"The best long term backup strategy is a string of robust middle term solutions." This was for me the most insightful comment I read (as far as I can remember) on Tim Bray's blog[0] many years ago.
Have NEVER heard of this
The trick is to do your research on the printer and toner to make sure they have a high quality finish.
For paper, a heavier than normal printer paper (like 40lb text paper instead of the normal 20 or 28 lb) that has some percentage of cotton in it can last for hundreds of years if you store it in an airtight container.
I haven't experimented with work arounds but perhaps separating with wax paper or parchment might be helpful.
That's bullshit.
It's the other way around. Inkjet fades out and gets washed off by a little bit of moisture, while dot-matrix "just" fade out.
Don't skimp on toner and paper, don't get it to rot and it'll last centuries.
My stuff printed on HP LJ 4 in late 90s is still as good as new.
My understanding is that until recently the UK was printing laws on vellum, for maximum archival durability... but they printed onto the vellum using a normal laser printer. So it must be pretty durable? A laser printer uses simple carbon, rather than complex inks.
No, it uses what's basically a fine plastic powder. By mass it's mostly carbon, yes.