Top Page > Troubleshooting: TCRU/ORU > Post-Processing Option Troubleshooting > Interposer > Vertical lines and scratches occur at random positions > Cause:
Due to accumulated paper dust and paper rubs, fine lines or scratches may occur in the ejecting direction and parallel direction.
Even if there is a large amount of paper dust adhering to the paper, fine lines or scratches could occur parallel to the ejecting direction.