OKI C810
Troubleshooting. Paper feed jam (Error 391: 1st Tray) 1
Jam occurs immediately after the power is turned on. (1st tray)
Check condition of the paper running path
Check item | Check work | Actions to be taken at NG |
---|---|---|
Paper running path of the front unit | Open the front cover check if paper is not jammed in the paper running path. | Remove the jammed paper. |
Check condition of the mechanical parts
Check item | Check work | Actions to be taken at NG |
---|---|---|
Check the sensor levers of the paper entrance sensor 1 and the paper entrance sensor 2. | Check if shape and movement of the sensor levers have any abnormality or not | Replace the sensor lever with the good sensor lever. |
Check condition of electrical parts
Check item | Check work | Actions to be taken at NG |
---|---|---|
Check the detection condition of the sensor signal. | Confirm that the sensor signals are normally detected by using the Maintenance Menu SWITCH SCAN function. | Replace either the PU board or the front sensor board (RSF PCB) or connection cable. |
Check output signal level of the paper entrance sensor 1 and that of the paper entrance sensor 2. | Check for the following signals at the FSNS connector 16 of the PU board. Pin-4: Paper entrance sensor 1 Pin-3: Paper entrance sensor 2 Confirm that the above signal levels change when the sensor lever is operated. |
Replace the front sensor board (RSF PCB) |
Check the power voltages supplied to the front sensor board (RSF PCB) | Check the 5V power at the FSNS connector 16 of the front sensor board (RSF PCB). Pin-1: 5V power supply Pin-5: 0VL |
Replace the connection cable. |