If printing is light on the
right side of label, turn the
bias adjust screw counterclockwise.
Adjusting the Print Darkness
3400, 3440, and 3600 Bar Code Label Printer User's Manual
2 To compensate for uneven print quality, turn the bias adjust screw as
shown. Adjusting the bias adjust screw causes the printhead to rest
evenly on the drive roller and results in even print quality.
3 Replace the media cover.
Use the darkness adjust control in combination with the PrintSet software
configuration tool to fine-tune the darkness of print on your labels. The
fine adjustments compensate for variations in the media ("lot to lot"), the
printhead, or the printer. Set the darkness adjust control after you enter
the media sensitivity number.
To adjust the print darkness
1 Locate the darkness adjust control on the back of the printer.
2 Use a small straight-slot screwdriver to adjust the print darkness.
• To increase the print darkness, turn the control clockwise.
• To decrease the print darkness, turn the control counterclockwise.
Chapter 5— Optimizing Printer Performance
If printing is light on
the left side of label, turn
the bias adjust screw clockwise.
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