Marking, dandy roll

1. Use a dandy roll with a double cover.
— outside cover should have a spiral seam.
2. Use an oscillating high-pressure needle shower inside dandy.
3. Raise dandy by very small increments.
4. Dry the sheet more before it reaches the dandy.
5. Marking may result from poor shower application or plugged nozzles.
6. Ensure that dandy is not contributing to two-sidedness.