Printer Operation When An Error Occurs; Data Receive Error (Only For The Serial Interface Specification) - Epson TM-T90 Specification

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3) Unrecoverable errors
Error Description
CPU execution CPU executes an incorrect
error address
R/W error in After R/W checking, the
memory or printer does not work
gate array correctly.
High-voltage The power supply voltage is
error extremely high.
Low-voltage The power supply voltage is
error extremely low.
Internal circuit Internal circuits are not
connection connected correctly.
error
UIB error An abnormal operation
occurs in UIB.
NOTE: When any error shown above occurs, turn off the power as soon as possible.

3.8.2 Printer Operation When an Error Occurs

The printer executes the following operations when detecting an error.
• Stops all printer operations. (printing, feeding, autocutting, drawer-driving, etc.)
• Goes BUSY (when the printer is set by the memory switch so that the printer goes BUSY if the
printer becomes offline.)
• Blinks the ERROR LED.

3.8.3 Data Receive Error (Only for the Serial Interface Specification)

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
EPSON
Table 3.8.3 Unrecoverable Errors
ERROR LED flashing pattern
TITLE
TM-T90
Specification
(STANDARD)
Approximately 320 ms
Approximately 5,120 ms
SHEET
REVISION
F
Recovery
Impossible to
recover.
Impossible to
recover.
Impossible to
recover.
Impossible to
recover.
Impossible to
recover.
Impossible to
recover.
NO.
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