IBM 3 User Manual page 259

17. Move the spacers along the tractor bar to support the width of the
form.
18. Reach under the front tractor cover and gently align the forms making
sure they are straight.
19. Press Micro until the mark on the perforation (see step 8 on page 246)
is between the mylar strips. Push the ribbon aside at the left to help see
the alignment mark.
Chapter 17. Setting Up Forms Paths
249