HP xw4400 Service And Technical Reference Manual page 169

Parallel connector
Pin
1 Strobe
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
6 Data Bit 4
Serial connector
USB connector
IEEE 1394 connector
ENWW
Signal Pin
7
8
9
10
11
12
Signal
Data Bit 5 13
Data Bit 6 14
Data Bit 7 15
Acknowledge 16
Busy 17
Paper End 18-25
Pin
1
2
3
4
5
6
7
8
9
Pin
1
2
3
4
Pin
Pin Signal
Select Auto
Linefeed
Error
Initialize Printer Select
IN Signal
Ground
Signal
Carrier Detect
Receive Data
Transmit Data
Data terminal ready
Signal ground
Data set ready
Request to Send
Clear to Send
Ring Indicator
Signal
+5 VDC
- Data
+ Data
Ground
Signal
Connector pin descriptions 159