Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
E
72 71
TM-L90
Specification
(STANDARD)
3) Unrecoverable errors
Table 3.11.3 Unrecoverable Errors
Error Description
ERROR LED Flashing Pattern
Approximately 320 ms
Recovery
CPU execution
error
CPU executes an incorrect
address.
Impossible to
recover.
R/W error in
memory or
gate array
After R/W checking, the
printer does not work
correctly.
Approximately 5,120 ms
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.
Internal circuit
connection
error
Internal circuits are not
connected correctly.
Impossible to
recover.
UIB error An abnormal operation
occurs in UIB.
Impossible to
recover.
NOTE: When any error shown above occurs, turn off the power as soon as possible.
3.11.2 Printer Operation When an Error Occurs
The printer executes the following operations when detecting an error.
• Stops all printer operations (printing, feeding, autocutting, or drawer driving).
• Goes BUSY (When the BUSY in offline is set for the conditions for BUSY with the memory switch)
• Flashes the ERROR LED.
3.11.3 Data Receive Error (Only for the Serial Interface Model)
If one of the following errors occurs during serial interface communication, the printer prints "?" or
ignores the data, depending on the setting of the memory switch.
• Parity error
• Framing error
• Overrun error