Solution of a sorts I ended up with looks like this:
PDF Generator
# {{ selectTestTypeQR.selectedLabel }} {{generateQRCode.data }}
||||
| ----------- | ----------- |----------|
||  ||
Where qrCodeAIPFetchedImage.src is a 1000X1000 QR code fetched from here: https://api.qrserver.com/v1/create-qr-code/?size=1000x1000&data=
This ends you with a centered QR code in the middle of the pdf that prints nicely on my 2824. Word of caution: avoid Crome's built in print manager. It can't properly scale or zoom. Use os builti-n print service.
