Epson II A-10 Technical Specifications

Signal	Return
Pin	Pin	Signal				Direction	Description
12	28				PE	OUT	A HIGH signal indicates the
							printer is in a paper-out state
							or in an error state.
13	28			SLCT		OUT	Pulled up to +5 V through
							1 kΩ resistance
14	30					IN	When this signal is LOW, the
				AUTO
				FEED			paper is automatically fed
					XT		one line after printing.
15	—				NC	—	Not used
16	—			GND		—	Logic ground level
17	—	CHASSIS				—	Printer’s chassis ground,
				GND			which is connected to the
							logic ground
18	—	Logic H				OUT	Pulled up to +5 V through
							3.9 KΩ resistance
19-30	—			GND		—	Twisted-pair return signal
							ground level
31	30					IN	When this signal goes LOW,
					INIT
							the printer controller is reset
							to its state when the power is
							first turned on and the print
							buffer is cleared. This level is
							normally HIGH; its pulse width
							must be more than 50 μs at
							the receiving terminal.
32	29					OUT	This signal level goes LOW
			ERROR
							when the printer:
							1) Is out of paper
							2) Is in an error state
							3) Has no ink cartridges
							installed
33	—			GND		—	Same as for Pins 19-30
34	—				NC	—	Not used
35	—			+5 V		OUT	Pulled up to +5 V through
							3.3 KΩ resistance
36	30			SLIN		IN	Not used

A-10Technical Specifications