Epson C82310 manual 16

	Signal	Return			Signal	Direction			Description
	Pin	Pin
13			SLCT			OUT	A high signal indicates that the
							printer is in the selected state.
							The signal goes low in the
							following		cases:
							1) When the SLCT IN signal
								goes high
							2)	During a		printer-error state
							3)	When	the	interface card is
								disabled
							This signal can be fixed to
							“high” with DIP Switch 1-5.
14						I N	This function depends on
				AUTO
					FEED		printer specifications.
			XT
15			NC				Not used
16			GND				Twisted-pair, return-signal
							g r o u n d
17			CHAS-				Printer's chassis ground, which
			S I S				is isolated from the logical
			GND				ground
18			NC				Not used
19-30			GND				Twisted-pair, return-signal
							ground
31						I N	When the signal level goes low,
			INIT
							the printer controller and the
							interface		card are reset. This
							signal level is usually high; its
							pulse width must be more than
							50 µseconds at the receiving
							terminal.
32					ERROR	OUT	This signal level goes low when
							the printer is out of paper or in
							an	error	state.
33					GND		Twisted-pair return signal
							ground.
	34				NC		Not used

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