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Eng
OKI ES9411dn
Troubleshooting. 4 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
Check item |
Check work |
Actions to be taken at NG |
Paper running path of the 1st tray unit |
Open the side cover of the 1st tray unit to check for jammed paper 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 lever of the 1st tray paper entrance sensor. |
Check if shape and movement of the sensor levers have any abnormality or not. |
Replace with a normal 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 the PU/CU PCB, cassette sensor relay board, or connection cable. |
Check the power voltages supplied to the cassette sensor relay board. |
Check whether the signal level at pin-2 of TRYSNS of the PU/CU PCB changes depending on the presence of paper. |
Replace the connection cable. |