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Indicator lights
If your printer lights look like this
when you double-click the operator
panel button:
Then your printer:
has an error communicating with the host computer (Host Interface
Error).
This error is displayed if:
• you have an external network adapter (ENA) connected to your
printer, but your printer can’t detect it when you first turn the
printer on, or
• the computer attempts to communicate with the printer through
the parallel port, but the port setting has been disabled in
configuration mode, or
• the computer attempts to communicate with the printer through
the USB port, but the port has been disabled in configuration
mode.
• If this error occurs when you turn on the printer, double check that
the ENA is still plugged in to the printer.
• If you want to print through the parallel port, print a menu settings
page (see ”Printing a test page” on page 11) to verify that the
parallel buffer setting is disabled. Re-enable the parallel port in
configuration mode (see page 63).
• If you’re printing through the USB port, print a menu settings page
(see ”Printing a test page” on page 11) to verify that the USB
buffer setting is disabled. Re-enable the USB port in configuration
mode (see page 70).