User's Manual

Page 4
LED Indicators
There are two (2) LED indicators on the top panel - Status (Green, right) and Error (Red, left).
The LED indicator modes are described in the following table.
Status LED Error LED Status Description
Off Off No Power
On On Hardware error
On Off Normal operation (idle)
Blinking Off Normal operation - data is being transmitted or
received on the USB Printer Port.
Blinking Blinking During a Firmware Upgrade, both LEDs will blink.