Datamax Allegro 2 - Manual (Page 69)

Troubleshooting
Allegro2
61
4.2 Aligning the Printhead
Components used for Printhead alignment are illustrated in
Figure 4-1.
Direct-Thermal Stock:
For best results when using direct-thermal label stock, turn the
head adjust screws (Figure 4-1), 1/4 turn clockwise to move the
Printhead 0.006" (0.15mm) back on the roller. When the
Printhead is aligned with thermal-transfer stock the Printhead is
forward on the roller so that the ribbon will separate from the
label while the wax ink is still liquid ensuring good print quality.
With direct-thermal stock, the Printhead burn line needs to be
further back on the roller where there is more contact with the
roller. This causes heat to transfer to the paper more efficiently.
Tag Stock or Stiff Media:
The Printer is adjusted at the factory using 5 mil (.005") thick
label stock. If heavier tag stock is used, the Printhead may need
to be adjusted forward.
Mechanical Adjustments:
The Printer’s Printhead is precisely positioned on mount plate
locating pins that are adjusted at the factory. Once adjusted, the
locating pins will ensure correct alignment of all future
replacement heads. It should not be necessary to realign each
new Printhead; however, the following alignment procedure is
required if the Printhead mount assembly has been removed or
disassembled .