Zebra Technologies 7030 Manuale Utente

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Maintenance
Fault Finding
100
P1003636-002
TTP 7030™ Technical Manual
10/05/2009
Fault Finding
In connection with service of the printer it is good practice to remove paper dust and lint from 
the paper path, cutter and sensor areas. Paper dust, when accumulated, may interfere with 
printer functions such as optical sensors.
To avoid smudging the paper, do not apply oil on the cutting knife.
Table 6 • Fault Finding  
Sympton
Suggest Actions
Nothing is printed when you press 
the feed-forward button in self-test 
mode, but the document is 
transported, cut and ejected.
Check that the paper roll is turned the correct way 
with thermal sensitive layer facing up. 
Check that the paper used meets the paper 
specification. See 
.
Check that the print head ribbon cable is fully 
inserted into the connectors at each end.
Paper jam
Check cutter-home switch.
Printer does not work at all
Check that the paper release lever is lowered (print 
head presses against the paper).
Check that power is supplied to the printer.
Check the function of the paper-out sensor.
Self-test prints OK, but the printer 
works strangely in normal 
operation.
Check that both ends of the interface cable are 
properly connected.
Application program might be incorrect. Contact 
system manager. 
If using the serial interface, ensure that all 
communications parameters match the PC's serial 
port configuration
No cutting
Check that the connectors for the cutting 
motor/home-position switch are fully seated on the 
control board.
Bad cutting (uneven top and 
bottom document edges).
Switch OFF printer and remove any obstructing 
paper particles in cutter and presenter modules.
Inconsistent cutter operation
Check cutter-home switch.
Paper is fed straight through the 
printer. Paper does not loop.
Check presenter sensor.
Check setting of parameter p9.
Missing print or irregular spots.
Paper may be too humid. Let it adapt to ambient 
temperature and humidity for approximately 24 
hours before use.
The paper used might not meet the paper 
specification. See 
.
White longitudinal lines in the 
printout.
Faulty print head, replace print module.