The delivered paper has an upward curl with a arc of 4 cm (1.6”) or less at leading edge.
Solution:
Is the decurl unit installed?
Yes  | 
Go to the next step.  | 
No  | 
Go to Step 4.  | 
On the machine operation panel: Adjustment Settings for Skilled Operators > Paper Feed/ Output > Set Adjust Paper Curl to Adjust Concave Curl: Weak. (SP 1-906-001 to 012: De-curler Setting Tray <number>:Paper Path Selection)
Print the image. Is the problem resolved?
Yes  | 
Finished!  | 
No  | 
Go to the next step.  | 
Load the paper the other way up.
Print the image. Is the problem resolved?
Yes  | 
Finished!  | 
No  | 
Consult key operators.  | 
This folding error will not occur if uncurled paper is used or sheets that curl downward.