| Standard
Parallel Port (SPP) |
| Signal
Name |
Centronics
(37-pin) |
DB-25
(25-pin) |
| STROBE |
1 |
1 |
| DATA
0 |
2 |
2 |
| DATA
1 |
3 |
3 |
| DATA
2 |
4 |
4 |
| DATA
3 |
5 |
4 |
| DATA
4 |
6 |
6 |
| DATA
5 |
7 |
7 |
| DATA
6 |
8 |
8 |
| DATA
7 |
9 |
9 |
| ACK |
10 |
10 |
| BUSY |
11 |
11 |
| PAPER
EMPTY |
12 |
12 |
| ON
LINE |
13 |
13 |
| NOT
USED |
14,
15, 33 -- 36 |
17 |
| GROUND |
16,
17, 19 -- 30 |
18-25 |
| PRINTER
ON |
18 |
|
| RESET |
31 |
16 |
| ERROR |
32 |
15 |
|
| Enhanced
Parallel Port (EPP) |
| Signal
Name |
DB-25
(25-pin) |
| WRITE |
1 |
| DATA
0 |
2 |
| DATA
1 |
3 |
| DATA
2 |
4 |
| DATA
3 |
5 |
| DATA
4 |
6 |
| DATA
5 |
7 |
| DATA
6 |
8 |
| DATA
7 |
9 |
| ACK |
10 |
| BUSY |
11 |
| PAPER
EMPTY |
12 |
| SELECT |
13 |
| AUTO
LINE FEED |
14 |
| ERROR/FAULT |
15 |
| INITIALIZE |
16 |
| SELECT
PRINTER |
17 |
| GROUND |
18-25 |
|
