Lexmark 4I3 - Manual (Page 86)

10. If you adjusted the load position, press Set Top of Form to keep
the load position consistent with the top of form position.
Pressing Set Top of Form establishes the first print line at which
printing is to start on each form. The alarm beeps each time you
press the Set Top of Form key and the printer displays
11. Close the access cover. Then close the paper door by pulling it
out and pushing it down until it latches.
Note: If you load forms on the tractors before turning on the
power, the printer will automatically load forms to the load
position.
TOP OF FORM SET
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