Allows to print ZPL to a network connected Zebra printer.
Zebra Printing Extension
Most Zebra Printers have a HTTP POST endpoint through which ZPL can be directly printed without the need for an installed driver, print dialogs popping up or other locally installed software.
Unfortunately those printers don't set any CORS headers which makes it impossible to use this HTTP endpoint in modern browser-based apps.
This extension circumvents this issue.
In your web app you can now directly print to Zebra printers by using window.postMessage():
window.postMessage({
type: \"zebra_print_label\",
zpl: \"^XA^PW400^LL200^FO20,20^A0N,30,30^FDThis is a TEST^FS^XZ\",
url: \"http://192.168.37.36/pstprnt\"
}, \"*\");
The Zebra Printing extension will listen to those messages and print the zpl to the url.
type: The extension will only pick up messages where the type is zebra_print_label
zpl: The ZPL string to be printed
url: The URL of the printer
The extension will also post a message to the web page upon loading. This way in your web app you can check if the extension is installed:
window.addEventListener(\"message\", function (event) {
if (!event.data.ZebraPrintingVersion) {
return;
}
// extension installed, enable print button or whatever...
console.log(event.data);
});
The event will contain two fields:
ZebraPrintingExtensionId: The extension ID (ndikjdigobmbieacjcgomahigeiobhbo)
ZebraPrintingVersion: The version number of the installed extension
A simple example can be found here:
https://danielnitz.github.io/zebra-printing-chrome-extension/web-app-example/index.html
Source Manifest.json
How to download and manually install Zebra Printing extension for Chrome
Looking for a way to install Zebra Printing extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.
However, you may need to install Zebra Printing extensions manually, this article outlines two simple methods to effortlessly install Zebra Printing extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.
Method 1: Download Zebra Printing extension and manually install through Drag &Drop
If you ever need to manually install a Zebra Printing extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.
Step 1: Download the Zebra Printing Extension by clicking the "Download CRX" button on the website.
Look for the Zebra Printing extension you wish to install. Go to the website and download the Zebra Printing extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Zebra Printing extension that contains all the data.
Step 2: Extract &Arrange Files
Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.
Step 3: Go to the Chrome Extensions Page
Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.
Step 4: Drag and Drop the Extension
Now, go to the folder where you extracted the Zebra Printing extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.
Step 5: Complete the Installation
Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.
Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.
Method 2: Download Zebra Printing extension for Chrome and install in Developer Mode
This is another method to install Zebra Printing extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.
Step 1: Download the Zebra Printing extension file
Select and download the Zebra Printing extension by clicking the 'Download CRX' button on the website.
Step 2: Extract the downloaded contents
Convert the file to a ZIP file if it is in CRX format then extract the Zebra Printing extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Zebra Printing extension running.
Step 3: Open Chrome Extension Setting Page
In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.
Step 4: Enable Developer Mode
After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.
Step 5: Load the Unpacked Extension
Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."
Step 6: Select the Extension Folder
Once the pop-up opens upon clicking Load unpacked, select the Zebra Printing extension directory and click on the "Select Folder "button.
Step 7: Confirm and Install
After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.
Conclusion
Here we've made a step-by-step guide on How to manually install Zebra Printing extension in 2 ways. We hope this guide proves helpful.
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