XR520 User’s Manual
7
Centronics Parallel Interface
PIN
SIGNAL
I/O
DESCRIPTION
1
STROBE-
Input
Synchronize signal Data received
2~9
DATA0~7
Input/Output Data bit Transmitted 0~7
10
ACK-
Output
Data receiving completed.
11
BUSY
Output
Impossible to print of data receiving.
12
PE
Output
Paper empty
13
SELECT
Output
Printer status for ON/OFF line
14
AUTO FEED-
Input
Paper auto feed signal
15
GROUND
-
System ground
16
GROUND
-
System ground
17
NC
-
18
LOGIC-H
-
+3.3V
19~30
GROUND
-
System ground
31
INIT-
Input
Initialize
32
ERROR-
Output
Printer error
33
GROUND
-
System ground
34
NC
-
35
NC
-
36
SELLECT IN-
Input
Printer select signal
