Printhead Pressure Adjustment - Datamax ?-class series Maintenance Manual

2.5 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-inch (102 mm) wide media and ribbon.
2. Ensure the Media Width Adjustment is disengaged (its left-most position); see Section 2.3.
3. Print a test label.
Non-Display models: Simultaneously press the
Display-equipped models: Select a Print Quality Label (see the Operator's Manual for details).
4. Turn the Printhead Pressure Adjustment Screws counterclockwise to increase the applied pressure or
clockwise to decrease the pressure. Make equal adjustments to each screw to achieve even print
contrast across the media.
Notes: 1) 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.
2) Excessive pressure can reduce the service life of the printhead and platen roller.
3) Unequal pressure may cause ribbon and label tracking problems.
Adjustments and Maintenance
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