How to count a label from a sheet?

Question

Electronics

Essence of the question: we have a paper form with a certain label, it is necessary to read this label in some way (for the future, determine what kind of form we have).
To make it easier to understand why all this is a device, let's take a slender printer: a sheet is submitted, something, a la PG, finds a mark, possibly determines what kind of form was submitted (Mb qr-code) and calibrates the device relative to the mark on the sheet (let's say the top and left edges images per sheet)
The solution should be relatively small and, of course, the cheaper the better.

Answer 1

Webcam + MK + QR code recognition program?