Epson C82332 - Manual (Page 23)

Ethernet Card Operation
The LED lights and the status sheet function can provide you with
important information about the operation of the Ethernet Card.
Lights
This section describes the Ethernet Card indicator light behavior,
including when you first turn on the host printer, during normal
conditions, and when errors occur. The Ethernet Card has two
LEDs (red and green) that together indicate the current operating
status of the Ethernet Card, and one LED that shows data
transmission.
Status lights Data Transmission light
0+
l 0
Here is a brief explanation of indicator light activity
Red Green Function
Waiting for printer initialization
(lights flash simultaneously)
Recognizing the network
(lights flash alternately on and off)
Normal operating mode
Error has occurred
On Off Flashing
1-4 Installing the Ethernet
Card