Appendix A - Troubleshooting
Parallel Interface The figure below displays the cable wiring Cable Wiring required to use the printer's Centronics parallel
interface.
HOST
STROBE
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
ACK/
BUSY
PAPER ERR.
READY
INIT
ERROR/
N/A
N/A
N/A
SIG. GND SIG. GND SIG. GND SIG. GND SIG. GND SIG. GND SIG. GND
DB-25
Pin No.
1
2
3
4
5
6
7
8
9
10 
11 
12 
13 
14
15 
16
17
18
19
20
21
22
23
24
25
Centronics
Pin No. PRINTER
1 |
|
|
| STROBE |
|
| |||
2 |
|
|
| DATA 0 |
|
| |||
3 |
|
|
| DATA 1 |
|
| |||
4 |
|
|
| DATA 2 |
|
| |||
5 |
|
|
| DATA 3 |
|
| |||
6 |
|
|
| DATA 4 |
|
| |||
7 |
|
|
| DATA 5 |
|
| |||
8 |
|
|
| DATA 6 |
|
| |||
9 |
|
|
| DATA 7 |
|
| |||
10 |
|
|
| ACK/ |
|
|
| ||
11 |
|
|
| BUSY |
|
|
| ||
12 |
|
|
| PAPER ERR. |
|
|
| ||
13 |
|
|
| READY |
|
|
| ||
14 |
|
|
| INIT |
|
|
| ||
15 |
|
|
| ERROR/ |
|
|
|
16N/A
17N/A
18
+5V
19
SIG. GND
20
SIG. GND
21
SIG. GND
22
SIG. GND
23
SIG. GND
24
SIG. GND
25
Female DB-25 to Male Centronics
(Cable)
+5 volts at 300 mA for external device (e.g. KDU or scanner)
| 27 |
