Replacing Printheads - Novexx ALX 924 User Manual

ALX 92x
User Manual

Replacing printheads

The printhead can only be replaced as a complete unit
as shown in [67A].
WARNING!
Burn hazard! The printhead can become
hot during operation.
 Be careful whenever touching the
printer.
1. Switch off the machine.
2. Remove the mains power connecting line.
3. Remove the material and ribbon.
4. Pull out both plugs on the printhead [65].

After switching off machine, wait at least 3 min-
utes before unplugging the printhead cable.
5. Remove both wing bolts until the entire printhead
can be removed from the pressure shaft.

If the printhead is not at the limit stop on the
side, mark the position on the axle in advance.
6. Install the new printhead at the former position and
retighten the wing bolts.
Factory set printhead position: at the limit stop on
the inside (black plastic bushing).

The wing bolts must press against the chamfer
of the square axle.

Pay close attention to the position of the print-
head in relation to the edge of the label (to the
marking or up to the limit stop).
7. Plug the printhead cables back into the printhead.
Continued on next page.
8. The resistance of the new printhead can be entered
using the SYSTEM PARAMETER > Head resistance
rameter.

The resistance is given on the printhead sticker
[67B].
CAUTION!
Entering the wrong resistance can
damage the printhead!

Enter the resistance that is applied
against the installed printhead.
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[65] Pull out the connection cables.
[66] Remove the printhead.
pa-
B
[67] Printhead (A) with resistance identification (B); in this case:
1221 Ohm.
78
A
Cleaning & Maintenance