Datamax E-4304, Operator'S Manual

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E-4203/E-4204/E-4304 35
The second label printed is the Dot Check Label. This label is used to
determine whether the printhead is in need of replacement. 'Good' and
'Faulty' Dot Check Labels are shown below:
Good Test Label:
Indicates that the printhead is
operating normally.
Faulty Test Label:
Streaks in test label indicate a
dirty or faulty printhead.
(See Chapter 5 for cleaning
and replacement.)