I have a HP MFP127fw. It's "supported" by Ubuntu 17.10 - except print jobs will not release from the print que because a special copywrited driver for HP is not installed.
I went through this with 16.10 and had to install a small HP driver that I found with Synaptic. Then the jobs would release. It isn't part of HPLIPS.
Apparently Ubuntu 17,10 version doesn't run synaptic due to Wayland. Where can I find this driver?