there is no way from an image to detect whether HI prints the background, borders and BC specific information all at once, or whether the background and borders are pre-printed on stock paper. Digital images cannot tell you that, only the original can.That's wrong, I'm pretty certain. At least speaking as a non-expert, but just a educated person, I'd think that yes you can tell what was printed by one type of printer and what by another, what kind of printer was used and even make a good guess about what the ink was and what the paper used was. Even from a digital image. Why? Because you have repeating patterns and you can do an ensemble analysis and get orders of magnitude better resolution than the pixel count would indicate. Again -- I'm no expert!
“. Again — I’m no expert!”
That part I can agree it. No, its impossible to have more resolution than the pixel count provides, I speak as someone knowledgable in Computer Science, that’s just a fundamental of how digital images work. You should trust AJ Strata more than your own judgement on that point.
At most, you can argue that with sufficient pixel resolution, you can detect method of printing due to how the printing resolves on the image, but thats about it.