Chapter 8-1
Chapter
8
Operation and Troubleshooting
This chapter describes normal operation of the Network Interface Board in the printer,
and also provides information on how to troubleshoot any problems you might have with
the Network Interface Board.
8.1
LED Status Indicator
The Network Interface Board 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 Interface Board; it is off when no activity is occurring.
The green LED indicates the operating condition of the Network Interface Board when it
is powered on during normal operation. The following table provides the conditions that
this LED may indicate.
LED Patterns
And the printer
is...
Then the NIB...
Operating
Condition
Green LED is
ON solid.
First powered
on.
Is performing
self-tests.
Normal
Awaiting print
jobs.
Is functioning
properly
Normal
Green LED -
blinks 3 times
and stays on.
Finished with
self-tests.
Prints out status
report.
Normal.
Green LED
blinks rapidly.
Performing self-
tests.
Detects a bad
RAM chip.
Error. Contact
service
representative.
Green LED
blinks rapidly 4
times then
pauses.
Performing self-
tests.
Failed the
Ethernet
hardware self-
test. Check the
network.
Error. Check
the cable
connection and
restart the
printer. If this
error occurs
often, contact
service
representative.
Green LED
blinks slowly.
Awaiting print
jobs sometime
after power-on
Some printer
interface error.
Error
Summary of Contents for NIB 450-E
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