Deposits resembling fibers can occur at the leading edge on the back side of paper.

Cause
  1. When the fusing entrance guide plate [A] is raised to counter paper wrinkling during fusion in this machine, this can severely abrade the back side of paper at the leading edge.
  2. Paper dust from paper collects on the edge of the fusing entrance guide plate, causing toner and other matter scraped from the guide plate to form tendrils of fibrous deposits [B].
  3. The build-up of these fibrous deposits collects on the back side of the paper.

    [A] Fusing entrance guide plate
    [B] Fibrous deposits
    [C] Hot roller

Action

Do the following cleaning procedures.

  1. Remove the fusing unit. (Fusing Unit)
  2. Remove fusing unit top cover. (Fusing Upper Cover)
    (You can do this procedure without cover removal, but this procedure makes it easier to see the fusing entrance guide.)
  3. Remove the deposits [A] on the inner leading edge of the fusing guide plate.

  4. Bend the tip of a cotton swab [B], or fold a sheet of paper [C]*1, insert it between the edge of the guide plate and the hot roller, and then move it slowly back and forth along the length of the blade. Visually check to make sure that all the fibrous deposits have been removed.

    *1 If you choose to use folded paper, fold it as described below.

    1. Take one sheet of A4 paper and fold it three times in halves.

    2. Make a 1 cm fold at the tip of one end.

  5. Remove the deposits [A] at the leading edge of the fusing guide plate on the side where paper passes.

  6. Rub the cotton swab (or tip of the folded paper) on the guide plate in the direction of paper feed.

  7. Cut the tip of the folded paper (to about 30 mm), put it on the leading edge of the guide, and then move it along the direction of paper feed to make sure that nothing remains caught on the blade.

  8. Reattach the cover, reinstall the fusing unit, and then confirm that paper feeds correctly.
    The first sheets may collect dirt from deposits that fell onto the hot roller and pressure roller during guide blade during cleaning. These deposits should disappear after more paper passes through (about 10 sheets).