blank print

lievano...@gmail.com

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Jan 16, 2020, 8:11:32 PM1/16/20

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The free version has some limitations, is that there is a time when the impressions are blank, I am using javascript in linux

Tres Finocchiaro

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Jan 17, 2020, 12:18:53 AM1/17/20

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We're working on some bugs surrounding blank prints. Some are fixed some are under active investigation. Can you offer some more details? What are you printing? Which version are you using?

- Tres.Fin...@gmail.com

On Thu, Jan 16, 2020 at 8:11 PM <lievano...@gmail.com> wrote:

The free version has some limitations, is that there is a time when the impressions are blank, I am using javascript in linux

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lievano...@gmail.com

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Jan 17, 2020, 3:51:14 PM1/17/20

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I am using v2.0.11-1 and I am using zpl code, if I use it once if it works, if it is used more than once the white prints come out

El jueves, 16 de enero de 2020, 23:18:53 (UTC-6), Tres Finocchiaro escribió:

We're working on some bugs surrounding blank prints. Some are fixed some are under active investigation. Can you offer some more details? What are you printing? Which version are you using?

- Tres.Fi...@gmail.com

On Thu, Jan 16, 2020 at 8:11 PM <lievano...@gmail.com> wrote:

The free version has some limitations, is that there is a time when the impressions are blank, I am using javascript in linux

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Tres Finocchiaro

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Jan 17, 2020, 3:58:21 PM1/17/20

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That should be fixable. Can you share your code?

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lievano...@gmail.com

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Jan 17, 2020, 4:57:02 PM1/17/20

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aquiiii Config {printer: {…}, setPrinter: ƒ, getPrinter: ƒ, reconfigure: ƒ, getOptions: ƒ, …}setPrinter: ƒ (newPrinter)getPrinter: ƒ ()reconfigure: ƒ (newOpts)getOptions: ƒ ()printer: {name: "LK-B24"}config: {colorType: "color", copies: 1, density: 0, duplex: false, fallbackDensity: null, …}__proto__: Object aquiii2 ["^XA^PW640^FPH^FT210,1^A0R,80,80^FB1400,3,0,C,0^FDJ…^FPH^FT80,1^A0R,40,40^FB1400,3,0,C,0^FDAsia^FS^XZ"]0: "^XA^PW640^FPH^FT210,1^A0R,80,80^FB1400,3,0,C,0^FDJenry Alonso Liévana Abadía^FS^PW640^FPH^FT165,1^A0R,40,40^FB1400,3,0,C,0^FDPing Pong Innovation^FS^PW640^FPH^FT120,1^A0R,40,40^FB1400,3,0,C,0^FDBBVA^FS^PW640^FPH^FT80,1^A0R,40,40^FB1400,3,0,C,0^FDAsia^FS^XZ"length: 1__proto__: Array(0)

Controller php

public function impresion(Request $request){
        $header = array (
            'Content-Type' => 'application/json; charset=UTF-8',
            'charset' => 'utf-8'
        );

        $listasistente = array (
            0 => 
            array(
                'id' => 1,
                'nombre' => 'Jenry Alonso',
                'apellidos' => 'Liévana Abadía',
                'Taller' => 'BBVA',
                'Aula' => 'Asia',
                'empresa' => 'Ping Pong Innovation',
            ),
            1 => 
            array(
                'id' => 2,
                'nombre' => 'Alan',
                'apellidos' => 'Quintero Velueta',
                'Taller' => 'CISCO',
                'Aula' => 'Tecnologico',
                'empresa' => 'Desarrollo software',
            ),
            2 => 
            array(
                'id' => 3,
                'nombre' => 'Fernanda Grisel',
                'apellidos' => 'López Balcazar',
                'Taller' => 'CISCO',
                'Aula' => 'Tecnologico',
                'empresa' => 'Desarrollo software',
            ),
            3 => 
            array(
                'id' => 3,
                'nombre' => 'Wendy Mariel',
                'apellidos' => 'Vazquez Mazariegos',
                'Taller' => 'MEDICINA',
                'Aula' => 'UNACH',
                'empresa' => 'Desarrollo software',
            ),
        ); 
        $id_ = $request->id;
        foreach($listasistente as $asistente){
            if($asistente['id'] == $id_){
                $asist = $asistente;
            }
        }
        $nombre = $asist['nombre'];
        $apellidos = $asist['apellidos'];
        $nombre_completo = $nombre." ".$apellidos;
        $empresa = $asist['empresa'];
        $aula = $asist['Aula'];
        $taller = $asist['Taller'];
    
        $printer = "^XA";
        $printer.= "^PW640^FPH^FT210,1^A0R,80,80^FB1400,3,0,C,0";
        $printer.= "^FD".$nombre_completo."^FS";
        $printer.= "^PW640^FPH^FT165,1^A0R,40,40^FB1400,3,0,C,0";
        $printer.= "^FD".$empresa."^FS";
        $printer.= "^PW640^FPH^FT120,1^A0R,40,40^FB1400,3,0,C,0";
        $printer.= "^FD".$taller."^FS";
        $printer.= "^PW640^FPH^FT80,1^A0R,40,40^FB1400,3,0,C,0";
        $printer.= "^FD".$aula."^FS";
        $printer.= "^XZ";

        return response()->json([
            'tag' => $printer,
            'error'=>false,
        ], 200, $header, JSON_UNESCAPED_UNICODE);
    }

javacript

function Imprmir(id){
        var impresora = document.getElementById("configPrinter").innerHTML;
        $.ajax({
            type: 'GET',
            url: '/index/impresion',
            data: {
                '_token': $('input[name=_token]').val(),
                'id': id,
            }
        }).done(function(data, response) {
            printZPL(data.tag,impresora);
        }).fail( function(jqXHR, textStatus, errorThrown) {
            if (jqXHR.status === 0) {
                alert('Not connect: Verify Network.');
            } else if (jqXHR.status == 404) {
                alert('Requested page not found [404]');
            } else if (jqXHR.status == 500) {
                alert(errorThrown);
            } else if (textStatus === 'parsererror') {
                alert('Requested JSON parse failed.');
            } else if (textStatus === 'timeout') {
                alert('Time out error.');
            } else if (textStatus === 'abort') {
                alert('Ajax request aborted.');
            } else {
                alert('Uncaught Error: ' + jqXHR.responseText);
            }
        });
        console.log(id);
        //qz.print(config, printData).catch(displayError);
    }

    function printZPL(datos,impresora) {
        var lang = getUpdatedOptions().language;
        console.log(lang);
        return;
        var config = qz.configs.create(impresora,{ encoding: 'CP1252' });
        var printData = [datos];
        qz.print(config, printData).catch(displayError);
        console.log("aquiiii",config,"aquiii2", printData);
    }

Tres Finocchiaro

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Jan 17, 2020, 5:55:37 PM1/17/20

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Some notes, hopefully they help.

If they do not, please send logs over and we'll see if there's something else going on.

It's "Cp1252", not "CP1252" (lowercase "p"). Newer versions of java may correct this, older version of Java may not. For that reason, please switch the code to use the lowercase "p".
Are you calling print() over and over in succession? I can't tell based on the code. If it's one large string with multiple labels, that's good and preferred. If it's
multiple calls to print(), that's going to cause race conditions.
One nice way to test a label is using http://labelary.com/viewer.html. We have a full list of raw printer emulators here: https://qz.io/wiki/printer-emulators#raw
I don't see any reason for the label to be blank although your code shows you using UTF-8 characters "é", "í" but then converted to Cp1252. This technique may work fine. If not, I have some notes below about the special characters...

Special character notes (ignore if they're printing fine):

If the printer supports UTF-8 and you are printing characters with acute accent marks, you should set ^CI28 in the command otherwise you may get "|-®" in place of the "é" character.

^XA
^CI28
^PW640^FPH^FT210,1^A0R,80,80^FB1400,3,0,C,0
^FDJenry Alonso Liévana Abadía^FS
^PW640^FPH^FT165,1^A0R,40,40^FB1400,3,0,C,0
^FDPing Pong Innovation^FS
^PW640^FPH^FT120,1^A0R,40,40^FB1400,3,0,C,0
^FDBBVA^FS
^PW640^FPH^FT80,1^A0R,40,40^FB1400,3,0,C,0
^FDAsia^FS
^XZ

Alternatively, if UTF-8 is not supported, you can use hex notation instead, although the online ZPL parser I'm using doesn't seem to recognize this, so my syntax may be off.

^XA
^PW640^FPH^FT210,1^A0R,80,80^FB1400,3,0,C,0
^FDJenry Alonso Li_E9vana Abad_EDa^FS
^PW640^FPH^FT165,1^A0R,40,40^FB1400,3,0,C,0
^FDPing Pong Innovation^FS
^PW640^FPH^FT120,1^A0R,40,40^FB1400,3,0,C,0
^FDBBVA^FS
^PW640^FPH^FT80,1^A0R,40,40^FB1400,3,0,C,0
^FDAsia^FS
^XZ

Here's the label using UTF-8:

http://labelary.com/viewer.html?density=8&quality=grayscale&width=4&height=6&units=inches&index=0&zpl=%5EXA%0A%5ECI28%0A%5EPW640%5EFPH%5EFT210%2C1%5EA0R%2C80%2C80%5EFB1400%2C3%2C0%2CC%2C0%0A%5EFDJenry%20Alonso%20Li%C3%A9vana%20Abad%C3%ADa%5EFS%0A%5EPW640%5EFPH%5EFT165%2C1%5EA0R%2C40%2C40%5EFB1400%2C3%2C0%2CC%2C0%0A%5EFDPing%20Pong%20Innovation%5EFS%0A%5EPW640%5EFPH%5EFT120%2C1%5EA0R%2C40%2C40%5EFB1400%2C3%2C0%2CC%2C0%0A%5EFDBBVA%5EFS%0A%5EPW640%5EFPH%5EFT80%2C1%5EA0R%2C40%2C40%5EFB1400%2C3%2C0%2CC%2C0%0A%5EFDAsia%5EFS%0A%5EXZ

- Tres.Fin...@gmail.com

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lievano...@gmail.com

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Jan 17, 2020, 7:02:05 PM1/17/20

to qz-print

This is the idea, keep printing blank

Captura de pantalla de 2020-01-17 17-51-38.png

Tres Finocchiaro

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Jan 17, 2020, 7:10:56 PM1/17/20

to lievano...@gmail.com, qz-print

Thanks for the screenshot however the logs should come from the software...

https://qz.io/wiki/faq#logs

On Fri, Jan 17, 2020, 7:02 PM <lievano...@gmail.com> wrote:

This is the idea, keep printing blank

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Tres Finocchiaro

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Jan 20, 2020, 12:17:20 PM1/20/20

to lievano...@gmail.com, qz-print

Hi,

Just checking in to see if you were able to get the logs from the software.

https://qz.io/wiki/faq#logs

- Tres.Fin...@gmail.com

lievano...@gmail.com

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Jan 20, 2020, 4:00:35 PM1/20/20

to qz-print

Hi, yes I found

2020-01-20 14:50:34,343 [DEBUG] Received new certificate from connection through 36196

2020-01-20 14:50:34,409 [DEBUG] Finding preferred Gtk version...

2020-01-20 14:50:34,410 [DEBUG] Found Gtk2

2020-01-20 14:50:34,411 [DEBUG] Initialized Gtk

2020-01-20 14:50:34,411 [DEBUG] Gtk 2.10+ detected, calling "gdk_screen_get_resolution"

2020-01-20 14:50:34,427 [DEBUG] Calculated dialog centered at: java.awt.Point[x=807,y=465]

2020-01-20 14:50:36,261 [INFO] Denied localhost to connect to QZ Tray

2020-01-20 14:50:36,267 [INFO] Connection closed: 1006 - Disconnected

2020-01-20 14:50:36,267 [INFO] Closing all communication channels for localhost

2020-01-20 14:50:50,154 [INFO] Connection opened from /0:0:0:0:0:0:0:1:36332 on socket port 8182

2020-01-20 14:50:50,199 [DEBUG] Message: {"call":"getVersion","promise":{},"timestamp":1579553450190,"uid":"hm5hx1","signAlgorithm":"SHA512","position":{"x":993.5,"y":553.5}}

2020-01-20 14:50:50,199 [DEBUG] Message:

2020-01-20 14:50:50,204 [DEBUG] Received new certificate from connection through 36332

2020-01-20 14:50:50,205 [DEBUG] Finding preferred Gtk version...

2020-01-20 14:50:50,206 [DEBUG] Found Gtk2

2020-01-20 14:50:50,207 [DEBUG] Initialized Gtk

2020-01-20 14:50:50,207 [DEBUG] Gtk 2.10+ detected, calling "gdk_screen_get_resolution"

2020-01-20 14:50:50,207 [DEBUG] Calculated dialog centered at: java.awt.Point[x=812,y=465]

2020-01-20 14:50:51,405 [INFO] Allowed localhost to connect to QZ Tray

2020-01-20 14:50:51,407 [DEBUG] Message: {"call":"getVersion","promise":{},"timestamp":1579553451407,"uid":"9pibxx","signAlgorithm":"SHA512","position":{"x":993.5,"y":553.5}}

2020-01-20 14:50:51,408 [WARN] Bad signature on request

2020-01-20 14:51:05,736 [DEBUG] Message: {"call":"printers.find","promise":{},"params":{"query":"LK-B24"},"timestamp":1579553465732,"uid":"3jbpxx","signAlgorithm":"SHA512","position":{"x":993.5,"y":553.5}}

2020-01-20 14:51:05,737 [WARN] Bad signature on request

2020-01-20 14:51:05,762 [DEBUG] Finding preferred Gtk version...

2020-01-20 14:51:05,763 [DEBUG] Found Gtk2

2020-01-20 14:51:05,763 [DEBUG] Initialized Gtk

2020-01-20 14:51:05,763 [DEBUG] Gtk 2.10+ detected, calling "gdk_screen_get_resolution"

2020-01-20 14:51:05,763 [DEBUG] Calculated dialog centered at: java.awt.Point[x=804,y=465]

2020-01-20 14:51:06,852 [INFO] Allowed localhost to access connected printers

2020-01-20 14:51:06,854 [DEBUG] Searching for PrintService matching LK-B24

2020-01-20 14:51:07,029 [DEBUG] Found 2 printers

2020-01-20 14:51:07,030 [DEBUG] Found match: LK-B24

2020-01-20 14:51:09,148 [DEBUG] Message: {"call":"print","promise":{},"params":{"printer":{"name":"LK-B24"},"options":{"colorType":"color","copies":"1","density":"","duplex":false,"fallbackDensity":null,"interpolation":"","jobName":"","legacy":false,"margins":"0","orientation":"","paperThickness":"","printerTray":"","rasterize":false,"rotation":"0","scaleContent":true,"size":null,"units":"in","altPrinting":false,"encoding":"","endOfDoc":"","perSpool":"1"},"data":["^XA^CI28^PW640^FPH^FT250,300^A0R,80,80^FB600,3,0,C,0^FD Jenry Alonso Liévano Abadía2.0.11-1^FS^XZ"]},"timestamp":1579553469143,"uid":"u8gah1","signAlgorithm":"SHA512","position":{"x":993.5,"y":553.5}}

2020-01-20 14:51:09,149 [WARN] Bad signature on request

2020-01-20 14:51:09,162 [DEBUG] Finding preferred Gtk version...

2020-01-20 14:51:09,162 [DEBUG] Found Gtk2

2020-01-20 14:51:09,163 [DEBUG] Initialized Gtk

2020-01-20 14:51:09,163 [DEBUG] Gtk 2.10+ detected, calling "gdk_screen_get_resolution"

2020-01-20 14:51:09,163 [DEBUG] Calculated dialog centered at: java.awt.Point[x=812,y=465]

2020-01-20 14:51:10,188 [INFO] Allowed localhost to print to LK-B24

2020-01-20 14:51:10,247 [DEBUG] Allowing 8 simultaneous processors based on memory available (4175 MB)

2020-01-20 14:51:10,250 [DEBUG] Using qz.printer.action.PrintRaw to print

2020-01-20 14:51:10,250 [DEBUG] Searching for PrintService matching LK-B24

2020-01-20 14:51:10,363 [DEBUG] Found 2 printers

2020-01-20 14:51:10,363 [DEBUG] Found match: LK-B24

2020-01-20 14:51:10,372 [WARN] Cannot read as a double for density, using default

2020-01-20 14:51:10,372 [WARN] Cannot read as a valid value for interpolation, using default

2020-01-20 14:51:10,374 [WARN] Cannot read as a valid value for orientation, using default

2020-01-20 14:51:10,375 [WARN] Cannot read as a double for paperThickness, using default

2020-01-20 14:51:10,425 [DEBUG] Executing: [lpstat, -a]

2020-01-20 14:51:10,483 [DEBUG] Executing: [lpoptions, -p, LK-B24, -l]

2020-01-20 14:51:10,623 [DEBUG] Executing: [lpoptions, -p, Unknown, -l]

2020-01-20 14:51:10,769 [WARN] Cannot read null as a double for fallbackDensity, using default

2020-01-20 14:51:10,810 [DEBUG] PrintEvent on sun.print.UnixPrintJob@756ea8d9

2020-01-20 14:51:10,820 [DEBUG] PrintEvent on sun.print.UnixPrintJob@756ea8d9

2020-01-20 14:51:10,821 [INFO] Printing complete

2020-01-20 14:51:40,070 [INFO] Connection closed: 1005 - null

2020-01-20 14:51:40,071 [INFO] Closing all communication channels for localhost

2020-01-20 14:51:40,075 [WARN] The web socket server is no longer running

2020-01-20 14:51:53,599 [DEBUG] Executing: [gsettings, get, org.gnome.desktop.interface, gtk-theme]

2020-01-20 14:51:53,609 [DEBUG] Executing: [gsettings, get, org.gnome.desktop.interface, gtk-theme]

2020-01-20 14:51:53,976 [DEBUG] Executing: [uname, -a]

2020-01-20 14:51:53,978 [DEBUG] Executing: [gconftool-2, --get, /desktop/gnome/shell/windows/theme]

2020-01-20 14:51:53,983 [DEBUG] Executing: [grep, dark_bg_color, /usr/share/themes/Ambiance/gtk-3.0/gtk.css]

2020-01-20 14:51:53,984 [DEBUG] Executing: [grep, dark_bg_color, /usr/share/themes/Ambiance/gtk-3.0/gtk-main.css]

2020-01-20 14:51:54,009 [INFO] Main properties file /opt/lampp/htdocs/imprimironline/qz-tray.properties

2020-01-20 14:51:54,010 [WARN] Failed to load properties file!

2020-01-20 14:51:54,010 [WARN] Unable to determine path to certificate. Secure websockets will not function on certain browsers.

2020-01-20 14:51:54,188 [INFO] Main properties file /opt/lampp/htdocs/imprimironline/qz-tray.properties

2020-01-20 14:51:54,189 [WARN] Failed to load properties file!

2020-01-20 14:51:54,238 [DEBUG] Using trusted root certificate: CN=qzindustries.com, O=QZ Industries, LLC (8ef2c0b2fe3f75754245b3fb9d54c0caa1b46bb3)

2020-01-20 14:51:54,238 [INFO] Loading CRL from https://crl.qz.io

2020-01-20 14:51:54,347 [DEBUG] Finding preferred Gtk version...

2020-01-20 14:51:54,348 [DEBUG] Found Gtk2

2020-01-20 14:51:54,404 [DEBUG] Initialized Gtk

2020-01-20 14:51:54,405 [DEBUG] Gtk 2.10+ detected, calling "gdk_screen_get_resolution"

2020-01-20 14:51:54,418 [INFO] Main properties file /opt/lampp/htdocs/imprimironline/qz-tray.properties

2020-01-20 14:51:54,419 [WARN] Failed to load properties file!

2020-01-20 14:51:54,455 [WARN] Could not start secure WebSocket

2020-01-20 14:51:54,754 [DEBUG] Checking for a running instance of QZ Tray on port 8283

2020-01-20 14:51:54,857 [INFO] Successfully loaded 2 CRL entries from https://crl.qz.io

2020-01-20 14:51:54,886 [DEBUG] Checking for a running instance of QZ Tray on port 8384

2020-01-20 14:51:54,895 [WARN] WebSocket error

java.net.ConnectException: Conexión rehusada

at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779)

at org.eclipse.jetty.io.SelectorManager.finishConnect(SelectorManager.java:340)

at org.eclipse.jetty.io.SelectorManager$ManagedSelector.processConnect(SelectorManager.java:675)

at org.eclipse.jetty.io.SelectorManager$ManagedSelector.processKey(SelectorManager.java:644)

at org.eclipse.jetty.io.SelectorManager$ManagedSelector.select(SelectorManager.java:611)

at org.eclipse.jetty.io.SelectorManager$ManagedSelector.run(SelectorManager.java:549)

at org.eclipse.jetty.util.thread.NonBlockingThread.run(NonBlockingThread.java:52)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)

at java.base/java.lang.Thread.run(Thread.java:834)

2020-01-20 14:51:54,988 [DEBUG] Checking for a running instance of QZ Tray on port 8485

2020-01-20 14:51:54,991 [WARN] WebSocket error