The printhead pressure toggles can be adjusted to create more or less pressure, as needed. They can also be moved from side to side to adjust the pressure in certain areas. Use the lowest printhead pressure necessary to produce good print quality. Higher pressures may cause premature wear on the printhead elements.
If the toggles are not positioned correctly or adjusted to apply the correct pressure, the following types of issues may result:
media and ribbon may slip
ribbon may wrinkle
media may move from side to side during printing
printing may be too light or too dark on one side of the media