Printhead Pressure Adjustment - Datamax M-Class Operator's Manual

6.4 Printhead Pressure Adjustment

To accommodate a variety of media types, the pressure applied by the printhead assembly is adjustable. This pressure is
factory set to work with most media types, so this adjustment should only be performed after attempting to improve print
quality through the use of the (1) heat and/or (2) print speed. When adjusting, use only the minimum pressure necessary for
better imaging. To adjust:
1. Load at least 4" (102mm) wide media and ribbon, see Section 3.2.
2. Ensure the Media Width Adjustment is set to its "left most" position, see Section 6.2.
3. Print a test label.
Non-display printers:
Simultaneously press the
Display printers:
See Section 5.3.1
4. Turn the Printhead Pressure Adjustment Screws counterclockwise to increase the applied pressure or clockwise to
decrease it. Make equal adjustments to each screw to achieve even print contrast across the media.
Note: When using narrow media it is sometimes necessary to increase the pressure on the inner (closest to
centerplate) Printhead Pressure Adjustment Screw to prevent ribbon smudging.
Note: Excessive pressure can reduce the service life of the printhead and platen roller.
Unequal pressure may cause ribbon and label tracking problems.
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