Crunching paper or crooked folds on the DI900, DI950 FastPac Inserting Systems

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Products affected: DI900™ and DI950™


Crunching paper or crooked folds


Jams and crooked folds may start in a different area of the machine than where the issue is initially discovered. Check upstream areas of the machine for possible sources of the problem.



This issue can be caused by many things, including:

  • Misaligned feeder side guides. The guides keep insert material straight as it travels through the system. Over time, the guides may shift and impede insertion.
  • Poor material condition.
  • Poor roller condition. Toner build-up or worn edges can diminish the roller's ability to grasp or drive the material correctly.


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UPDATED: 14 August 2021