1. Switch the machine off.
  2. Open the front doors.
  3. Before replacing the developer, you must clean the doctor blade and the development roller. (Cleaning Doctor Blade, Development Roller Cleaning)
  4. Set hole [A] of the toner bottle on the boss [B].
  5. Push the bottle in until you hear it click.
  6. With the front doors still open, turn the machine on.

  7. Enter the SP mode and do SP3022-001 to start draining the developer.

    • The developer requires about 150 sec. to drain completely.
    • If the operation fails, the machine will alert you with a message. Do SP3023-001 to check the result, and then repeat from Step 3.

  8. The machine will alert you when the operation is finished.
  9. Switch the machine off. Remove the bottle, and then re-attach its seal to prevent spillage.

  10. Remove the old development unit, and replace it with the new unit.

    • Do not re-attach the front edge cover.