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Appendix
Bi-directional Parallel Interface
The bi-directional parallel interface is based on the IEEE1284 standard.
If your computer has a bi-directional parallel port, the printer driver and printer can take
advantage of faster data transfer.
Specifications
Connector Type IEEE1284 type connector
Cable Use a shielded cable 2 m (6.6 ft.) or less in length.
Pin configuration
Parallel Interface connector (printer side)
Notes:
“Return” denotes the return side wire of a twisted pair cable and is connected to
signal ground.
Be sure to use only a shielded cable. The printer will not operate properly if any of
the pins are not connected.
18
36
1
19
Signal Pin
Return
Signal
side pin
1 19 nStrobe
2 20 Data 1
3 21 Data 2
4 22 Data 3
5 23 Data 4
6 24 Data 5
7 25 Data 6
8 26 Data 7
9 27 Data 8
10 28 nAck
Signal Pin
Return
Signal
side pin
11 29 Busy
12 30 PError
13 31 Select
14 32 nAutoFd
18 - +5V(Peripheral)
31 - nInit
32 - nFault
35 - +5V(Host)
36 - nSelection