6 - 29Outlet sensorExit rollerHeat rollerTransfer rollerPaper sensorRegistration rollerInlet sensor 1Inletsensor 2TonersensorPaperend sensorHoppingrollerPaper running direction[JAM error]2-1 Paper input jam• Does the JAM error occur when the power is turned on?• Yes Is the paper at the inlet sensor?• Yes Remove the paper.t• No Is the operation of the inlet sensor lever normal (moves freely whentouched)?• No Replace the inlet sensor lever.t• Yes Clean the inlet sensor on the power supply board, or replace the powersupply board.t• No Does the JAM alarm occur after paper feeding?• Yes Is the paper fed to the inlet sensor lever?• Yes Is the operation of the input sensor lever normal (moves freely whentouched)?• No Replace the inlet sensor lever.t• Yes Clean the inlet sensor on the power supply board or replace the power supplyboard.t• No Replace the hopping roller rubber or separator assy.t• No Is the hopping roller rotating?• Yes Set the paper tray properly.t• No Is the registration motor rotating?• Yes Replace the one-way clutch gear of the hopping roller assembly.t• No Is connector CN3 on the control board being connectedproperly?• No Connect connector CN3 properly.t• Yes Is the coil resistance (normal resistance: about18.6 Ω) of the registration motor normal (see 7.3)?• No Replace the registration motor.t• Yes Replace the Main Control PCB.
