Specifications

Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET NEXT
D
TM-U230
Specification
(STANDARD)
61 60
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.
• Blinks the ERROR LED
• Transmits XOFF if XON/XOFF control is selected.
<Parallel interface model>
• Stops all mechanical operations.
• Sets the Busy signal to HIGH.
• Blinks 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, based on the setting of DIP switch 1-1.
• Parity error
• Framing error
• Overrun error