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[General] ESC command format for thermal printer using hyperterminal

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rkmuchandikar

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i m trying to send esc commmand sequence to thermal printer using hyper terminal

but i dnt know which format i sholud used

eg,

ESC % n this is 1 command as per module which will print data using different font ..but whenever i send this command printer simply print this command as it is(ESC % n). it should not print this command it should accept command as shld change font.

plz help me
 

This must be similar to the Epson compatible command set.

I believe it includes sending character ASCII 27, folllowed by the parameters.

What ASCII sequence are you sending? It would not happen to be three letters "ESC", would it?
 

BradtheRad said:
This must be similar to the Epson compatible command set.

I believe it includes sending character ASCII 27, folllowed by the parameters.

What ASCII sequence are you sending? It would not happen to be three letters "ESC", would it?
Click to expand...


Thanx for reply,


commands are follwing,

for reset

1. ESC @
format <1Bh><40h>

for font change
2. ESC % n
formaat <1Bh><25h><n>

that format is given with command in technical module...



but i have tried sending both ESC command and format given but still not working
 

Is there a space between ESC & @??? If so then you have to send <0x1B><0x20><0x40>

Can you attach the datasheet of the thermal printer?
 

hello,

if your printer follow EPSON ESC sequence ..example of use
and document for standard ESC commandes

Code: 
void MHardcopy()
{
 int yt,x,y,t,k;
 int my;
 int Dx;
 byte Hi,Lo;
 byte pr;
 StateLP();
 if (etatLP==1)
 {
 my=596;
 EnteteLP();
 Lp(27);Lp('~');Lp('5');Lp(1); 	/* mode IBM */
 Lp(27);Lp('3');Lp(24);         /* was 24   interligne 12/216 pouce    */
 Lp(10);Lp(13);
 y=1;
 Dx=780;
 Hi=(byte)(Dx>>8);Lo=(byte)(Dx & 0x00FF);
 while(y<=my)
 {
/*	Lp(27);Lp('Z');Lp(Lo);Lp(Hi);*/
/*	Lp(27);Lp('K');Lp(Lo);Lp(Hi);*/
/*	Lp(27);Lp('L');Lp(Lo);Lp(Hi);*/
	Lp(27);Lp('Y');Lp(Lo);Lp(Hi);	/*	IBM mode  120 points /pouce */
	for (x=10;x<=790;x++)
   {
    yt=y;
    pr=0;
     for (t=0;t<8;t++)
     {
      pr=pr << 1;
      k=getpixel(x,yt);		/* exclusion noir,gris,blanc clair */
	/*if ((k!=0)&&(k!=8)&&(k!=7)) pr=pr|1;*/
	if (k!=0) pr=pr|1;
      yt++;
     }
     Lp(pr);
   }
  y=yt;
  Lp(27);Lp('3');Lp(24);     /*    8 aiguilles => 24/216= 8/72 eme */
  Lp(10);Lp(13);
  }
  Lp(27);Lp('@');
  Lp(27);Lp(2);			 /* 6 lignes par pouce */
  Lp(13);Lp(10);
 }
 else
 Couine();
}

EPSON_ESC_Cdes_a.jpg

EPSON_ESC_Cdes_b.jpg
 

Thanx to all for giving me suggetions,,,,i found the problem and solution....problem was that ESC is not command its button on our keypad, when we press esc its hex value is given to hyperterminal,,,,,but we cant send hex value of esc using hyperterminal......for that we have to use other serial terminal software REALTERM....where we can hex value og ESC
 

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