A&D 191 - Manual (Page 7)

This will facilitate the entry of the paper into the
printer.
5. Slide the paper through the slot connecting the paper
compartment and the printer compartment. You can
slide it in about one-quarter inch before it stops.
6. While holding the paper in place, press the rocker
switch to the Paper Feed position. The printer will
activate, and a rubber roller will pull the paper into the
printer compartment. Hold the switch in the Paper
Feed position until the paper emerges from the top of
the printer mechanism.
7. When an inch of paper has emerged from the top of
the printer, release the Paper Feed button.
8. Now pull the paper through the printer, until several
inches are exposed.
9. Slide the paper through the slot in the printer cover.
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