23
cab - Produkttechnik GmbH / Tharo Systems, Inc.
When printing narrow label stock (width less than 2.5" or 60 mm), it is possible that
the printhead will come into direct contact with the drive roller. This will lead to
premature wear on the printhead. In addition, the printhead will be at a slight angle
to the label, and this uneven pressure may result in an inconsistent image density
from one edge of the label to the other. To correct this problem, the printhead
support (
4
) should be adjusted.
Adjust the printhead support as follows:
1. Loosen the locking screw (
2
).
2. Move the locking screw (
2
) as required within the adjustment slot (
3
). This will
cause the cam shaped printhead support (
4
) to rotate, in effect, providing a
higher or lower base on which the printhead mounting (
1
) rests.
3. When using wide labels, start with a setting of "2a"; this places the printhead
support at its' lowest position, providing the most complete contact of the
printhead to the drive roller along the entire width. When using very narrow
labels, a setting of "2b" is recommended; this places the printhead support at
its' highest position, reducing contact of the printhead with the drive roller at the
outside edge.
At the adjustment criterion, check the quality of the print image.
4. Retighten the locking screw (
2
).
7. Adjustments Concerning the Labels
Adjustment of the Printhead Support
1
4 2b 3 2a
Figure 7 a Adjustment of the Printhead Support
