Troubleshooting Topics

1.No power

•Check that battery is installed properly

•Recharge or replace battery as necessary. (Always dispose of used batteries properly. Refer to Appendix D for more information on proper battery disposal.)

2.Media does not feed:

•Ensure Media Cover is properly closed and latched.

•Check media supports for any binding.

3.Poor or faded print or flashing icon:

•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 Media Cover is properly closed and latched.

5.Garbled print:

•Check baud rate.

6.No print:

•Check baud rate.

•Replace battery. Always dispose of used batteries properly. Refer to Appendix D for more information on proper battery disposal.

•Check cable to terminal.

•Wireless units (Bluetooth or 802.11b) only: Establish RF Link. Restore LAN associativity on 802.11b wireless units.

•Invalid label format or command structure — put printer in Communications Diagnostic (Hex Dump) Mode to diagnose problem (refer to Troubleshooting Tests section).

7.Reduced battery life

•Check battery date code — if battery is one to two years old, short life may be due to normal aging.

•Replace battery. (Always dispose of used batteries properly. Refer to Appendix D for more information on proper battery disposal.)

8.Flashing icon:

•No application or application corrupted: reload program. •Flashing indicator is normal while data is being received.

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RW 420 User Guide