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Epson 5000 User Manual

Page 120

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Interface Specifications

Signal Return

Pin

Pin

Signal Direction

Description

11

29

BUSY

OUT

A HIGH signal Indicates that the printer

cannot receive data. The signal goes

HIGH in the following cases:

1) During data entry (ea. char. time)

2) During printing
3) When the PAUSE button is pressed
4) During an error state.

12

30 PE

OUT

A HIGH signal indicates that the printer
is out of paper.

13

SLCT

OUT

Pulled up to 5 V through 3.3 Kohm
resistance.

14

AUTO

FEED

XT

IN

When this signal is LOW, the paper

IS

automatically fed one line after printing.
(The signal level can be fixed to this by
setting DIP switch 2-4 to on.)

15

16

17

18

19-30 -

31

16

32

NC

Not used.

GND

Logic ground level.

C H A S S I S -

Printer’s chassis ground, which is

GND

isolated from the logic ground.

NC

Not used.

GND

Twisted-pair return signal ground level.

INIT

IN

When this level becomes LOW, the

printer controller is reset to its power-up
state and the print buffer is cleared. This
level is normally HIGH; its pulse width

must be more than 50 microseconds at

the receiving terminal.

ERROR

OUT

This level becomes LOW when the

printer is:

1) in a paper-out state

2) when the PAUSE button is pressed

3) in an error state.

Technical Specifications

7-11