Thank you Addison. I also found this set of instructions for downgrading:
https://www.linuxuprising.com/2019/02/how-to-downgrade-packages-to-specific.html
- Bug#953104: hplip: After upgrade to versio... Brian
- Bug#953104: hplip: After upgrade to ve... Brad Rogers
- Bug#953104: hplip: After upgrade t... Brian
- Bug#953104: hplip: After upgra... Brad Rogers
- Bug#953104: hplip: After ... Brian Potkin
- Processed: Re: Bug#95... Debian Bug Tracking System
- Bug#953104: hplip: Af... Brad Rogers
- Bug#953104: hplip: After upgra... Brad Rogers
- Bug#953104: How to downgrade to HPLIP version 3... sixerjman
- Bug#953104: How to downgrade to HPLIP vers... Adilson dos Santos Dantas
- Bug#953104: How to downgrade to 3.19 sixerjman
- Bug#953104: Upstream issue link? sixerjman
- Bug#953104: Upstream issue link? Brad Rogers
- Bug#953104: marked as done (hplip: After upgrad... Debian Bug Tracking System
- Bug#953104: marked as done (hplip: After upgrad... Debian Bug Tracking System
