I have found some code on the internet by accedent :)
Don't know if it works.


Dennis.
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/*
Program:Printer.c
Printer test Program
Author:Bhalchandra
Date:06-07-2000
Modified:07-07-2000
Present hardware connections.
data port1
init P3.2
strobe P3.3
busy P3.4
You can change this if you want,Simply assign different port pins.

*/
#include <stdio.h>
SFR PORT 0x90 //define data port you are using,as new SFR
BIT init P3.2 //the init,strobe and busy line connections
BIT strobe P3.3
BIT busy P3.4
unsigned char temp[35]="Printer test program by SPJ Systems";
unsigned char temp1[25]="114,Chitrashala Building";
unsigned char i;

void initialise(){ //initialise printer
init=0;
init=1;
}
unsigned char send_char(unsigned char dat){
unsigned int timeout;
timeout=0xffff; //this is timeout counter
while(busy){ //check busy
timeout--;
if (timeout==0) //this is timeout error,one character lost
return(0); //you can display error.
}
PORT=dat; //out data at port
strobe=0; //give low pulse to strobe
asm nop;
strobe=1;
return(1);
}

void main()
{
init=1; //init=1
strobe=1; //strobe=1
initialise(); //initialise printer
delay_ms(1000); //delay
for(i=0;i<35;i++) //sends string1
send_char(temp[i]);
send_char(0x0d); //carriage return
send_char(0x0a); //line feed

for(i=0;i<24;i++) //send string2
send_char(temp1[i]);
send_char(0x0d); //carriage return
send_char(0x0a); //line feed

strcpy(temp1,"562,Sadashiv Peth Pune-30");
for(i=0;i<25;i++)
send_char(temp1[i]); //send string3
send_char(0x0d); //carriage return
send_char(0x0a); //line feed

strcpy(temp,"Visit us at www.spjsystems.com");
for(i=0;i<30;i++)
send_char(temp[i]); //send string4
send_char(0x0d); //carriage return
send_char(0x0a); //line feed
while(1){} //infinite loop
}