Operating manual ALX 73x | file version 00 | 04/2011
Printhead |
8
C
LEANING
ALX
73x
GB
8. The resistance of the new printhead can be entered
using the
SYSTEM PARAMETER > Head resistance
pa-
rameter.
The resistance is given on the printhead sticker
Testing the printhead
The printer is equipped with a test function that checks
the functionality of each single dot.
Dot check with status report
Open
SERVICE FUNCTION > Head dot test
.
A status report is generated after the dot check to pro-
vide information about the number and position of any
dots that may be faulty.
Dot check with display message
Press the apply + feed keys.
Message indicating a faulty dot:
If all dots are fault-free, no message appears.
If an error message occurs, the current print job is
stopped.
Duration of the dot check
The entire check can last from 10 s to several minutes
depending on the printhead (the wider the printhead
and the more defective dots, the longer the duration) of
the check.
Interrupting the dot check
Press the feed+cut+online keys.
To cancel the dot check in situations where it is ab-
solutely necessary, reset the unit!
CAUTION!
Entering the wrong resistance can damage
the printhead!
Enter the resistance that is applied
against the
installed
printhead.
Status: 5103
Dot defective
CAUTION!
Danger of destroying individual dots on the
printhead.
Never quit a dot check by turning off the
unit!
[12] Printhead (A) with resistance identification (B), in this case:
1221 Ohm.
A
B