OKI C332dn
Troubleshooting. 3 Paper feed jam (error code 391: 1st tray) 2
Jam occurs immediately after the paper feed is started. (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 | 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 |
---|---|---|
Hopping sensor and IN sensor lever check | Check the sensor lever shapes and operations for any problem. | Replace the sensor lever(s) with proper one(s). |
Check the separator assemblies of the feed roller, the pickup roller and the tray. | Check if any foreign materials such as paper dust on the surface of the feed roller or of the pickup roller or not. | Remove the foreign material. |
Check if the feed roller or the pickup roller has worn out or not. | Replace the separator assemblies of the feed roller, pickup roller and tray. |
Motor operation check
Check item | Check work | Actions to be taken at NG |
---|---|---|
Paper feed motor | Confirm that the paper feed motor works normally by using the Motor & Clutch Test of the self-diagnostic mode. | Replace the PU board or the paper feed motor. |
Paper feed motor driver | Pull out the CU/PU board HOPSIZE connector 1, and check the following at the side of the connector. Several M between pin-1 – FG. Several M between pin-2 – FG. Several M between pin-3 – FG. Several M between pin-4 – FG. |
Replace the CU/PU board. |
Check the system connection
Check item | Check work | Actions to be taken at NG |
---|---|---|
Paper feed motor drive cable | Check the connection condition of the cable. Check if the connector is connected in the halfway only or not, and check if the connector is inserted in a slanted angle or not. Check also that cables are assembled without any abnormality. |
Replace the cable with the good cable that normalizes the connection condition. |
Paper feed motor drive cable | Check that any cable is not pinched during assembling of the printer. Pull out the CU/PU board HOPSIZE connector 1, and check the following at the side of the connector. Short circuit between pin-1 – FG Short circuit between pin-2 – FG Short circuit between pin-3 – FG Short circuit between pin-4 – FG |
Replace the cable with the good cable that normalizes the connection condition. |
Paper feed motor | Remove the HOPSIZE connector 1 of the PU board and check that approx. 3.4Ω can be measured between pin-1 -pin-2 at the cable end, and that approx. 5Ω can be measured between pin-3 -pin-4 respectively. | Replace the paper feed motor. |
Solenoid operation check
Check item | Check work | Actions to be taken at NG |
---|---|---|
Feed clutch | Confirm that the paper feed solenoid works normally by using the Motor & Clutch Test of the self-diagnostic mode. Pull out the cassette for the rollers to be seen, and check operation. |
Replace the CU/PU board or the feed solenoid. |
Check the system connection
Check item | Check work | Actions to be taken at NG |
---|---|---|
Feed clutch cord | Check the connection condition of the cable. Check if the connector is connected in the halfway only or not, and check if the connector is inserted in a slanted angle or not. Check also that cables are assembled without any abnormality. | Replace the cable with the good cable that normalizes the connection condition. |
Cord for feed clutch | Check that any cable is not pinched during assembling of the printer. Pull out the CU/PU board HOC connector 14, and check the following at the side of the cord. |
Replace the clutch and properly assemble appropriate parts. |