Unrecoverable Errors - Epson TM-P20 Technical Reference Manual

Unrecoverable Errors

Printing is no longer possible when unrecoverable errors occur. If the same error occurs again even after
turning the power back on, contact your dealer or a Epson service center.
Immediately turn off the power and remove the battery when unrecoverable errors occur.
CAUTION
Error
Internal circuit Internal circuits are not connected
error correctly.
R/W error in After R/W checking, the printer does
memory not work correctly.
High voltage The power supply voltage is high.
error
Overload error The temperature of the print head
or battery is extremely high or low.
CPU execution The CPU is executing an incorrect
error address.
Wireless Wireless communication does not
communication work correctly or the wireless com-
unit error munication unit is disconnected.
Error description Error LED flash code
LED ON
LED OFF
Approx. 5.12 s
LED ON
LED OFF
Approx. 320 ms
LED ON
LED OFF
Approx. 320 ms
LED ON
LED OFF
Approx. 320 ms
LED ON
LED OFF
Approx. 320 ms
LED ON
LED OFF
Approx. 320 ms
Chapter 1 Product Overview
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