TransAct ITHACA 80PLUS Operator's Manual page 45

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The PcOS Series 80PLUS Printer requires a 25-pin male D-shell connector at
the printer. To connect the printer to most personal computers, use TransActs'
part number 253-9800007, 25-pin male to 25-pin male parallel interconnect
cable.
"
Pin(s) Signal
1 STROBE
2-9 D0 - D7
10 ACK\
11 BUSY
12 PE
13 SLCT
14 AUTOFD
15 ERR\
16 INIT\
17 SLIN
18-25 GND
Description
Clock data to printer
Data
Printer accepted data
Printer busy
Paper out/status
Printer selected
Autofeed paper
Printer error
Initialize the printer
Select printer
Ground
Appendix
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Direction
Host to Printer
Host to Printer
Printer to Host
Printer to Host
Printer to Host
Printer to Host
Host to Printer
Printer to Host
Host to Printer
Host to Printer