103[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.• No Is the operation of the inlet sensor plate normal (moves freely when it is touched)?• No Replace the inlet sensor plate.• Yes Clean the inlet sensor on the power supply/sensor board, or replace the power supply/sensor board.• No Does the JAM alarm occur after paper feeding?• Yes Is the paper fed to the inlet sensor plate?• Yes Is the operation of the input sensor plate normal (moves freely when it is touched)?• No Replace the inlet sensor plate.• Yes Clean the inlet sensor on the power supply/sensor board or replace the power supply/sensor board.• No Replace the hopping roller rubber or paper cassette.• No Is the hopping roller rotating?• Yes Set the paper tray properly.• No Is the registration motor rotating?• Yes Replace the one-way clutch gear of the hopping roller assembly.• No Is RM connector on the main control board being connected properly?• No Connect RM connector properly.• Yes Is the coil resistance (normal resistance: both betweenPins 1 and 2, as well as Pins 3 and 4 are about 18.6 Ω) ofthe registration motor normal?• No Replace the registration motor.• Yes Replace the main control board. Outlet sensorExit rollerHeat rollerTransfer rollerPaper sensorRegistration rollerInlet sensor 1Inletsensor 2Tonersensor Paper end sensorHoppingrollerPaper feeding direction
