You are using the hpijs drivers again which has certain issues with it and it is getting deprecated.
Recommend you to use hpcups drivers.
Please launch the terminal and go to the directory hplip-3.12.2 (source folder) and run configuration
./configure - -prefix=/usr - -libdir=/usr/lib
This will configure and enable hpcups install. Next run
make ; sudo make install
Post us the output of "hp-check -t" command to check if it has configured hpcups correctly.
Remove the existing print queues for this printer from "system-config-printer" and run command "hp-setup -g" and make sure it picks hp-color_laserjet_3600.ppd PPD file.
Thanks for the logs
You are using the hpijs drivers again which has certain issues with it and it is getting deprecated.
Recommend you to use hpcups drivers.
Please launch the terminal and go to the directory hplip-3.12.2 (source folder) and run configuration
./configure - -prefix=/usr - -libdir=/usr/lib
This will configure and enable hpcups install. Next run
make ; sudo make install
Post us the output of "hp-check -t" command to check if it has configured hpcups correctly.
Remove the existing print queues for this printer from "system- config- printer" and run command "hp-setup -g" and make sure it picks hp-color_ laserjet_ 3600.ppd PPD file.