创建 ZPL 以使用 JAVA 打印 PNG 图像 [英] create ZPL to print a PNG-image with JAVA

问题描述

我想创建一个 ZPL2-Code，用于打印给定的 PNG 图像.我试过例如Labelary Online (http://labelary.com)，但我无法创建正确的图像编码.我将 PNG 转换为黑白图像，将字节数组转换为十六进制字符串并像这样插入:

I want to create a ZPL2-Code, that prints a given PNG-Image. I tried e.g. Labelary Online (http://labelary.com), but I am not able to create the correct image-coding. I converted my PNG to a b/w-image, converted the byte-array to a Hex-String and inserted it like this:

ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bwImage, "png", baos);
byte[] bytes =  baos.toByteArray();
System.out.println("^XA^GFA," + bytes.length + "," + bytes.length + "," + bytes.length / 8 + "," + getHexString(bytes) + "^XZ");

这适用于 Labelary-Online-Preview，但不适用于真正的打印机.第二点是，当我在 Labelary-Website 上插入图像时，十六进制字符串看起来与我的有很大不同.(它甚至不是十六进制字符串).

This works for the Labelary-Online-Preview, but not with real printer. A second point is, that when I insert an image on the Labelary-Website the Hex-String looks a lot different then mine. (It is even no Hex-String).

推荐答案

我用过 http://labelary.com作为内嵌图像转换器.我使用添加图像"，然后选择图像数据，并将其保存到 *.grf 文件中.

I have used http://labelary.com as an inline image converter. I use the 'Add Image', then select the image data, and save that out to a *.grf file.

如果您不想使用 Labelary，也可以使用 Zebra Setup Utilities，并将图像转换为 *.grf，参考这篇文章:https://km.zebra.com/kb/index?page=content&id=SO7892.

If you don't want to use Labelary, you can also use the Zebra Setup Utilities, and convert the image to *.grf, following this article: https://km.zebra.com/kb/index?page=content&id=SO7892.

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