Unrecoverable Errors - Epson TM-U220-i Technical Reference Manual

Unrecoverable Errors

If the same error occurs again even after turning the power back on, contact your dealer or a Epson
service center.
Turn off the power immediately when unrecoverable errors occur.
CAUTION
Error
Memory R/W error
High voltage error
Low voltage error
CPU execution error
Internal circuit
connection error
Error description
After R/W checking, the printer does not
work correctly.
The power supply voltage is extremely high.
The power supply voltage is extremely low.
The CPU is executing an incorrect address.
Internal circuits are not connected correctly.
Chapter 1 Product Overview
Error LED flash code
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
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