Lexmark 4I3 - Manual (Page 92)

Adjusting the Print Quality
After the printer prints a few lines, press Stop and verify that the
print quality is satisfactory. Good print quality includes:
Clear, legible print
Satisfactory darkness or lightness of output.
It is up to you to decide if the print quality is satisfactory.
Adjustments you can make that affect print quality include:
Tractor Tension
Incorrect tension on the right tractor can cause the paper holes
on the forms to tear, wrinkle, or jam in the printer. To adjust the
tractor tension, see “Adjusting the Tractor Tension” on
page 1-71.
Forms Thickness Setting
This setting can affect the darkness or lightness of output.
The printer will normally sense the forms thickness and adjust
itself automatically. However, if this setting is not correct, it can
be adjusted. To adjust the forms thickness, see “Adjusting the
Forms Thickness Setting” on page 1-73.
Note: The Automatic Forms Thickness Adjustment (AFTA)
mechanism automatically measures the forms thickness and
adjusts the gap from the print head to the platen rod based on
the measured value. See “Automatic Forms Thickness
Adjustment (AFTA)” on page 3-8 for information on how the
4230 Printer sets the forms thickness.
Left Margin and Top of Form Position
The adjustment of the first print position can affect the
appearance of the output, especially if you are using preprinted
forms. To adjust the position of the first print character, see
“Adjusting the Left Margin” on page 1-75. To adjust the position
of the first print line, see “Adjusting the Top of Form Position” on
page 1-77.
1-70 User’s Guide