Some of the files to printed are not readable by the KDE print daemon. This may happen if you are trying to print as a different user to the one currently logged in. To continue printing, you need to provide root's password.
Guon fan de te printsjen triemmen binne net lêsber foar de KDE printdaemon. Dit kin barre as jo besykje te printsjen ûnder in oare brûkersnamme dan dejinge dêr 't jo no mei oanmeld binne. As jo fierder printsje wolle, dan moatte jo it wachtwurd fan de root ynjaan.