45530603TH Rev.2
4-87
Oki Data CONFIDENTIAL
4. TROUBLESHOOTING PROCEDURE
4.5.4 Network troubleshooting
(1) Printing/communication is not available.
Check item
Check work
Actions to be taken
at NG
(1) Check the LINK lamp
Check if the LINK
lamp (green) is
illuminating or not.
Check if the HUB and a printer are connected
normally. (Check that the network cable is
connected normally.)
Re-connect the
network cable
normally.
Confirm that the straight network cable is
being used.
Replace the
cable with the
straight cable.
Make an attempt to change connection of the
network cable to other port of a HUB.
Try to change the
HUB.
(2) Check the network information
Check if the
network information
can be printed
normally or not.
Operate the panel (Print Printer Information
Network Print) and print out the network
information.
(3) Check contents of the network information.
Confirm the IP
address, subnet
mask and gateway
address.
Confirm the IP address, subnet mask and
gateway address that are printed on the
network information.
If the IP address in use was manually set,
check that the IPv4 address doesn’t coincide
with that of another device.
If the IP address in use was automatically
assigned, check that the IPv4 address has
not been changed.
Set the IP
address, subnet
mask and gateway
address normally.
(4) Check if communication is possible or not through network
Confirm if the Ping
command can be
sent or not from a
PC to a printer.
Confirm if correct reply is returned from a
printer to a PC when the PC sends the Ping
to a printer.
Set the IP
address, subnet
mask and gateway
address normally.
(5) Check the Utilities.
Check setting of the
OKI LPR Utilities.
Check the setting items of the OKI LPR
Utilities.
Set the OKI LPR
Utilities setting
items correctly.
Check item
Check work
Actions to be taken
at NG
(6) Check the following from an OS standard port
Confirm the
WINDOWS
standard port.
Set the WINDOWS standard port and check if
printing can be performed or not.
Set the
WINDOWS
standard port
correctly.
(7) Check protocols.
Check the protocols
used for printing.
When NBT is used for printing, check if the
sleep mode is disabled or not.
Disable the sleep
mode.
When EtherTalk is used for printing, check if
the sleep mode is disabled or not.
Disable the sleep
mode.
When WSD Print is used for printing, check if
the sleep mode is disabled or not.
Disable the sleep
mode.
(8) Check the printer driver.
Check the printer
driver.
Check that printing is available by using the
printer driver.
Delete the printer
driver and install
a printer driver
again.
(9) Check for communication from another computer.
Check for
communication
from another
computer.
Confirm that another computer also cannot
communicate with the printer.
If another
computer
can normally
communicate
with the printer,
disable the
security software
of the computer
in question
and then try to
communication.