Configure settings to correct curling (arc-like distortion) of the output paper.
Touch panel - [MACHINE] - [Paper Setting] - [Change Set] - [Curl Adjustment]
Touch panel - [MACHINE] - [Paper Setting] - [New Setting] - [Curl Adjustment]
Touch panel - [MACHINE] - [Reg./Del.PaperSet.] - [Add/Edit] - [Curl Adjustment]