I have downloaded 2 javascript SDK for Epson printer that supports TM-U220, and both of them won't connect to my printer and won't print. But when I tried to use other SDK such as QZ Tray, it worked, but the QZ Tray must be turned on, I want this to work in android, so I use the javascript SDK from Epson.
The problem is when I use the printer sample that Epson provided in the javascript SDK and input the ip: 192.168.1.98, port: 9100, and device id: local_printer, I got this error :
connected to ePOS Device Service Interface is failed. [ERROR_TIMEOUT]
.
But the printer did a small printing, letter that I can't read, and at the very end of the print : 2http/1.1. And in the console :
OPTIONS https://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000 net::ERR_CONNECTION_REFUSED
and
OPTIONS https://192.168.1.98/cgi-bin/eposDisp/service.cgi?devid=local_display&timeout=10000 net::ERR_CONNECTION_REFUSED
I've also created my own simple code.
This is my first code using epos-2.3.0.js :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Print Test</title>
<script type="text/javascript" src="epos-2.3.0.js"></script>
<script type="text/javascript">
// Retrieving Printer objects (printer selection)
var printer = null;
// Retrieving Printer objects (printer selection)
// Creating ePOSDevice objects (device connection and communication)
var ePosDev = new epson.ePOSDevice();
function connect() {
var ipAddress = '192.168.1.98'; var port = '9100';
ePosDev.connect(ipAddress, port, callback_connect);
}
// Creating ePOSDevice objects (device connection and communication)
// Retrieving Printer objects (printer selection)
function callback_connect(resultConnect) {
var deviceId = 'local_printer';
var options = {'crypto' : false, 'buffer' : false};
if ((resultConnect == 'OK') || (resultConnect == 'SSL_CONNECT_OK')) {
// Retrieves the printer object
alert("Success callback connect");
ePostDev.createDevice(deviceId, ePosDev.DEVICE_TYPE_PRINTER, options, callback_createDevice);
}
else {
// Displays error messages
alert("Error callback connect");
}
}
function callback_createDevice(deviceObj, errorCode) {
if (deviceObj === null) {
// Displays an error message if the system fails to retreive the printer object
return;
}
printer = deviceObj;
// Registers the print complete event
printer.onreceive = function(response) {
if (response.success) {
// Displays the successful print message
alert("Callback create device response success");
}
else {
// Displays error messages
alert("Callback create device response failed");
}
}
}
// Retrieving Printer objects (printer selection)
// Creating print data (data buffering)
function createData() {
printer.addTextAlign(printer.ALIGN_CENTER);
printer.addText('Hello World\n');
}
// Creating print data (data buffering)
// Sending print data (printing and disconnection)
function send() {
if (ePosDev.isConnected) {
printer.send();
}
}
// Sending print data (printing and disconnection)
</script>
</head>
<body>
<input type="button" onclick="connect()" value="Connect" />
<input type="button" onClick="send()" value="Print Hello World" />
</body>
</html>
And this one I'm using epos-print-3.2.0.js :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Print Test 2</title>
<script type="text/javascript" src="epos-print-3.2.0.js"></script>
<script type="text/javascript">
function buildMessage() {
// Create a print document
var builder = new epson.ePOSBuilder();
builder.addTextLang('en');
builder.addTextSmooth(true);
builder.addTextFont(builder.FONT_A);
builder.addTextSize(3, 3);
builder.addText('Hello,\tWorld!\n');
builder.addCut(builder.CUT_FEED);
var request = builder.toString();
var address = 'http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000';
// Create an ePOS-Print object
var epos = new epson.ePOSPrint(address);
//Send the print document
epos.send(request);
}
</script>
</head>
<body>
<button onclick="buildMessage()">Run</button>
</body>
</html>
When I run the second code, I got this error in my console :
OPTIONS http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
and
XMLHttpRequest cannot load http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. The response had HTTP status code 405.
But When I change the address from
http://192.168.1.98/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
to
http://192.168.1.98:9100/cgi-bin/epos/service.cgi?devid=local_printer&timeout=10000
it printed me this :
OPTIONS /cgi-bin/epos/service.cgi?devid=local-printer&timeout=10000 HTTP/1.1
Host: 192.168.1.98:9100
Connection: keep-alive Access-Control-Request-Method: POST
Origin: null
User-Agent: Mizilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
Access-Control-Request-Headers: content-type, if-modified-since, soapaction
Accept: */*
Accept-Encoding: gzip, deflate,sdch
Accept=Language: en-US, en;q=0.8
