Datamax W-Class Maintenance Manual page 26

 Raise the Printhead Assembly. Locate and note the Printhead Resistance Value (this location differs
slightly depending upon the printer model).
W-6208 and W-6308 models:
W-8306 models:
 After ensuring that media is loaded, latch the Printhead Assembly in the down position. Plug in and
turn 'On' the printer.
Adjustments and Maintenance
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