so Jurgen I can't find the CP1025 listed on HP's list of printers
https://developers.hp.com/hp-linux-imag ... ices/index but one's like the HP Color LaserJet cp1215 Printer all are listed are "requiring" the plug-in; as you say;
but HP would advise I think that you open a terminal; (the black TV screen on the bottom line .......)
and type
there; and hit the ENTER key; after that you can do
and see if all is good; ..... please post back what you get so we can see if you need us to;
then if you type
that should let the system register the printer; if we see how things get along .......