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Questions tagged [qz-tray]

Use the qz-tray tag for questions relating to QZ-Tray, a industry printing software and more for your web browser.

What is QZ Tray? It's a cross-browser, cross-platform plugin for printing (and talking to serial/usb devices. Developed by QZ Industries, LLC a small software development company, owned and operated by Tres Finocchiaro and Lite Finocchiaro and operates out of Canastota, NY.

Industry printing and more from your web browser.

38 questions
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QZ Tray raw Printing

This is my very first question. How can i run an "IF STATEMENT" in side the raw code of QZ tray where Var = print data []; The below code works wonderful without IF STATEMENT, but the codes cannot parse once i use it. var printData = [ …
codemax
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qz-tray sha-256 not defined

I am trying to print the simple data text using Angular and Qz-Tray. But everytime I try to Print the error is displayed: qz-tray.js:35 ReferenceError: Sha256 is not defined at Object.hash (qz-tray.js:408) at…
Shubham Shah
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Qztray HTML file printing issue, html print left side of the page

I am trying to print the HTML file using QZtray 2.0. File is printing on the left side of the page. I have set the height and width too, but same issue. function printHTML() { var printData = [ { type: 'html', format:…
mayank
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how to write hexadecimal escape sequence bigger than 7 bit (7F) in javascript array so correctly interpreted by ESC/P printer?

I'm working with QZ tray to do raw printing with ESC/P (not ESC/POS) printer 9pin [1]. Basically everything works fine, until I have to set absolute horizontal position (ESC $). the problem same with [2], but it use Java, and QZ tray using…
oon arfiandwi
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QZ tray printing to multiple printers

I have been trying to print to multiple printers with QZ tray using the examples provided here https://qz.io/wiki/2.0-Raw-Printing#promise-loop but I am getting an error saying TypeError: Cannot read property 'sendData' of null I have…
Crash Override
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Printing barcodes with QZ-Tray

I'm trying to print barcode with QZ-Tray however I can't seem to find a good example for this, I've tried the code from here https://groups.google.com/forum/#!topic/qz-print/5ybFBj4S9LA where is starts with this code: qz.appendHex('x1Bx40'); // init…
quarks
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QZ dot matrix printing on EPSON LQ-50 raw print issue

I am using EPSON LQ-50 Dot matrix printer to print a receipt the height is 10cm and width is 15 cm , I have tried 2 ways i.e HTML Print and other is RAW print but in both the cases the the printer behavior is different , Case 1: (HTML) In qz…
Ajit Hogade
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QZ-Tray showing website as untrusted on the pop-up when trying to connect and print

I am trying to use QZ-Tray to print labels at a terminal in my workshop. I have all of the program working however I want to remove the annoying '... wants to connect to QZ Tray Untrusted Website' pop-up. I have installed the certificate and the…
Jackawan
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