Datamax M-Class User Manual

M-Class 83
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
PAU SE
+
FEED
buttons
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.

Datamax M-Class Specifications

General

Print Method	Thermal Transfer/Direct Thermal
Resolution	203 dpi, 300 dpi
Print Speed	6 IPS (152 mm/s)
Interface	USB, Serial, Ethernet, Parallel
Media Sensor	Reflective and Transmissive
Supported Media Types	Labels, Tags
Media Thickness	0.0025" (0.0635 mm)