The pattern isn't a low fuser temp/voltage issue, if it was it would flake off in a powder and look almost splotchy.
Bad corona wires cause dark/light spots, but I haven't seen anything nearly that patterned/consistent.
Looks like you can buy a fuser for $300+ but that's a lot to throw in the parts cannon, and I think it looks more like a transfer issue rather than a fuser issue.
I have had some odd issues with individual brands/types of paper, I don't think that would be the issue here, But that is a really easy, cheap test to try.