Oki Data CONFIDENTIAL43967002TH Rev. 1 348 /7. Troubleshooting7.5.3.(1) Color has faded-out and blurred entirely. (Refer to Figure 7-2 A)(1-1) Color are faded-out and blurred.Check item Check work Action to be taken at NG(1-1-1) TonerResidual amount oftonerConfirm that the message “Please InstallToner“ or “Toner Enpty” is not displayed onthe Operator Panel screen.Replace the tonercartridge with thenew one.Tape attached tothe opening of tonercartridgeCheck that the tape is not removed fromthe opening of the toner cartridge.Move the tonercartridge lever toClose position, andpeel off the tapefrom the opening ofthe toner cartridge.(1-1-2) LED headLens of LED head Check to see that lens surface of the LEDhead is not stained by toner or paper dust.Clean the lens withLED head lenscleaner.LED head installedstatusConfirm that the LED head is installed inthe LED head holder normally. Confirm thatthe tension springs in the right and left arenormally installed.Return the MFPto the installedcondition.(1-1-3) Print mediaTypes of media Check that the specially heavy media is notused for printing.Use the specifiednormal paper.Check item Check work Action to be taken at NG(1-1-4) High voltage terminalID unit terminal Confirm that the ID unit high voltageterminal keeps contacting with the highvoltage terminal by visual check.(Refer to Fig. 7-3.)ID unit replacementor high voltageterminal repair Ifany attempt of usingnew ID unit as atrial is going to bemade, be sure touse the SystemMaintenance MenuFUSE KEEP MODE.(1-1-5) ID unit installed conditionID unit downposition (Transfererror)Insert and remove the ID unit with handto check that it can move down to thespecified down position without anyabnormal load. Make a test of insertinga paper in between the drum and belt. Ifpaper top can easily pass, it is not good(NG).Check the U grooveof the side plate forany abnormality. If itcannot be repaired,replace it.
