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: Ensure most recently printed label is removed. Also ensure 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.
•Ensure 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 (Printers with WLAN radios 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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QL Series User Guide