Oki Data CONFIDENTIAL43827101TH Rev.2 202 /7.5.2.(5) Paper Path Jam(Error 381)(5-1)Paper path jam occurs right after turning on the powerPaper running route in frontunitCheck sensor levers of WRsensorCheck the state of sensorsignal detection.Check the output level of theWR sensor.Check the power supply ofthe front sensor PCB.Confirmation TasksCheck to see if there is paper jammed on the running route.Confirm that there is no abnormality in the shape of the sensorlever and in the operation.Use the SWITCH SCAN function of the self-diagnostic mode tocheck to see if the sensor signal is detected normally.Check the following signal through the FSNS connector of thePU PCB. Pin 2: WR sensorConfirm that the above signal level varies as the sensor lever isactuated.Check 5V power with CN connector of a front sensor PCB.5pin:5V Power1pin:0VLAction at NGRemove the jammedpaper.Replace the sensorlever with a normalone.Replace the PU PCB,front sensor PCB orconnection cord.Replace the frontsensor PCB.Replace the connectioncord.(5-1-2) Check of state of mechanical parts(5-1-1) Check of state of running route(5-1-3) Check of electrical partsConfirmation Items
