Oki Data CONFIDENTIAL43163501TH Rev. 1 147 /(5-4) Transport jam occurred immediately after fuser is in position.Fuser motorHeat roller detectedtemperatureFuserConfirmation TasksBy using the motor clutch test function of the maintenanceutility, check whether fuser motor operates normally.Check whether load exists.By using the switch scanning test function of the maintenanceutility, check the heat roller detected temperature. Checkwhether abnormal low-temperature or high-temperature hasbeen detected.Check whether fuser has been mounted normally. (has thefuser been pressed to bottom?)Action at NGReplace the main board(BLA PCB) with a newone.Replace the fuser with anew one.When trying to use anew fuser, please utilizethe fuse keep mode ofthe maintenance utility.Replace the fuser with anew one; replace therear sensor relay board(ZAK PCB) or mainboard (BLA PCB) withnew one.When trying to use anew fuser, please utilizethe fuse keep mode ofthe maintenanceutility.(See Note! onpage 154.)Mount the unit inposition.(5-4-1) Check the motor operation(5-4-2) Temperature control of roller rotate speed(5-4-3) Check the mounting of fuserConfirmation Items