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Troubleshooting
RFID Problems
4/8/14 ZT400 Series™ User Guide P1066582-002
Low yields. Too many
RFID tags per roll
are voided.
The RFID labels are not within
specifications for the printer,
which means that the
transponder is not in an area
that can be programmed
consistently.
Make sure that the labels meet transponder
placement specifications for your printer. See
http://www.zebra.com/transponders for
transponder placement information.
For more information, refer to the RFID
Programming Guide 3, or contact an authorized
Zebra RFID reseller.
Incorrect read and write power
levels for the RFID tag type.
Change the RFID read and write power levels.
For instructions, refer to the RFID Programming
Guide 3.
Radio frequency (RF)
interference from another RF
source.
Do one or more of the following as necessary:
• Move the printer away from fixed RFID
readers.
• Make sure that the media door is closed at all
times during RFID programming.
The printer is using outdated
printer firmware and reader
firmware versions.
Go to http://www.zebra.com/firmware for
updated firmware.
The printer stops at
the RFID inlay.
The printer calibrated the label
length only to the RFID inlay
instead of to the interlabel gap.
1. Select FEED for the MEDIA POWER UP and
HEAD CLOSE parameters (see Power-Up
Action on page 72 or Head-Close Action
on page 73).
2. Manually calibrate the printer (see Calibrate
the Ribbon and Media Sensors on page 119).
The DATA light
flashes indefinitely
after you attempt to
download printer or
reader firmware.
The download was not
successful. For best results,
cycle power on the printer
before downloading any
firmware.
1. Turn off (O) the printer.
2. Wait 10 seconds.
3. Turn on (I) the printer.
4. Attempt to download the firmware again.
5. If the problem persists, contact Technical
Support.
Table 4 • RFID Problems (Continued)
Problem Possible Cause Recommended Solution