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2. Tunnel communication 
 
2.1 Overview 
Tunnel communication is a function that employs a LAN environment to input 
communication from external unit of the same contents as RS-232C serial  
communication to an IJ Printer connected to a network. 
The transmission contents as the same as RS-232C serial communication. 
Please refer to “1.1 Overview” in this manual for the types of communications. 
 
① Only one external device can  be connected. 
② The response time for the inquiries may vary depending on the network 
environment. 
 
2.2 Preparing Tunnel Communication 
(1) Preparing Network Connection 
Prepare a LAN cable to connect the IJ Printer to an external device.  
For connection, refer to Communication User’s Manual (Common) for details. 
(2) Set Communication environment  
Set “Tunnel Communication” to LAN function of LAN communication on Communication environment 
setup screen.