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Parallel (Centronics)
The parallel port is a standard 36-pin Centronics connector. Pin assignments are
as follows:
Pin
Direction
Definition
Pin
Direction
Definition
1
In
/STROBE
13
Out
SELECT
2
In
Data1
14,15
NC
3
In
Data 2
16
-
Ground
4
In
Data3
17
-
Ground
5
In
Data4
18
6
In
Data5
19~30
-
Ground
7
In
Data6
31
NC
8
In
Data7
32
Out
/Fault
9
In
Data8
33~36
-
NC
10
Out
/ACK
11t
Out
BUSY
12
Out
PE
Auto Polling
Both the serial port and parallel port of this printer can be active at the same
time, i.e. the printer can simultaneously communicate with two PCs via different
ports. However as no port contention is made for this printer, if both PCs transmit
data at the same time the data may become damaged in the receiving buffer.