VeriFone VX520 Contactless/ NON-Contactless: Darken Printing

  1. Press F2 and F4 at the same time
  2. Prompt for the password and key in 1 alpha alpha 66831
  3. In system mode, press 1 for Edit Parameters
  4. Press ENTER to select Group 1
  5. Prompt for the password and key in 1 alpha alpha 66831
  6. Press ENTER at “File: CONFIG.SYS”
  7. Press 1 to add a New Parameter
  8. Key in the name of the parameters * 3 alpha 2 alpha 7 alpha alpha 5 alpha alpha (*DARK) and press Enter
  9. Key in the value which should be 5 for optimal output and press ENTER
  10. Press the red CANCEL button to return to the Verix Terminal MGR menu
  11. Press 3 for Restart