The vertical banding on a print image may be improved by the [Drum Rotation] function.

  1. Select a drum rotation level.
    [User Tools/Counter] key > Maintenance > Drum Rotation
  2. Select a drum rotation level from the following 2 levels: Level 1 (Normal) and Level 2 (Strong).

Operation

  • Level 1 : Photoconductor idles for 55 seconds
  • Level 2 : Photoconductor idles for 30 seconds (for black and white vertical banding)

Effectively Prevented Problems

  • Level 1 : Pieces of white banding (for half tone or continuous printing)
  • Level 2 : White vertical banding (for half tone), black vertical banding, and black horizontal banding

  • If the [Drum Rotation] function is performed many times, the life of the drum unit may be shortened.