In the Maintenance Module:
1. Under Maintenance in the left grey bar, click on Assets.
2. Select the Asset Group which contains the Asset for which you want to download the QR Code.
3. Click on Assets in the top grey bar.
4. Select the Asset for which you want to download the QR Code.
5. Click on the Cloud in the top blue bar and select QR Code.
You will download a PDF file with the QR code.