Epson TM-U220A User Manual

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EPSON
TITLE
SHEET
REVISION
NO.
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A
TM-U220A
Specification
(
For Ar
g
entina Fiscal
)
34 33
3) Unrecoverable errors
Table 3.5.3 Unrecoverable Errors
Error Description ERROR LED flashing pattern Recovery
R/W error in
memory
After R/W checking,
the printer does not
work correctly.
A
pproximately 160 ms
Approximately 2.56 s
Impossible to
recover.
CPU execution
error
CPU executes an
incorrect address.
Approximately 2.56 s
Impossible to
recover.
High voltage
error
Power voltage is
extremely high.
Approximately 2.56 s
Impossible to
recover.
Low voltage
error
Power voltage is
extremely low.
Approximately 2.56 s
Impossible to
recover.
Print head
temperature
detection circuit
error
Abnormality in the
print head
temperature.
Approximately 2.56 s
Impossible to
recover.
NOTE: If an error that cannot be recovered occurs, turn off the power as soon as possible.
3.5.2 Operation when an error is detected
The printer executes the following operations when detecting an error:
<Serial interface model>
• Stops all mechanical operations.
• Sets the DTR signal to MARK.
• Flashes the ERROR LED
• Transmits XOFF if XON/XOFF control is selected.
<Parallel interface model>
• Stops all mechanical operations.
• Sets the Busy signal to HIGH.
• Flashes the ERROR LED.
• Sets the nFault signal to LOW.
3.5.3 Data reception error
If any of the following data reception errors occur during serial interface communication, the printer
prints “ ? ” or ignores the data, according to the setting of DIP switch.
• Parity error
• Framing error
• Overrun error

Epson TM-U220A Specifications

General

Brand	Epson
Model	TM-U220A
Category	Printer
Language	English