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b. Select 4 Communications and press Enter.
The External Loopback Test screen appears as shown in Figure 4-11.
Select a port on the system.
Check here for results.
2. Select the appropriate port and press Enter.
NOTE:ĄĂAttach the loopback connector to the cable matching connector, if
your cable requires one.
3. Attach the loopback connector as follows.
the 800 system a. Remove the cable from the port on the 800 system.
b. Attach the loopback connector to the port.
the cable between the
800 system and the
external device
a. Remove the cable from the port on the external device.
b. Attach the loopback connector to the end of the cable.
4. Press Start Test.
5. Check the screen for the message, Port_acceptable, to verify that the port
passes the test.
6. Remove the loopback connector and reconnect the external device to that port.
7. Press
Exit Test.
Use this procedure to test the ability of the roll printer to print all characters in the
character set. Failure of the roll printer to print the entire character set indicates a
problem with the printer assembly, the printer interface, or the printer assembly
cables.