Datamax M-Class Mark II Series User Manual

Chapter 5 – Maintenance and Adjustments 48
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If print quality declines (symptoms include non-compliant bar codes, print dropouts, and streaks;
see sample label below), the typical cause is debris build-up on the printhead. Furthermore, when
the build-up is not removed it may lead to element failure, greatly reducing the service life of the
printhead.
Faulty Print Quality Label:
Streaks indicate a dirty or faulty
printhead.
To clean the printhead:
1. Turn ‘Off’ and unplug the printer.
2. Open the cover. Unlock the Printhead Latch and raise the Printhead Assembly. Allow the
printhead to cool before proceeding.
3. Move media and ribbon away from the printhead as necessary.
4. Using a Cotton Swab moistened, not soaked, with isopropyl alcohol gently wipe away any
build-up on the printhead surface, paying close attention to the Burn Line. Allow the printhead
to dry.
5. Replace the ribbon and media. Lower the Printhead Assembly back to the locked position.
6. Close the cover. Plug in and turn ‘On’ the printer. Feed several labels to normalize tracking.

Printhead Latch

Printhead Assembly

Cotton Swab

Datamax M-Class Mark II Series Specifications

General

Memory	16 MB DRAM, 8 MB Flash
Operating Temperature	40°F to 95°F (4°C to 35°C)
Print Method	Thermal Transfer/Direct Thermal
Resolution	203 dpi, 300 dpi
Print Speed	152 mm per second
Interfaces	USB, Serial
Optional Interfaces	Wireless 802.11b/g
Media Sensor	Reflective and Transmissive
Media Type	Labels, Tags, Tickets
Media Width	19 to 118 mm
Media Thickness	0.0025 to 0.0100 inches (0.0635 to 0.254 mm)
Ribbon Width	1.0" (25.4 mm) to 4.09 inches (27 to 104 mm)
Ribbon Length	1968' (600 m)
Storage Temperature	-4°F to 122°F (-20°C to 50°C)
Max Print Length	99 inches (2514 mm)