HP Laserjet Pro MFP M127fn not able to print

Well I will opt for the reinstall of Opensuse KDE and go from there. Thanks for all your help.

If, after having done that it still does not print then we may need to examine the CUPS error log, since you mentioned that the printer appears to be receiving print data but that nothing is actually printed. It is often helpful to increase the CUPS logging verbosity first.

To do this, open a terminal, and type the following

sudo cupsctl --debug-logging
sudo systemctl restart cups

Then send a print job and examine /var/log/cups/error_log for any error messages.