Lexmark 4I3 - Manual (Page 199)

8. If necessary, load or reload forms (see the appropriate section in
Chapter 1, “Setting Up the 4230 Printer,” depending on your
forms device).
9. Be sure that the power is On (|).
10. If there is data in the printer to be printed:
a. Leave the access cover open.
b. Press Start.
c. Observe the printer as it prints.
Note: If your printing results in partial characters, be sure
that the ribbon guide is correctly in place on the print head
and no folds are in the ribbon.
d. When printing is satisfactory, close the access cover and
continue with your print jobs.
You have completed installing a ribbon cartridge. If you have any
printing problems, see Appendix B, “Problem Solving” to determine
the probable cause.
Chapter 4. Replacing Your Ribbon 4-9