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Clean the Drum Unit

If your printout has dots or other repeating marks at 3.7 in. (94 mm) intervals, the drum may have foreign material, such as glue from a label, stuck on the drum surface.

  1. Make sure the machine is in Ready mode.
  2. Press image [Settings]>[All Settings]>[Print Reports]>[Drum Dot Print].
  3. Press [OK].
    The machine prints the Drum Dot Check Sheet.
  4. Press image.
  5. Press and hold image to turn off the machine.
  6. Open the front cover.
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  7. Remove the toner cartridge and drum unit assembly from the machine.
    image
  8. Push down the green lock lever and take the toner cartridge out of the drum unit.
    image
  9. Turn the drum unit as shown in the illustration. Make sure that the drum unit gear (1) is on the left side.
    image
  10. Use the numbered markers next to the drum roller to find the mark on the drum. For example, a dot in column 2 on the check sheet means that there is a mark in drum region “2”.
    image
  11. Turn the drum unit edge toward you while looking at the drum surface to find the mark.
    image
    IMPORTANT
    • To avoid print quality problems, DO NOT touch the surface of the drum unit, only the edge.
  12. Wipe the drum unit surface gently with a dry cotton swab until the mark or foreign material on the surface comes off.
    image
    NOTE
    DO NOT clean the surface of the photosensitive drum with a sharp object or any liquids.
  13. Push the toner cartridge firmly into the drum unit until you hear it lock into place.
    image
    image
    Make sure you put the toner cartridge in correctly or it may separate from the drum unit.
  14. Reinsert the toner cartridge and drum unit assembly back into the machine.
    image
  15. Close the front cover of the machine.
  16. Press image to turn on the machine.
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