Oki Data CONFIDENTIAL45762101TH Rev.1 3-243. MAINTENANCE MENUSDisplay Setting value Operation at thesetting value FunctionTONER SENSOR ENABLE Detects Valid/Invalid of toner sensoroperation.DISABLE Not to detectID UNIT CHECK ENABLE Checks Valid/Invalid of ID installationcheck operation.DISABLE Not to checkDRUM OVER LIFE STOP Not to continue The restriction on extendingthe life of toner-related itemsfive times is lifted.CONTINUANCE To continueWR POINT REVTBL=**H±*.***mm00H~FFH CorrectionvalueThe correction value is addedto the existing write-downposition.BOTTOM WRT POINTTBL=**H±*.***mm00H~FFH Cut value Amount of cut at the rear endof a paper is set.Hatched portion: Default is shown3.4.2.10 LED head serial number displayThis self-diagnostic menu item is used to check whether the downloaded LED head datamatches the serial number of the actual LED head.1. Enter the self-diagnostic mode (level 1), press the [2] or [8] key repeatedly ,andpress the [6] key when the "LED HEAD DATA" is displayed in the upper row of thedisplay area. (Pressing the [2] key increments the test item and pressing the [8] keydecrements the test item.)2. When the [2] key or the [8] key is pressed, serial numbers of the K LED head dataare displayed in order.3. Pressing the [4] key terminates the test. (Returns to the status of step 1.)K ** ** ****xxxxxxxxxxxxx** ** **** : Rev numberxxxxxxxxxxxxx : serial number3.4.2.11 NVRAM parameter settingDo not use this menu item.