Printhead Burn Line - Datamax H-Class H-6 Series Maintenance Manual

2.2.2

Printhead Burn Line

The Printhead Burn Line adjustment changes the position of the thermal element row that creates the
image on the media. Factory adjusted using 6.5-mil media to ensure compliance on most labeling stocks,
first try the suggestions in the Operator's Manual if print quality is unacceptable (also, consult the
Troubleshooting section of this manual for other possible causes). If those suggestions fail, a Burn Line
adjustment may be required, especially when thicker or more rigid stock is being used (for example,
heavy tag media). Adjust the Burn Line as follows:

This adjustment is normally NOT REQUIRED following printhead replacement.
1. Load media (and ribbon, if thermal transfer printing). Disengage the Leveling Cam (see Section
2.2.1).
2. Rotate the two Locking Screws counterclockwise one turn.
3. Rotate the two Burn Line Adjustment Screws counterclockwise three to four turns.
4. Select the VALIDATION LABEL from the TEST Menu (see the Operator's Manual for details), and
queue a batch of thirty or more for printing. Print one VALIDATION LABEL and examine it -- the print
should be light and uneven.
5. Rotate the two Locking Screws clockwise until 'snug' (that is, tight enough to remove any play, yet
loose enough to allow the Burn Line Adjustment Screws to move the printhead assembly).
Mantenimiento Periféricos Informáticos C/Canteras,15 28860 Paracuellos de Jarama Madrid Tel: 91 748 16 04 www.mpi.com.es
Adjustments and Maintenance
Locking Screws
Burn Line
Adjustment Screws
2-14