OKI ES3451
Troubleshooting. Paper running jam (error code 381) 2
Jam occurs in the middle of paper running path.
Check item | Checking method | Action |
---|---|---|
Motor operation check | ||
Paper feed motor, belt motor and ID motor | Confirm that the paper feed motor, belt motor and ID motor work normally by using the Motor & Clutch Test of the selfdiagnostic mode. Check if any load exists or not. |
Replace the CU/ PU board or the feed motor or the belt motor or the ID motor or the ID unit or the belt unit. |
Paper feed motor driver, belt motor driver | Pull out the CU/PU board HOP connector, and check the following at the side of the connector: Between 1pin – FG: Several MΩ Between 2pin – FG: Several MΩ Between 3pin – FG: Several MΩ Between 4pin – FG: Several MΩ Pull out the CU/PU board BELT connector, and check the following at the side of the connector: Between 1pin – FG: Several MΩ Between 2pin – FG: Several MΩ Between 3pin – FG: Several MΩ Between 4pin – FG: Several MΩ |
Replace the CU/PU board |
Jam occurs immediately after paper has reached the fuser.
Check item | Checking method | Action |
---|---|---|
Motor operation check | ||
Fuser motor | Confirm that the fuser motor works normally by using the Motor & Clutch Test of the selfdiagnostic mode. Check if any load exists or not. |
Replace the CU/PU board. Replace the fuser motor. Replace the fuser unit. |
Temperature control of the roller rotation speed | ||
Heat roller detected temperature | Check the detected temperature of the heat roller using the self-diagnostic mode. Is abnormally high temperature or abnormally temperature detected? | Replace the fuser unit and the CU/PU board. |
Check the installation condition of fuser unit | ||
Fuser unit | Check that the fuser unit is installed normally. (Is it pushed in down to the bottom-most point?) |
Install the fuser unit correctly in a printer. |