Star Micronics DP8340R user manual Connectors and Signals, Error Condition Alarm Mode

7-4.	Connectors and Signals
Pin No.		Signal	Direction	Function
		Name
1		GND	—	Shield Ground
2		GND	—	Frame Ground
3		TXD	OUT	This pin carries data from the printer.
				(Return channel)
4		RXD	IN	This pin carries data to the printer.
5		RTS	OUT	This is SPACE when the printer power is ON.
6			OUT	This is MARK when the printer is abnormal.
		FAULT		(Refer to Error Condition Alarm Mode *1.)
				Or there is a paper error.
7		GND	—	Signal ground.
8		DTR	OUT	This printer turns this pin SPACE when
				it is ready to receive data.

Figure 7-3. Modular Jack Connector

*1 Error Condition Alarm Mode

If an error condition is detected during operation, the printer will stop printing and cause the FAULT signal to go MARK. All solenoides & motors will be de-energized. It is necessary to turn the printer power off and on again in order to recover from the alarm mode.

This printer can detect the following error coditions:

a.Motor Lock

b.Defective timing detector

c.Micro-proccessor out of program sequence

– 26 –