The link to this Ringo was posted in the FB Top Beatles Collectors FB group, where it was offered for $150:
Look close and you'll see that it has the characteristics of laser printing that at first you might dismiss as JPG artifacts.
This is likely by a process called laser ink transfer. A high-resolution image is scanned or photographed and reversed to a mirror image. It's printed on laser ink transfer paper, placed on the target surface, heated, like with a hairdryer, until it transfers over, then the paper it's on is carefully lifted off.
What are the specific characteristics you are referring to? This makes spotting forgeries even harder, as the signatures themselves are real, they have just been recreated and affixed to the item. Makes you not even want to touch anything without pen indentations.
In this case, they used an averge-quality laser printer so it's easy to tell when you zoom in. The lower image, the crop, will enlarge a bit more.
Zoom in on the background and I think you'll see that the image the autograph is signed on, a 3x5 what looks to be index card, is a low-quality, heavily degraded JPG. Very mushy. The image on the card alone is very low quality. No doubt downloaded from the internet.
The autograph is much crisper than the background image. What identifies the autograph as laser printed is that it's solid black in the heavy black areas, but the areas where the signature is lighter has tiny fine lines of black ink next to fine lines with no ink, all uniform.
Hope I explained it well but I'm heading out shortly.
Without seeing it in person I can't tell if the signature was laser printed on the card or laser ink transfer was used. But you can identify these if you know what to look for.