Oki Data CONFIDENTIAL45487001TH Rev.1 4-22 /4. Maintenance menus4.3.2.2 Normal self-diagnostic mode (Level 1)The normal self-diagnostic mode menus are as follows:Option Self-diagnosis Menu Adjustment MaintenanceUtility1 Switch scan test SWITCH SCAN Checks input sensor andswitchNo.182 Motor clutch test MOTOR&CLTCHTESTTests the operation of amotor or clutch.No.193 Test printing TEST PRINT Prints a test pattern storedin the PU.Unavailable4 Consumablecounter displayCONSUMABLESTATUSDisplays the usage of aconsumable.No.235 Consumable lifecounter displayPRINTER STATUS Displays the life counter ofa consumable.No.236 Factory/Shippingmode switchingFACTORY MODESETSwitches between Factoryand Shipping modesNo.3, No.247 Fuse statusdisplayDisplays the status of afuse.No.248 Engine parametersettingSENSOR SETTING Sets whether to enableor disable error detectionperformed by each sensor.No.259 Display of LEDhead serialnumberLED HEAD DATA Displays the serial numberof LED head data.Unavailable10 NVRAMparameter settingNVRAMPARAMETERMust not be used. Unavailable11 ContrastadjustmentGRAPHIC PANELADJUSTAdjusts the contrast on thepanel.Unavailable12 Buzzer test BUZZER TEST Buzzer sound test Unavailable4.3.2.2.1 Entering self-diagnostic mode (level 1)Note! Entering the System Maintenance mode of C811/C822/C831dn/C841dnrequires a password. Refer to table 4-1 for description on it.1. Turn on the printer while using the MENU , MENU button and HELP buttoncombination to enter the System Maintenance mode.2. Press the MENU or MENU button more than one time to display “DiagnosticMode”. Then press the ENTER button to display “DIAGNOSTIC MODE”.DIAGNOSTIC MODEXX.XX.XX FACTORY/SHIPPING3. XX.XX.XX on the LCD display identifies the PU firmware version. The FACTORYWORKING MODE setting is displayed in the right portion of the lower row. Thesetting is normally S-MODE, which identifies Shipping.4. Press the MENU and MENU button to go to each self-diagnostic step (pressthe MENU or MENU button to display the next or preceding menu option).4.3.2.2.2 Exiting self-diagnostic mode1. Turn of the printer and, after ten seconds, turn it on.