On Sat, 9 Oct 2004, Vintage Computer Festival wrote:
Be careful
with laser-printed documentation in ring binders too; the
text has a habit of sticking to the underside of the binder's cover for
some reason - stick a blank sheet of paper in there to protect it.
I'm sure by now this has been discussed extensively but it seems to me any
photocopied or laser printed page tends to stick to what is adjacent to
it, which is why manuals of this type should always be stored vertically.
But there is also a chemical reaction (from outgassing of plasticizer?)
that makes the toner stick to the cover of PVC binders much more than
to most other substances.