Zebra QL 320 User Manual - Troubleshooting Topics

QL 320 User’s Guide

33

Troubleshooting Topics

1. No power

• Check that battery is installed properly

• Recharge or replace battery as necessary.

2. Media does not feed:

• Be sure print head is  closed and latched.

• Check spindle holding media for any binding.

• If unit is equipped with label presence sensor:

Insure most recently printed label is removed.

Also insure label sensor is not blocked.

3. Poor or faded print or 

flashing:

• Clean print head.

• Check battery and recharge or replace as necessary

• Check quality of media.

4. Partial/missing print:

• Check media alignment

• Clean print head.

• Insure printhead is properly closed and latched.

5. Garbled print:

• Check baud rate.

6. No print:

• Check baud rate

• Replace battery

• Check cable to terminal

• Establish RF Link (Wireless units only) or restore LAN

associativity (QL 320N models only)

• Invalid label format or command structure — put printer in

Communications Diagnostic (Hex Dump) Mode to diagnose

problem.

7. Reduced battery life

• Check battery date code — if battery is one to two years old,

short life may be due to normal aging.

• Recondition battery.

• Replace battery.

8. Yellow error light or 

flashing:

• No application or application corrupted: reload program.

• If using wireless communications: flashing indicator is normal

while data is being transmitted or received.

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