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CX400 User Guide
PN 9001107 Rev. A Page 17
• Others: If you are using the serial communication check the
parameters on both the printer and the host.
Self-test label will not print
1. If printing in the direct thermal mode, confirm that you have
loaded direct thermal media.
2. Disconnect the cable between the printer and the host computer.
Restart the printer and try to print a self-test label again.
Label will not feed
1. Confirm that the print media is loaded correctly.
2. Restart the printer and confirm that the printer POWER indicator
is lit and ERROR indicator is off. Press the FEED button.
3. If the printer still does not feed, disconnect the communication
cable and repeat step 2. If the printer feeds with the cable discon-
nected, suspect a problem with the host computer or cable.
Host stops responding or displays “printer not ready” message
1. Review your software setup, following the instructions provided
with the software.
2. Confirm that the host-to-printer communication cable is con-
nected and undamaged. If using the serial port, confirm that you
are using a null modem cable or adaptor.
3. If using the serial port, confirm that the host and printer are using
the same parameters. The self-test label shows the current printer
serial port parameters.
4. If using a communication switch between the host and printer,
remove the switch and connect the printer directly to the host.
5. Restart both printer and host, run the original software, and try
again.
Labels feed continuously
1. Check that the print media is loaded correctly. Confirm that the
gap/mark goes through media sensor.