171
The bidirectional parallel interface is based on the IEEE P1284-C standard.
If your computer has a bidirectional parallel port, the printer driver and printer can
take advantage of faster data transfer.
Specifications
Pin configuration
Parallel Interface connector (printer side)
Notes:
B
“Return” denotes the return side wire of a twisted pair cable and is connected to
signal ground.
B
Be sure to use only a shielded cable. The printer will not operate properly if any
of the pins is not connected.
Signal
Signal
+5V(Peripheral)
nSelectin
Return
side pin
30
Appendix
Bidirectional Parallel Interface
19
Busy
Signal Pin
1
20
Select
2
21
nAck
3
22
nFault
4
23
PError
5
24
Data 1
6
25
Data 2
7
26
Data 3
8
27
Data 4
9
28
Data 5
10
29
Data 6
11
Data 7
12
31
Data 8
Signal Pin
Return
side pin
13
32
nInit
14
33
nStrobe
15
34
16
35
nAutoFd
17
+5V(Host)
18
36
18
36
1
19
IEEE 1284-C type connector
Cable
Use a shielded cable 2 m (6.6 ft.) or less in length.
Connector Type
