Confidential
EPSON
TITLE SHEET
REVISION
NO
SHEETNEXT
48 47
TM-T81
Specification
(STANDARD) A
3) Errors that are impossible to recover
Table 3.8.3 Unrecoverable Errors
Error Description
ERROR LED Flashing Pattern
160 ms Recovery
R/W error in
memory or
gate array
After R/W checking, the
printer does not work
correctly.
Impossible to recover.
High voltage
error
The power supply
voltage is extremely
high.
Impossible to recover.
Low voltage
error
The power supply
voltage is extremely
low.
Impossible to recover.
CPU
execution
error
The CPU executes an
incorrect address or I/F
board is not connected.
Impossible to recover.
UIB error An abnormal operation
occurs in UIB.
Impossible to recover.
Internal
circuit
connection
error
Internal circuits are not
connected correctly.
Approximately 2.56 s
Impossible to recover.
NOTE: When any error shown above occurs, turn off the power as soon as possible.
3.8.2 Printer Operation When an Erro r Occurs
The printer executes the following operat ions when detecting an error.
• Stops all printer operations for the selected paper section.
• Goes offline.
• Goes BUSY. (See Section 3.3.3 DIP switches when DIP switch 2-1 is off.)
• Flashes the ERRO R LED.
3.8.3 Data Receive Error (only in the seri al interface specification)
If one of the following errors occurs duri ng serial interface communication, the pr inter prints "?" or
ignores the data, depending on the setting of DIP switch 1-1.
• Parity error
• Framing error
• Overrun error