Datamax M-Class Mark II M-4206 Operator's Manual page 53

Skips every other label
(Print quality is good, but every other label is skipped).
The label is formatted too close to the top edge of the label: Leave white space equal to 8-dot rows (about .02
inch [.5mm]) at the top of the label.
The media is not calibrated: Calibrate it (see Chapter 4).
The Media Sensor may need to be repositioned (see Chapter 3).
The media sensor or media sensor circuitry may be defective: Call for service.
Unable to print in rotation 4
The characters are formatted outside the dimensions of the label: Check that the row/column values provide
enough room for the height of the image being printed.
Prints light on the right side of the label
The media width adjustment is set for a narrower media width than is actually being used: Adjust for the
media width (see Chapter 5).
The printhead is not properly aligned: Call for service.
The printhead carrier assembly is not latched down: Latch it.
Printer fails to power on
The AC wall outlet may be faulty: Try another outlet.
A fuse may be blown: Call for service.
The power supply may be faulty: Call for service.
A defective power switch may exist on the printer: Call for service.
Label advances 1-2 inches before a fault indication
The ribbon may be incorrectly installed. Ensure that the ribbon's inked side faces the paper. With most
ribbons this can be verified by rubbing paper against the ribbon; the ink should smudge the paper. Or, if using
label stock, the sticky side of a label will pull off the ink.
A mismatched ribbon/paper combination is resulting in an insufficient amount of friction between paper and
ribbon: Ensure that the correct type of ribbon is being used with the media.
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