Oki ES9476 MFP Hardware Troubleshooting Manual page 20

1.TROUBLESHOOTING FOR THE HARDWARE
 If paper jams occur frequently
The following are the common causes of paper jams. If the problem persists, check for the following situations.
 An unsuitable original is placed on the ADF.
 Unavailable paper with the equipment is used.
 Paper sizes are not consistent between the size in a tray or the MPT and the size registered in the equipment.
 All the jammed paper has not been removed.
 There is too much of a gap between the paper and the side or end guide in the tray.
 The amount of paper placed in a tray exceeds the limit indicated on the side guide of the tray.
20 Clearing a Paper Jam