Serial and parallel communication problems, Ethernet communication problems, Troubleshooting – GCC Printers Elite XL User Manual

Page 152

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Maintenance and troubleshooting 7-5

Serial and parallel communication problems

If the Elite XL does not print, there may be a problem with the setup or
configuration. Check the following:

Check the On Line status LED on the front panel; it should be solid.

Check the front panel display window for an error message.

If you are using the RS-422 serial interface, verify that the 8-pin Serial
submenu item is set to RS-422. Restart the printer. The front panel should
indicate that the printer is Ready. Also verify the RS422 Serial submenu
item settings, they should match the settings in the Windows Settings box
available from the Connect box of the Printers control panel.

Check all connections following the instructions on page 1-22.

Verify that your Windows software and/or your DOS application software
is configured to print to the correct port on the computer.

For DOS printing, make sure the correct MODE are in your
AUTOEXEC.BAT file.

For PostScript printing, make sure that the Elite XL printer driver is
selected.

Ethernet communication problems

When you connected the Elite XL to an Ethernet cabling system, the printer
should have been switched off to avoid connection problems. Before continuing
with these troubleshooting procedures, switch the printer off, wait ten seconds,
and then switch the printer on.

If your Elite XL is connected to a 10BASE-2 network the COAX LED
(closest to the BNC connector) should be solid. If the LED is not solid:

Verify that a UTP (unshielded twisted-pair) cable is not connected to the
UTP connector. (The Ethernet adapter will acknowledge the UTP connec-
tion instead of the coax connection.)

Verify that the Ethernet cable has a 50 ohm terminator connected at each
end.

Verify that the Ethernet cable is not connected in a loop configuration.
The cable should be connected as a “linear bus” in which one piece of coax
cable is connecting all the nodes.

If your Elite XL is connected to a 10BASE-2 network, the UTP LED
(closest to the UTP connector) should be solid. If the LED is not solid:

Verify that the printer is connected to a UTP hub on the other end.

Verify that the cabling is correctly constructed. The cable should be
constructed with a data grade twisted-pair 2-pair, 3-pair, or 4-pair cable.
There should be at least six twists per foot. Do NOT use straight 25-pair or
50-pair phone cables (this cable does not meet the criteria set for UTP
cables, and will cause communication errors).

Troubleshooting

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