User`s manual

Note: For normal use, set the paper thickness lever to position 2
on the scale.
If you have installed the optional film ribbon cartridge, and you
want to use the single sheets or continuous paper, set the paper
thickness lever to position 1.
The following table gives you general guidelines for selecting the
right paper thickness lever position for the type of paper you are
using:
Note: If the lever is set to position 4 or higher, the printing speed may be reduced
slightly.
2-26 Paper Handling