1. Turn the main power ON.
  2. Enter the SP mode, input the appropriate number for SP2-400-001 (NV Clear at Head Replacement) and execute it.
    • Input "1" when replacing H1.
    • Input "2" when replacing H2.
    • Input "4" when replacing H3.

    When replacing multiple heads, input the sum of the numbers. For example, when replacing H1 and H3, the number to be inputted is 5 (1+4=5).

    The air purge time change flag (SP2-270-***) for the print head you specify will be "1".

  3. Press the [Maintenance] key.
  4. Press [Special Maintenance].
  5. Press [Air Purge].
  6. Select a print head to be performed from [Head 1], [Head 2], or [Head 3].
    When the air purge maintenance is completed, the value of SP2-012-001, which has been changed in step 2 of "Work before Replacing the Print Head Unit", will be changed to "0".
  7. Repeat steps 3 through 6 until the damper is filled with ink. Make sure you visually check the damper.
    [A]: OK
    [B]: NG