Zebra Printingとは何ですか？

Zebra PrintingはDaniel Nitzによって開発されたChromeの拡張機能で、その主な機能は「Allows to print ZPL to a network connected Zebra printer.」です。

拡張機能のスクリーンショット

Zebra Printing拡張機能のCRXファイルをダウンロード

Zebra Printing拡張子のファイルをcrx形式でダウンロードし、ブラウザにChrome拡張機能を手動でインストールするか、crxファイルを友達と共有して簡単にChrome拡張機能をインストールします。

拡張機能の使用方法

NOTE: This is an extension useful for developers who want to simply print ZPL labels directly from their web apps.

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

拡張機能の基本情報

名前	Zebra Printing
ID	ndikjdigobmbieacjcgomahigeiobhbo
公式URL	https://chromewebstore.google.com/detail/zebra-printing/ndikjdigobmbieacjcgomahigeiobhbo
説明	Allows to print ZPL to a network connected Zebra printer.
ファイルサイズ	219 KB
インストール数	7,009
現在のバージョン	1.2
最終更新日	2020-07-08
公開日	2019-10-04
評価	5.00/5 合計 3 レビュー
開発者	Daniel Nitz
Eメール	[email protected]
支払い方法	free
拡張機能のウェブサイト	https://github.com/danielnitz/zebra-printing-chrome-extension
ヘルプページのURL	https://github.com/danielnitz/zebra-printing-chrome-extension/issues
対応言語	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "name": "Zebra Printing", "version": "1.2", "description": "Allows to print ZPL to a network connected Zebra printer.", "icons": { "128": "zebra128.png" }, "author": "Daniel Nitz", "permissions": [ "", "background", "activeTab" ], "content_scripts": [ { "matches": [ "" ], "js": [ "content.js" ] } ], "background": { "scripts": [ "background.js" ], "persistent": false }, "browser_action": [], "offline_enabled": true }