条形码不扫描 [英] barcode not scanning

问题描述

使用免费的3 of 9字体生成条形码，但即使在使用* ....等开始和停止字符后也不会扫描它。

The Barcode is generated using free 3 of 9 font but its not being scanned even after using start and stop characters like * ....

推荐答案

这里有几种可能性：

1）条形码无法扫描。

2）条形码扫描器没有读取代码。



所以你需要做的第一件事是找出哪个。

扫描一个已知良好的代码 - 最好是Code 39（9个条形码中有3个的正常名称），但是开始如果你不得不用一包豌豆。扫描仪是否读取它？

如果是，请找到Code 39条形码并扫描。 Wiki页面有两个： http://en.wikipedia.org/wiki/Code_39 [ ^ ] - 虽然在第二个例子中静区看起来有点薄。

读取了吗？



如果确实如此，那么您的代码就会出现问题 - 您需要查看文档。尝试打印与Wiki相同的Code 39 - 您能看到明显不同的东西吗？



如果没有，请检查您的扫描仪 - 它可能是设置的不读取Code 39（有些被设置为只读取特定的代码类型 - 例如ITF，或者只有Traded Unit代码）。请参阅扫描仪文档。

There are a couple of possibilities here:
1) The barcode is unscannable.
2) The barcode scanner is not reading the code.

So the first thing you need to do is find out which.
Scan a known-good code - preferably a Code 39 (normal name for 3 of 9 barcodes), but start with one from a packet of peas if you have to. Does the scanner read it?
If it does, then find a Code 39 barcode and scan that. The Wiki page has a couple: http://en.wikipedia.org/wiki/Code_39[^] - though the quiet zones do look a little thin on the second example.
Does that read?

If it does, then you have a problem with your code - and you need to look at the documentation. Try printing the same Code 39 as you got from Wiki - can you see anything obviously different?

If it doesn't, then check your scanner - it may be setup not to read Code 39 (some are set to read only specific code types - ITF for example, or Traded Unit codes only perhaps). See your scanner documentation.

请参阅同一问题&回答这个主题条形码字体30号及以下尺寸未被扫描仪读取 [ ^ ]

Refer to this same question & answer on this topic Barcode font size 30 and below not read by the scanner[^]

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