Oki Data CONFIDENTIAL45487001TH Rev.1 4-33 /4. Maintenance menus4.3.2.10 LED head serial number displayThe LED head serial number display is used for viewing whether downloaded data aboutLED heads agrees with the serial numbers marked on the LED heads.1. Enter the self-diagnostic mode and, until LED HEAD DATA appears, press theMENU or MENU button (the MENU button displays the next test option andthe MENU button displays the preceding test option). Then press the ENTERbutton.2. Pressing the MENU or MENU button displays each of the K, Y, M and C LEDhead data serial numbers.3. Press the BACK button to end the option (the state in step 1 is restored).K ** ** ****xxxxxxxxxxxxx** ** **** : A revision numberxxxxxxxxxxxxx : A serial number: Head type data: Light amount data: Head serial No.Note! If the serial number of the LED head data is not ASCII code (0x3X/0x4X/0x5X),it is indicated by ‘ . ’.4.3.2.11 Contrast adjustmentThis contrast adjustment is used for the adjustment of the panel contrast.1. Enter the self-diagnostic mode (Level 1) and, until the following messageappears, press the MENU or MENU button.GRAPHIC PANEL ADJUST2. Pressing the ENTER button displays the adjustment item in the upper display,and the current setting value in the lower display.Hold down the MENU or MENU button until the value you want to set isdisplayed.CONTRAST … MENU : The setting value is incremented.MENU : The setting value is decremented.CONTRAST ADJUST1CH3. Repeat step 2 when necessary.4. Press the BACK button to end this function (the state in step 1 is restored).Contrast and lightness adjustment (GRAPHIC PANEL ADJUST)Display Setting Default FunctionCONTRAST ADJUST 0 - 3FH 1CH Setting of contrast* Options set are effective in this test mode. (the options are not written inEEPROM)In addition, when returning to the normal operation mode, the contrast setting ofthe CU side is applied.
