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6 Specifications
6.6.3 Centronics
The 36-pin Centronics on the printer uses parallel communication, and complies with
IEEE 1284 compatibility mode (also called SPP, Standard Parallel Port). The figure
below shows its pinout.
18
36
Signal
Pin
Direction
1
To Printer
2
To Printer
3
To Printer
4
To Printer
5
To Printer
6
To Printer
7
To Printer
8
To Printer
9
To Printer
10
From Printer
11
From Printer
12
From Printer
13
From Printer
14
To Printer
15
NC
16
S-GND
17
P-GND
18
Power
1
19
Signal
Pin
/STROBE
19
20
Data 1
21
Data 2
Data 3
22
Data 4
23
24
Data 5
Data 6
25
Data 7
26
Data 8
27
28
/ACK
BUSY
29
PE
30
SELECT
31
32
AUTO
33
Signal-GND
34
Power-GND
35
36
5V
90
Signal
Signal
Direction
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
S-GND
Signal-GND
To-Printer
LPTINIT
From Printer
/FAULT
NC
NC
NC
To Printer
SELIN
Interfaces
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