Oki ES3640MFP Service & Troubleshooting Manual page 82

384: Paper Jam
Condition
Jam near the exit area
1. When the printer is turned on, or the cover is opened and closed, Job-Off sensor has changed to ON-state.
The printer stops printing immediately when the jam occurs.
Cause
1. Transport rollers cannot transport paper because they have become dirty with paper Dust, toner, etc.
2. A piece of paper, foreign substance, etc., got stuck in the Job Off sensor lever.
3. The Job Off sensor motion failure
How to remove the jammed paper
Open the top cover - Check if there is a piece of paper or foreign substance near the Job Off sensor.
Open the Face-up Stacker - Open the exit side cover
Check Points
Open the exit side cover, and check the following areas and clean them.
Frequent Jams Check the inside of the exit side cover and rollers and clean thoroughly Check for a piece of paper
or foreign substance in the paper path