User`s manual

4.
Adjust the sprocket units so that they are parallel with the push
tractor sprockets. Place the paper supports evenly between the
sprocket units. (There is only one paper support on the LQ-850
and LQ-950.)
5.
Fit the holes of the paper over the tractor pins on the sprocket
units, adjusting the position of the sprocket units as necessary.
Using
the Printer Options
5-33