Lexmark 4I3 - Manual (Page 136)

Removing the Document Insertion Device (F3)
Note: If you are removing this forms device to install a different
forms device, make sure you change the selected forms device in
the Configuration Menu.
To remove the F3 forms device, follow these steps:
1. If forms are in the printer, unload them (see “Unloading Forms”
on page 1-113); then continue with Step 2 of this procedure.
2. Turn the power Off (O).
3. Open the access cover. Then open the front paper door as
follows:
a. Pull the door up until it will not go any higher.
b. Push the door back slightly to lock it in the open position.
A c c e s s C o v e r
P a p e r D o o r
1-114 User’s Guide