OKI ES9542
Troubleshooting. 5 Feed jam (Error 380) 2
Jam occurs immediately after the paper feed is started.
Check condition of the paper running path
Check item | Check work | Actions to be taken at NG |
---|---|---|
Paper running path near the right side cover | Check if paper is jammed or not 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 paper entrance sensor 2 and the paper entrance sensor 3. | Check if shape and movement of the sensor levers have any abnormality or not. | Replace with a normal sensor lever. |
Motor operation check
Check item | Check work | Actions to be taken at NG |
---|---|---|
Hopping motor | Confirm that the hopping motor works normally by using the Motor & Clutch Test of the self-diagnostic mode. | Replace the PU/CU PCB or hopping motor. |
Hopping motor driver | Remove the HOPM connector of the PU/CU PCB and check the following at the connector side. 1 MΩ or more between pin-1/-2/-3/-4 and FG. |
Replace the PU/ CU PCB. |
Check the system connection
Check item | Check work | Actions to be taken at NG |
---|---|---|
Hopping motor drive cable | Check the connection condition of the cable. Visually check if the connector is connected in the half-way only or not, and check if the connector is inserted in a slanted angle or not. Also check that cables are assembled without any abnormality. |
Normalize the connection condition. Replace with a normal cable. |
Hopping motor drive cable | Check that any cable is not pinched during assembling of the printer. Remove the HOPM connector of the PU/CU PCB and check the following at the cable side. Short circuit between pin-1/-2/-3/-4 and FG |
Replace the cable and normalize the assembled condition. |
Hopping motor | Remove the HOPM connector of the PU/CU PCB and check that a resistance of 10Ω or less can be measured between pin-1 and pin- 2 and pin-3 and pin-4 respectively at the cable side. | Replace the hopping motor. |