Adjusting the Misalignment of the Ink Landing Position (Media Gap Adjustment)

This adjusts the landing position of the ink discharged from the print heads. The landing position varies according to the print head height and the thickness of the media, so we recommend that you make corrections to suit your application.

First, print a test pattern, and then determine and enter the correction value. After entering the correction value, print a test pattern again and check the correction results.

This adjustment must be performed in the following cases.

  • When using this machine for the first time

  • When changing the media to use

  • When the print head height was changed

Procedure
  1. Set up the media.
  2. Close the front cover.
  3. Tap AP-640_Panel_Icon_MENU.
  4. Tap Media Settings - Printing Settings - Media Gap Adjustment.
  5. Tap Execute next to Printing Test.
    Printing of the test pattern starts.
  6. Check the printed test pattern, and then tap AP-640_Panel_Icon_MINUS or AP-640_Panel_Icon_PLUS to enter the H1 and H2 correction values for No. 1 and the H1 and H2 correction values for No. 2.
    Select the value that gives the least misalignment between the two lines. In the case of the following figure, select "+5" for H1 for No. 1 and No. 2 and "+4" for H2 for No. 1 and No. 2. When you cannot choose between two sequential numbers, select a value that is between them (you can set correction values in units of "0.5").

    VG2_MEDIAGAP_TESTPRINT_DETAIL

    MEMO
    • If the test pattern is difficult to see, tap AP-640_Panel_Icon_UP or AP-640_Panel_Icon_DOWN next to Media Feed to move the media to a position where it is easier to see.
    • If you want to hold the media to check the test pattern, tap Execute next to Sheet Cutting to separate the media.Separating the Media
  7. Tap Save.
    The entered correction values are saved.
  8. Tap Execute next to Printing Test.
    The test pattern is printed again.
  9. Check the test pattern to see whether the correction was successful.
    For all the correction values, check that the misalignment is minimized for the two vertical lines indicated by "" (that is, the current correction value). If the misalignment is smaller for another set of vertical lines, set the correction value again.
  10. When you have successfully performed the correction, tap AP-640_Panel_Icon_HOME to go back to the original screen.