Error in Paper-axis Encoder quadrature.
Try the following:
1. Check that the Paper-Axis Motor cable is NOT broken or damaged.
2. Check that the Paper-Axis Motor cable is correctly connected.
3. Replace the Paper-Axis Motor.
4. If the Error Code continues, replace the Main PCA.
Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.