45762101TH Rev.1 
2-68
2. TROUBLESHOOTING PROCEDURES
2.5.9  Network Troubleshooting
(1)   Cannot print from Utility.
Confirmation Items Confirmation Tasks Action at NG
(1) Check the LINK lamp.
 Check whether LINK lamp 
(green) is lighted.  
  Check whether HUB and printer 
are connected normally. 
(Check the network cable 
connection.)  
  Reconnect  the  network 
cable normally. 
Check whether straight cable is 
used.   
Replace with straight 
cable.
Try to insert the network cable 
into different HUB port.
Try to replace the HUB.    
(2) Check the content of network information
Check IP address, Subnet 
mask,  Gateway  address.   
Print out the network information. 
Check IP address, Subnet mask, 
Gateway address.
   Set  the  IP  address, 
Subnet mask, Gateway 
address correctly.
(3) Check whether the communication on the network is normal.
 Send the Ping command from 
PC to printer to check
    Send the Ping command from PC 
to printer, and check whether the 
response is correct.
  Set the IP address, 
Subnet mask, Gateway 
address  correctly. 
(4) Check the utility
Check the settings of OKI 
LPR utility.
Check the setting items of OKI 
LPR  utility.    
Set the setting items of 
OKI LPR utility correctly.  
(5) Check the OS standard port.
Check windows (XP, Vista, 7) 
standard LPR port.
Set windows (XP, Vista, 7) 
standard LPR port, and check 
whether print is normal.
Set windows (XP, Vista, 
7) standard LPR port 
correctly.