Mustek PP3000 manual Busy

TM

CHAP. 5 MAIN …

			This signal provides the information of d7 the eighth
9	DATA 7	I	bit (MSB) of parallel data. The signal is at HIGH
			level for a logical 1 and at a LOW level for a logical
			0.
10	ACK	O	A 9 microsecond LOW pulse to acknowledge receipt
			of data.
			When this signal goes LOW, the printer is ready to
			accept data. When the printer is in one of the
11	BUSY	O	conditions below, HIGH is set:
			1.	Data being entered
			2.	Off line
			3.	Error condition
12	PAPER END	O	This signal is normally LOW. It will go HIGH if the
			printer runs out of paper.
13	SELECTED	O	This signal is HIGH when the printer is on-line.
14	N/C
			This signal is normally HIGH. This signal goes LOW
15	ERROR	O	to signal that the printer cannot print due to an error
			condition
16	N/C
			When this signal goes LOW, the printer is selected to
17	SLCTIN	I
			work.
18	GND		Ground
19	GND		Ground
20	GND		Ground
21	GND		Ground
22	GND		Ground
23	GND		Ground
24	GND		Ground
25	GND		Ground

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