7. If the crease is skewed, adjustment is necessary.
NOTE:
Wrong crease positions are marked in red, correct crease position is marked in green.
Feed direction
8. To adjust crease skew, loosen the crease adjustment knob by rotating it counterclock-
wise.
9. Move the knob slightly, either to the left or to the right depending on the direction of the
crease skew.
10. Rotate the knob clockwise to secure it.
11. Run another proof sheet to check if the crease is now perpendicular to sheet edge.
Repeat steps 6 to 10 if necessary.
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