I don't normally recommend this, but in this case, it may be easiest to install the hplip from the mx linux test repo (currently 3.17.10).
first add the source to /etc/apt/sources.list.d/mxtest.list
Code:
deb http://mxrepo.com/mx/testrepo/ stretch test
then update sources
and install hplip.
Code:
apt-get install hplip
make sure that nothing is being removed from antiX, so read carefully!
then REMOVE the mxtest.list file
Code:
rm /etc/apt/sources.list.d/mxtest.list
and update your sources again to put things back to the way they were originally
after that you should be able to setup your printer in either the hp gui or with
in the terminal. for scanning, you'll probably need to allow installation of a plugin, which the setup routine should find for you. You will see messages that our distro is not supported, just ignore them, at this level is still debian.