Comment 10 for bug 1788706

I just solved a problem very similar to this in Debian. To solve it, I added "oldstable" to my Debian sources.list and then I was able to downgrade several packages. I downgraded:

printer-driver-hpcups to 3.16.11+repack0-3

ghostscript, ghostsctipt-x, libgs9, libgs9-common to 9.26a~dfsg-0+deb9u2