Folding Deviation

Cause:

Depending on paper hardness, folding deviations (skewed folding) may appear.

• A deviation may appear if the edge dimensions of the parts between folds are different.
• For example, in the following illustration, the dimensional difference between the top (L2[2]) and bottom (L2[1]) edges is a deviation.

Folding deviation example of L2 for Z-fold

Solution:

Adjust the deviation.

The multi-folding unit has three adjusting screws (L1, L2, and L3) to adjust deviation.

L1

L2

L3

The screws can be used to do adjustments for the following fold methods:

• Z-fold

• Half Fold

• Letter Fold-in

• Letter Fold-out

• Double Parallel

• Gate Fold

The mark indicates the leading edge (relative to the paper feed direction), and the mark indicates the trailing edge.

How to adjust the folding deviation

This procedure is the same for L1, L2, and L3.

1. Open the front cover of the multi-folding unit.
2. Remove the mounting screw.
   If the mounting screw is attached to the adjusting screw hole, unfasten it.
3. Turn the adjusting screw to adjust the deviation.
   
   • To increase the length at the bottom part of paper, turn the screw clockwise.
   • To decrease the length at the bottom part of paper, turn the screw counterclockwise.
     
4. Attach the mounting screw to fasten the adjusting screw.
   If the mounting screw is attached to the adjusting screw hole, fasten it.
5. Close the front cover of the multi-folding unit.