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3.6 Error Processing
3.6.1 Mechanical errors
1) Error detection
The TM-U295/U295P detects the following mechanical error states:
ù Abnormal load due to paper jams.
ù Abnormal home position error.
ù Abnormal timing error.
ù Drive circuit error.
ù Power supply voltage error (only at power-on)
The TM-U295/U295P performs as follows when it detects an error:
<Serial interface model>
ù Stops all mechanical operation.
ù Sets the DTR signal to MARK.
ù Blinks the RELEASE LED.
ù Transmits XOFF if XON/XOFF control is selected.
<Parallel interface model>
ù Stops all mechanical operation.
ù Sets the Busy signal to HIGH.
ù Blinks the RELEASE LED.
ù Sets the nFault signal to LOW.
2) Error recovery
The TM-U295/U295P recovers from an error state by turning off the power, correcting the error, and
then turning the power back on.
3.6.2 Data receive error
If a parity, framing, or overrun error occurs, the printer ignores the corresponding data or prints a
question mark (?), according to the setting of DIP switch 1-1.
EPSON
TITLE
TM-U295/U295P
Specification
(STANDARD)
SHEET
NO.
REVISION
NEXT
F
26
SHEET
25
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