Lexmark 4I3 - Manual (Page 269)

Problem: Forms buckle, twist, jam, or paper holes tear
1: The right tractor is adjusted incorrectly.
Solution: Move the right tractor to obtain the correct form width.
The tractor pins should be in the center of the paper holes. See
Chapter 1, “Setting Up the 4230 Printer” for help on adjusting the
tractor tension.
2: The forms device is installed incorrectly.
Solution: Check the forms device installation (see Chapter 1,
“Setting Up the 4230 Printer”).
3: The printer is not at the edge of the table.
Solution: Move the printer to the front edge of the table.
4: The forms tension (F1 only) is not set correctly.
Solution: Check the forms tension adjustment. See Chapter 1,
“Setting Up the 4230 Printer” for help on adjusting the forms
tension.
5: The forms supply is not aligned with the printer.
Solution: Reposition the forms supply so that the forms feed
evenly. See the information on loading and unloading forms in
Chapter 1, “Setting Up the 4230 Printer.”
6: The forms are catching on the carton edge.
Solution: Remove the uneven carton edges, or remove the
forms from the carton.
Note: As the forms reach the bottom of the box, this problem
can occur more often.
7: The ribbon is twisted or folded.
Solution: Check the ribbon for folds or twists.
8: The forms contain excessive moisture.
Solution: Store the forms in a cool, dry place before using them,
or store the forms in the printer area for 24 hours.
Appendix B. Problems B-39