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c#.netusbzebra-printers

How to query Zebra printer magnetic card reader over USB

I'd like to write a simple C# app to collect the output of a Zebra printer's magnetic card reader. (Model RW420) My only interface to the device is USB. The CPCL language specifies an MCR command for this purpose, but I cannot figure out how to issue this command to the printer via .NET. Neither the online documentation nor support staff can tell me. Does anyone have an idea?

Solution

  • You need to write native code in order to read back from USB (using pInvoke). You need to find the usb device path with Zebra's vendor ID in it. You would pass this device path to CreateFile
    see: MSDN Create File