In this specific case though, as it's an HP manual, if it's one of the ones
that went with Agilent (now Keysight) then they seem to have an enlightened
attitude and make their old manuals available and also point to a whole
bunch of other places that do the same. So they may well be OK with someone
making a manual available ... although I don't see any explicit evidence
that they'd be OK with someone *selling* a PDF of one of their historic
manuals.
This was a HP plotter at the end of it's service life (not a current
model), and this entire thing happened some 12 years ago :-) But the file
might still be on my broken home page... hmmm
Hah, yep:
https://users.757.org/~ethan/me_bookshelf/
Looks like my notes on it were HP said it's discontinued and wouldn't talk
about the machine at all. Zero. Zilch. 650C was the model.
I also posted on the same web page all of the Lucent Legend manuals. At
the time Lucent had them all available for download for free from their
ELMO system, but it wasn't picked up by google or the like. BUT, there was
a lot of people charging $100-$200 for the pdf files that they downloaded
from ELMO, telling people it wasn't freely available and for purchase
only.
The only one who gets use of the manuals is someone who owns the hardware,
and the hardware comes with the manuals. *Shrug*
