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error Epson
Error Code # E-1
A connection error occurred — the network cable is not properly connected or devices are turned off.
? What Causes This
Network cable issues, incorrect connections to router/access point.
✓ How to Fix It
Ensure proper physical network setup; check cables and device power statuses.
Source: page 42 of the official manual
From the manual
This error code appears in:
Epson ET 2803