Thanks Till and Dave, the offered 55-hpmud.rules file fixes the error! I copied it manually to /etc/udev/rules.d and it works now.
My DeskJet 930C is detected correctly in system-config-printer and after installing it, I can open HP Toolbox. Bug is fixed from my point of view.
By the way - the newest drivers seem to fixed another problem with my printer. I thought hardware is damaged because it did not sound good when making line feeds and printout quality was not very good. But these problems seem to be fixed, too.
Thanks Till and Dave, the offered 55-hpmud.rules file fixes the error! I copied it manually to /etc/udev/rules.d and it works now.
My DeskJet 930C is detected correctly in system- config- printer and after installing it, I can open HP Toolbox. Bug is fixed from my point of view.
By the way - the newest drivers seem to fixed another problem with my printer. I thought hardware is damaged because it did not sound good when making line feeds and printout quality was not very good. But these problems seem to be fixed, too.