At work we no longer could print to the office HP LaserJet M201dw. The result was always a blank page. I was informed that printing at one time worked, but printing to that printer had been broken for a while. The printer is connected by network and not parallel port or USB.
I ran the
hp-doctor command. I was informed a boat load of packages needed to be installed. I am not much of a betting person, but this time I was willing to bet that after installing packages the result would still be a blank page.
I should have found somebody to take the bet.
I booted into a Debian 10 system. After adding the office printers I had no problems printing to the M201dw.
Eventually I found a protocol difference in
printers.conf. That resolved the issue.
I removed the superfluous packages.
I have no idea how the setting changed.