Operation Manual

Appendix
146
The printer has a parallel interface for connecting to PC.
Shape of Connector
Signal lines and pin arrangement
*Signal used for bidirectional communication
Signal functions
Parallel Interface Connector
No. I/O Signal name No. I/O Signal name
1I STB 19- GND
2 I/O DATA0 20 - GND
3 I/O DATA1 21 - GND
4 I/O DATA2 22 - GND
5 I/O DATA3 23 - GND
6 I/O DATA4 24 - GND
7 I/O DATA5 25 - GND
8 I/O DATA6 26 - GND
9 I/O DATA7 27 - GND
10 O nACK 28 - GND
11 O BUSY 29 - GND
12 O PE 30 - GND
13 I SELECT 31 I nNIT
14 O nAUTOFD* 32 O nFAULT
15 - Not Used 33 - Not Used
16 - GND 34 - Not Used
17 - GND 35 - Not Used
18 O PLH 36 I nSELIN*
Signal name Function
STB Signal for sending data to printer.
Steady-state value is High.
Printer reads data until this signal becomes from Low to High.
DATA0 to DATA7 Input signal for receiving 8-bit data.
Logic 1 is High.
DATA0 is LSB and DATA 7 is MSB.
18 1
36 19