Solution:

Measure the curl of the paper.

• Type of curl

  Face curl: The set paper is warped upward.

  Back curl: The set paper is warped downward.

• Measurement of curl

  Load one sheet of paper on a flat surface, apply the scale to the leading edge of the paper, and measure the curl at the four edges. The maximum value is the curl value.

• Curl standard

  Acceptable curl amount varies depending on the basic weight of the paper.

  Paper weight	Curl amount
  Paper Weight 0 - 6	Face curl: 10 mm Back curl: 10 mm
  Paper Weight 7	Face curl: 10 mm Back curl: 5 mm
  Paper Weight 8	Face curl: 10 mm Back curl: 3 mm
  Paper Weight 9	Face curl: 10 mm Back curl: 0 mm

Is the paper curl within the curl standard?

Place the curled surface down on a flat surface.

Hold the end of the paper and straighten it in the opposite direction to the curl direction so that the paper is rounded.

Is the problem resolved?

Remove the paper, loosen it, and reset it.

Is the problem resolved?

In [Adjustment Settings for Operators], 21: [Finishing: Finisher], select 2103: [Interposer Fan Level] and adjust the fan level in 01: [Interposer Upper Tray] or 02: [Interposer Lower Tray].

Is the adjustment value set to [0]?

Is the problem resolved?

In [Adjustment Settings for Operators], 21: [Finishing: Finisher], select 2103: [Interposer Fan Level] and then adjust the fan level in 01: [Interposer Upper Tray] or 02: [Interposer Lower Tray].

Change the fan level value to 10%.

Is the problem resolved?

Repeat Step 10 to change the fan level value to 30%.

For paper of Paper Weight 7 or 8, set the fan level value to 20%.

Is the problem resolved?