1. Remove the PCDU. (PCDU)
  2. Remove the front faceplate [A].*

    * Pro C5200S/C5210S use TCRU/ORU screws
  3. Remove the stopper [A] at the rear.*

    * Pro C5200S/C5210S use a TCRU/ORU screw
  4. Slide the bracket [A] to the rear.

  5. Remove the drum cleaning unit [A].

    • When installing the drum cleaning unit, ensure that the front side [A] is fit into the grooves [B] of the development unit.
    • After removing the drum cleaning unit, lubricant and toner streaks [B] remain on the surface of the OPC drum [A]. This will cause stains on the charge roller. Therefore, rotate the OPC drum in the direction of the arrow [C] before you install the new drum cleaning unit.
    • Attach the drum holders [A] to the OPC drum (these are shipped with the cleaning unit) so that the drum rotates precisely on its axis. Make sure the drum holders [A] are inserted all the way in.
    • After replacing or removing the drum cleaning unit, clean the toner receptacle [A].