Epson TM-T20II-i Technical Reference Guide

22
Unrecoverable Errors
If the same error occurs again even after turning the power back on, contact your dealer or a Epson
service center.
CAUTION
Turn off the power immediately when unrecoverable errors occur.
Error Error description Error LED flash code
Memory R/W error After R/W checking, the printer does not
work correctly.
High voltage error The power supply voltage is extremely high.
Low voltage error The power supply voltage is extremely low.
CPU execution error The CPU is executing an incorrect address.
Internal circuit
connection error
Internal circuits are not connected correctly.
LED ON
LED OFF
Approx. 160 ms
LED ON
LED OFF
Approx. 160 ms
LED ON
LED OFF
Approx. 160 ms
LED ON
LED OFF
Approx. 160 ms
LED ON
LED OFF
Approx. 160 ms
Approx. 2560 ms

Epson TM-T20II-i Specifications

General

Brand	Epson
Model	TM-T20II-i
Category	Printer
Language	English