1. Pull out the PCDU. (PCDU Removal)
  2. The vent filter is under the flat cover on the left.
  3. Disconnect the cover at [A] and [B] (x2).
  4. Free the cover (x4).
  5. Remove the cover.

  6. Carefully, use the tip of a flat head screwdriver to free the filter [A] and then remove it. (See the note below.)

    • Work carefully to avoid damaging the sponge seal.

  7. Hold the filter over a waste bin and gently tap it with the tip of a screwdriver to remove loose developer.

    • To avoid damaging the filter mesh, never use a vacuum cleaner to clean the filter.

  8. Before you re-install the filter, check the casing where the filter was removed:
    • The area should be free of toner [A].
    • There should be no excess toner as shown at [B].
  9. If you see excess toner, use the tip of a screwdriver to lightly tap the sides of the casing so that the excess will fall down into the unit.