gnus-summary-print-article).
gnus-ps-print-hook will be run just before
printing the buffer. An alternative way to print article is to
use Muttprint (see Saving
Articles).<backend>-fetch-partial-articles is
non-nil, Gnus will fetch partial articles, if the
backend it fetches them from supports it. Currently only
nnimap does. If you're looking at a partial
article, and want to see the complete article instead, then the
A C command
(gnus-summary-show-complete-article) will do
so.