Head Unit - After replacement

Caution / 注意
  • After replacing the head unit, do not start the user mode until you exit this menu. If user mode is started by mistake, immediately disconnect the power cable and turn off the power.
    • When the user mode is started in a state where the ink filling is not completed, the nozzle self-diagnosis system detects nozzle missing and performs head cleaning a plurality of times, so that a large amount of ink is consumed.
    • If three consecutive heavy nozzle missing are detected during head cleaning, it is internally determined that the printhead has failed.
  • The sequence ends with error if the consumables run out during the sequence. Make sure to start over if the sequence stopped in the process.


  1. Turn the power ON.
  2. Press [Execution].
  3. Press [OK].
  4. Select the desired paper tray and paper size, and press [Execute] to print the color gradation pattern.
  5. Check the print quality after ink charge by the printed gradation pattern.

  6. Press [OK].

  7. Press [Pattern Print].

  8. Load the “Photo Quality Ink Jet paper” into the paper feeding tray where pattern printing is performed.

  9. press each setting item button to make print settings.


    the parameters that can be set are as follows.

    setting items choice
    feed tray c1, c2, c3, c4, Paper Tray
    available paper sizes a4, letter
    Check Point / チェックポイント

    select the paper tray where epson photo quality ink jet paper is set.
  10. Press [Execution] to print the adjustment pattern.


  11. Check the output adjustment pattern and determine the setting value.

    Check Point / チェックポイント

    Adjustment value judgment method

    From the printed pattern, the one with the closest gradation difference between the four blocks and the three horizontal lines is selected, and the numbers in the figure are set as the setting value.

  12. Press [Value] and enter the setting value.

  13. Press [OK] to reflect setting value.

    Check Point / チェックポイント

    If you press [Pattern Print] with all values entered, the adjustment values will be reflected.


    By executing printing as it is, output the adjustment pattern after reflecting the adjustment values.

    After the adjustment value is reflected, all the adjustment values input to the panel are cleared.  Press [Close] to end the adjustment.
  14. Press [OK] to print the check pattern.
  15. Press [OK] to complete the menu.