Star Micronics DP8340RC 사용자 가이드

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Pin No.Signal Name IN/OUT

Function

Signals when data is ready to be read.Signal

1

STROBE

IN

gose from  HIGH  to  LOW  (for at least 0.5
microsec.) when data is available.
These signals provide the information of the

2-9

DATA1-8

IN

first to eighth bits of parallel data.Each signal
is at HIGH level for a logical 1 and at a LOW
level for a logical 0.

10

ACK

OUT

A 9 microsecond LOW pulse acknowledges
receipt of data.
When this signal goes LOW, the printer is ready
to accept data. When the printer is in one of

11

BUSY

OUT

the conditions below.”HIGH” is set.
1. Data being entered.
2. Off line.
3. Error condition.

12

PAPER

OUT

This signal is normally LOW. It will go HIGH

OUT

if the printer runs out of paper.

13

SELECTED

OUT

This signal is HIGH when the printer is online.

14-15

N/C

Unused

16

SIGNAL

Signal ground.

GND

17

CHASSIS

Chassis ground, isolated from logic ground.

GND

18

N/C

Unused

19-30

GND

Twisted pair return signal ground level.

31

RESET

IN

When this signal gose LOW, the printer is reset
to its power-on condition.
This signal is normally HIGH. This signal goes

32

ERROR

OUT

LOW to signal that the printer cannot print
due to an error condition.
Refer to Item 7-6 Emergency Suspension.

33

EXT GND

External ground.

34-36

N/C

Unused.