pure-escpos/demo.js

ESCPOS printing with no dependencies

Printer = require('./escpos_printing.js');

function init() {
alert("Welcome to a Demo of ESCPOS");
Printer.ESCPOS_INIT();


var printerList = document.getElementById('printerlist');
printerList.remove(0);
var entry = document.createElement('option');
entry.text = "select Printer";
printerList.add(entry);

for (p=0;p<Printer.ESCPOS_PRINTERLIST.length;p++) {
		   var entry = document.createElement('option');
		   entry.text = Printer.ESCPOS_PRINTERLIST[p];
		   printerList.add(entry);
        }

}


function Test_print() {
var list = document.getElementById("printerlist")
var currentPrinter = list.options[list.selectedIndex].text;


           Printer.ESCPOS_INIT();
           Printer.append(Printer.ESCPOS_CMD.RESET);
           Printer.append(Printer.ESCPOS_CMD.CENTER);
           Printer.append(Printer.ESCPOS_CMD.SETSIZE(3,3));
           Printer.append(Printer.ESCPOS_CMD.FONTB);
           Printer.append("Centered\nHeader\n\n");           
           Printer.append(Printer.ESCPOS_CMD.SETSIZE(1,1));
           Printer.append(Printer.ESCPOS_CMD.LEFT);
           Printer.append(Printer.ESCPOS_CMD.FONTA);
           Printer.append("Normal Text Font A\n");           
           Printer.append(Printer.ESCPOS_CMD.RIGHT);
           Printer.append(Printer.ESCPOS_CMD.FONTB);
           Printer.append("Right and Font B\n");           
           Printer.append(Printer.ESCPOS_CMD.FONTA);
           Printer.append(Printer.ESCPOS_CMD.LEFT);
           Printer.append(Printer.ESCPOS_CMD.BOLD);
           Printer.append("This must be important\n");           
           Printer.append(Printer.ESCPOS_CMD.THICKUNDERLINE);
           Printer.append("Because it is written first in bold letters ant then even undelined\n");           
           Printer.append(Printer.ESCPOS_CMD.NOUNDERLINE);
           Printer.append(Printer.ESCPOS_CMD.NORMAL);
           Printer.append(Printer.ESCPOS_CMD.INVERT_ON);
           Printer.append("But the world is only Black and White on Thermal Printers\n");           
           Printer.append(Printer.ESCPOS_CMD.INVERT_OFF);
           Printer.append(Printer.ESCPOS_CMD.UPSDOWN_ON);
           Printer.append("And sometimes upside down\n");           
           Printer.append(Printer.ESCPOS_CMD.UPSDOWN_OFF);
           Printer.append("I dont speak Greek but it looks nice\n");           
           Printer.append(Printer.ESCPOS_CP_EPSON.GREEK_1253);
           Printer.append("ÖÄÜßüäöÖÄÜßüäö\n");
           Printer.append(Printer.ESCPOS_CMD.FEEDUNITS_ANDPRINT(125));
           Printer.append("This is a line after 125 motion units \n");           
           Printer.append(Printer.ESCPOS_CMD.FEEDLINES_ANDPRINT(5));
           Printer.append("This is the end after 5 lines \nand cutting off after 100 Units");           
           Printer.append(Printer.ESCPOS_CMD.FEEDCUT_PARTIAL(100));
           
           

        var sucess = Printer.ESCPOS_PRINT(currentPrinter);
        if(!sucess){
                alert(Printer.ESCPOS_LASTERROR);
        }           
}

function Test_Imageprint() {
var list = document.getElementById("printerlist")
var currentPrinter = list.options[list.selectedIndex].text;

    Printer.append(Printer.ESCPOS_IMAGEFILE(this.window,'escposimage.jpg',33,true,127));
        var sucess = Printer.ESCPOS_PRINT(currentPrinter);
        if(!sucess){
                alert(Printer.ESCPOS_LASTERROR);
        }           
}

function Test_Barcodeprint() {
var list = document.getElementById("printerlist")
var currentPrinter = list.options[list.selectedIndex].text;


    Printer.ESCPOS_INIT();
    Printer.append(Printer.ESCPOS_BARCODE("12345678",70,3,80,0,2));
        var sucess = Printer.ESCPOS_PRINT(currentPrinter);
        if(!sucess){
                alert(Printer.ESCPOS_LASTERROR);
        }           

}

function Test_QRprint() {
var list = document.getElementById("printerlist")
var currentPrinter = list.options[list.selectedIndex].text;
    Printer.ESCPOS_INIT();
    Printer.append(Printer.ESCPOS_QRCODE("http://www.google.com",51,6,48));
        var sucess = Printer.ESCPOS_PRINT(currentPrinter);
        if(!sucess){
                alert(Printer.ESCPOS_LASTERROR);
        }           
}

function Test_Full() {
var list = document.getElementById("printerlist")
var currentPrinter = list.options[list.selectedIndex].text;


           Printer.ESCPOS_INIT();
           Printer.append(Printer.ESCPOS_CMD.RESET);
           Printer.append(Printer.ESCPOS_CMD.CENTER);
           Printer.append(Printer.ESCPOS_CMD.SETSIZE(3,3));
           Printer.append(Printer.ESCPOS_CMD.FONTB);
           Printer.append("Centered\nHeader\n\n");           
           Printer.append(Printer.ESCPOS_CMD.SETSIZE(1,1));
           Printer.append(Printer.ESCPOS_CMD.LEFT);
           Printer.append(Printer.ESCPOS_CMD.FONTA);
           Printer.append("Normal Text Font A\n");           
           Printer.append(Printer.ESCPOS_CMD.RIGHT);
           Printer.append(Printer.ESCPOS_CMD.FONTB);
           Printer.append("Right and Font B\n");           
           Printer.append(Printer.ESCPOS_CMD.FONTA);
           Printer.append(Printer.ESCPOS_CMD.LEFT);
           Printer.append(Printer.ESCPOS_CMD.BOLD);
           Printer.append("This must be important\n");           
           Printer.append(Printer.ESCPOS_CMD.THICKUNDERLINE);
           Printer.append("Because it is written first in bold letters ant then even undelined\n");           
           Printer.append(Printer.ESCPOS_CMD.NOUNDERLINE);
           Printer.append(Printer.ESCPOS_CMD.NORMAL);
           Printer.append(Printer.ESCPOS_CMD.INVERT_ON);
           Printer.append("But the world is only Black and White on Thermal Printers\n");           
           Printer.append(Printer.ESCPOS_CMD.INVERT_OFF);
           Printer.append(Printer.ESCPOS_CMD.UPSDOWN_ON);
           Printer.append("And sometimes upside down\n");           
           Printer.append(Printer.ESCPOS_CMD.UPSDOWN_OFF);
           Printer.append("I dont speak Greek but it looks nice\n");           
           Printer.append(Printer.ESCPOS_CP_EPSON.GREEK_1253);
           Printer.append("ÖÄÜßüäöÖÄÜßüäö\n");
           Printer.append(Printer.ESCPOS_CP_EPSON.MULTILINGUAL_850);
           Printer.append(Printer.ESCPOS_CMD.FEEDUNITS_ANDPRINT(125));
           Printer.append("This is a line after 125 motion units \n");           
           Printer.append(Printer.ESCPOS_CMD.FEEDLINES_ANDPRINT(5));
           Printer.append("Have a break after 5 lines \n");           
           Printer.append("\n");           
           Printer.append("What abour a Logo or other image \n\n");
           Printer.append(Printer.ESCPOS_IMAGEFILE(this.window,'escposimage.jpg',33,true,127));
           Printer.append(Printer.ESCPOS_CMD.FEEDLINES_ANDPRINT(2));
           Printer.append("Looking nice, isnt it \n");
           Printer.append("but a QR code is more stylish nowadays \n");
           Printer.append(Printer.ESCPOS_CMD.RIGHT);
           Printer.append(Printer.ESCPOS_QRCODE("https://www.wikipedia.org/",51,6,48));
           Printer.append(Printer.ESCPOS_CMD.CENTER);
           Printer.append("How about some old fashioned Barcode\n\n");
           Printer.append(Printer.ESCPOS_BARCODE("12345678",70,3,80,0,2));
           Printer.append("Thankyou for trying out ESCPOS\n");
           

           
           
           
           
           Printer.append(Printer.ESCPOS_CMD.FEEDCUT_PARTIAL(100));
           
           

        var sucess = Printer.ESCPOS_PRINT(currentPrinter);
        if(!sucess){
                alert(Printer.ESCPOS_LASTERROR);
        }               
}