Troubleshooting
This section contains troubleshooting charts used to localize and repair
the printer when faults occur. The procedures called out in the
ACTION column may be performed by the operator or by a service
technician when indicated.
SYMPTOM DIAGNOSIS ACTION
All indicator lights never light. No AC Power applied to the
printer.
Ensure that the AC power cable is con-
nected to a working voltage source.
Faulty AC power fuse. Refer to Installation for fuse replace-
ment procedures.
No voltage available from the
internal power supply.
Call a service technician.
Printer locks up when running
Power-On Self Test.
An improper configuration was
set.
Reload factory defaults. Then, set cor-
rect parameters. See Operation.
POWER light ON, other lights
all OFF or all ON and the
printer locks up.
ROM CRC test has failed. Call a service technician.
CALIBRATE light is OFF but
all other lights are ON.
Dynamic RAM failed. Call a service technician.
CALIBRATE light and
POSITION light OFF but all
other lights ON.
FONT ROM error. Call a service technician.
PRINTHEAD light is ON,
printing continues.
Printhead under-temperature
condition.
Wait until printhead warms up. If con-
dition persists and print quality is af-
fected, move printer to a warmer
environment. If print quality is accept-
able, no action is required.
Printer stops. PAUSE light and
PAPER/RIBBON light both
ON.
Media incorrectly loaded or not
loaded.
Load media correctly. See
Media Load-
ing
in Installation.
Misadjusted Media Sensor.
Media not calibrated.
Check position and sensitivity of Media
Sensor and/or calibrate media. See
Adjustments and Configuration and
Calibration.
Zebra S-Series User’s Guide 8-1
75
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