Hi folks, don't worry, this isn't a "how do I print a barcode" type question, I have my labels printing as required, they are a mix of static images and text and dynamic text and QR codes. I'm using the Zebra drivers and simply send my file containing the ZPL code to the printer using the System Exec.vi to a shared printer (connected via USB). What I would like to find a way to do is to get some data back from the printer so I can check that the correct fonts have been uploaded to the printer and that they have been assigned the correct Font identifier (^CW command). I can easily do this from the Zebra setup utilities, I open communications with the printer, send the following command: ^XA^HWE:*.*^XZ and get back a list of installed fonts: - DIR E:*.* * E:OPE000.TTF 217360 W * E:OPE001.TTF 224592 X * E:OPENSANS-BOLD.TTF 224592 * E:OPENSANS-REGULAR.TTF 217360 * E:TT0003M_.TTF 169188 - 66054656 bytes free E: ONBOARD FLASH What I'm struggling with is a way of getting the data back from the printer via LabVIEW. I can send the ^XA^HWE:*.*^XZ command in a ZPL file via the System Exec but nothing helpful is returned, just " 1 file(s) copied." via the Standard Output. I'm using Windows 10 and LabVIEW 2017. cheers.

@RaptorUK wrote: @Mark_Yedinak wrote: Crete a virtual folder named "resource" in your project. Add the file c:\Program Files (x86)\National Instruments\LabVIEW <VERSION>\resource\lvimptsl.dll to the virtual folder. In your application builder add this to the Always Include section. Also, just to confirm you, your are using the 32 bit version of LabVIEW. I doubt very much this USB library will work in the 64 bit version. Hi Mark, finally got the printer back and had a look this morning . . . so I added the lvimpts.dll to a virtual folder and then added it to the always include section I rebuilt the EXE and . . . the printer isn't found by name. From the Dev environment . . . . . . the same dialogue shows the printer is found by name. Did you add it to a virtual folder named "resource"? Also, did you include the resource folder as a destination in the build spec? You can also try an experiment and go to the folder where you placing the application (exe) and se if the resource folder with the lvimptsl.dll file is there. If not, try copying it there and run your application again. If this doesn't work, the add some debug code to your application to output all of the results of the printer enumeration. Compare this with what you see in the development environment.

Here is a USB driver for direct communication with the printer via USB. This is posted as-is. This works quite reliability though there are some issues if you try communicating to multiple printers at the same time in the same application. Communicating with a single printer works quite well. The DLL file should be placed in the folder c:\ProgramData\ZebraTools\Drviers. You may also need to place a copy of the lvzlib.dll file in the same folder. I don't recall where the normal location where that DLL can be found.