Lexmark 4I3 - Manual (Page 208)

7. Press Cancel Print to exit the test and make the printer ready.
Press Stop to exit the test and return to the Test Menu (see
“General Test Instructions” on page 5-1).
Note: If you want the new left margin position saved when you turn
off the printer, you must save it in a Custom Set. See
“Storing Configuration Parameters” in IBM 4230 Printer
Models 102, 1I1, 202, 2I1, 4I3, and 5I3 Operator Panel
Instructions for information on saving configurations.
You may also adjust the left margin without printing the row
of H’s by changing the left margin position in the
Configuration Menu. (See “Using Print Format and Quality
Parameters” in IBM 4230 Printer Models 102, 1I1, 202, 2I1,
4I3, and 5I3 Operator Panel Instructions.)
5-8 User’s Guide