ℹ
info Epson
Status Power button and light
Indicates the product is powered off or on, depending on lighting pattern.
? What Causes This
Switching between operational and standby modes.
ⓘ What This Means
No action required based on normal usage. Light turns green for power-on state; remains dark when powered off.
Source: page 19 of the official manual
From the manual
This error code appears in:
Epson ET 2850