Utax 6555i User Manual page 393

Setup and Registration (System Menu) > System Menu
Item
Calibration
Correct Paper Curl
Calibrate the device to ensure consistency with the original grayscale.
For the procedure, refer to
NOTE
If you find that the grayscale is not improved by this calibration, use
(page 10-33).
Some paper types and paper stored in certain conditions may curl. This feature can be used to
correct paper curling.
Value: Auto, Reduce Downcurl, Reduce Upcurl
Upcurl
NOTE
This function is displayed when the optional 4,000-Sheet Finisher is installed.
8-59
Description
Calibration on page 10-35.
Downcurl
Tone Curve Adjustment