power once and back on 10 seconds later.