HP dx7510 Service Reference Guide: HP Compaq dx7510/dx7518 Business PC - Page 85
Parallel Interface, Serial Interface, Powered and Non-Powered
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Parallel Interface Connector and Icon Pin Signal 1 Strobe 2 Data Bit 0 3 Data Bit 1 4 Data Bit 2 5 Data Bit 3 6 Data Bit 4 7 Data Bit 5 8 Data Bit 6 9 Data Bit 7 Pin Signal 10 Acknowledge 11 Busy 12 Paper End 13 Select 14 Auto Linefeed 15 Error 16 Initialize Printer 17 Select IN 18-25 Signal Ground Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 Carrier Detect (12V if powered) 2 Receive Data 3 Transmit Data 4 Data Terminal Ready 5 Signal Ground 6 Data Set Ready 7 Request to Send 8 Clear to Send 9 Ring Indicator (5V if powered) Parallel Interface 77
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Parallel Interface
Connector and Icon
Pin
Signal
Pin
Signal
1
2
3
4
Strobe
Data Bit 0
Data Bit 1
Data Bit 2
10
11
12
13
Acknowledge
Busy
Paper End
Select
5
6
7
8
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
14
15
16
17
Auto Linefeed
Error
Initialize Printer
Select IN
9
Data Bit 7
18–25
Signal Ground
Serial Interface, Powered and Non-Powered
Connector and Icon
Pin
Signal
1
2
3
Carrier Detect (12V if powered)
Receive Data
Transmit Data
4
5
6
Data Terminal Ready
Signal Ground
Data Set Ready
7
8
9
Request to Send
Clear to Send
Ring Indicator (5V if powered)
Parallel Interface
77