Lexmark 4I3 - Manual (Page 115)

Preparing to Load Forms
To prepare to load forms in the F3 forms device, follow these steps:
1. Install one of the lower forms guides (if not already installed).
a. Place the lower forms guide in front of the forms chute so
that the tab is under the chute.
Ta b C h u te
b. Align the lower forms guide beside the blue forms
guide/forms sensor. Then slide the lower forms guide to
the left until it locks on.
2. Get cut forms that are at least 203.2 by 279.4 mm (8 by 11 in.).
Chapter 1. Setting Up the 4230 Printer 1-93