EasyCoder 4420/4440 Bar Code Label Printer User’s Manual
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5-4
To adjust the bias adjust screw
1. Remove the media cover and locate the bias adjust screw.
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4420
44XXU043.eps
Bias adjust
screw
2. To compensate for uneven print quality, use a straight-slot screwdriver to turn the
bias adjust screw as shown.
Adjusting the bias adjust causes the printhead to rest evenly on the drive roller and
results in even print quality.
44XXU044 .eps
If printing is light on
the right side of label,
turn the bias adjust screw
counterclockwise.
If printing is light on the
left side of label, turn the
bias adjust screw clockwise.
3. Replace the media cover.