Network Troubleshooting - Oki C911 Maintenance Manual

Oki Data CONFIDENTIAL

4.5.4 Network troubleshooting

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