!
error Epson
Error Code Service Req. (All lights flashing)
An error has occurred in the printer.
? What Causes This
General printer error or malfunction.
✓ How to Fix It
Note the error number, turn the printer off and then on. If the message remains, contact EPSON technical support.
Source: page 162 of the official manual
From the manual
This error code appears in:
Epson Printer