Chapter 4 Troubleshooting
4-4
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Troubleshooting Network Hardware
●
LED Status Indicator
The network controller has two LED status indicators: amber and green. The amber LED generally indicates
job activity; it flashes when a print job is being communicated to the Network Controller; it is off when no
activity is occurring.
The green LED indicates the operating condition of the network controller when it is powered on during nor-
mal operation. The following table provides the conditions that these LEDs indicate.
LED status Printer status Network controller status
Operating
status
Action
Green lit Immediately after main
power switched ON
Self-diagnostics executing Normal None
Waiting print job Normal operation Normal None
Green LED flashes
three times → Lights up
Self-diagnostics com-
pleted
Network setting list print Normal None
Amber flashing Waiting print job Receiving print job Normal None
Amber lit up Print job waiting/process-
ing
Normal operation Normal None
Amber off Waiting print job No print jobs Normal None
Green flashing rapidly Self-diagnostics execut-
ing
RAM chip defect detected Error Replace the system
board
Green LED flashes four
times rapidly → Goes
out
Self-diagnostics execut-
ing
Ethernet hardware self-diag-
nostics failure
Error Check the network
again
Amber LED flashes
about 10 seconds →
Goes out → Green LED
continues flashing
Flash memory self-diag-
nostics executing
Did not pass the check-sum
test
Error Execute flash
update
Green LED flashing
slowly
Power on completed,
then print job waiting
Printer interface error Error Replace the system
board
Green LED flashing rap-
idly
Print job waiting NetWare connection to file
server not possible
Error Check NetWare set-
tings
Green LED alternately
blinks with amber indi-
cator
Finished power-on
sequence
Has been reset to factory
defaults
Error Reset the settings
as described in
"Resetting the net-
work controller to
Factory Default".
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