We have a Zebra ZXP series 7 printer connected via usb to our application on Windows 10 and it works fine if it is the only printer connected. If we have another printer (normal paper printer) connected to a different USB Port, although the Zebra printer is recognized, when we call job.Open(name) we get an exception :

Open Failed (65004) - SDK: Device not responding

If we disconnect the second printer then we don't have the problem.

We are using ZMotif SDK (32/64 bit) v. 3.6.0.55.
ZMotifPrinter.dll v 4.2.4100.5

Thanks,
Jeronimo