Thank you for your report, Christoph.
On Fri 14 Jul 2017 at 15:00:26 +0200, Christoph Pleger wrote: > I do not know if it is a problem with the lpr program from cups-bsd or with > the cups daemon itself, but with "DefaultPolicy authenticated" in > cupsd.conf, lpr does not print, but the job remains in the print queue for a > while and then is removed. You could try using lp to print but I cannot see that producing any different an outcome. We'll need an error_log; the Printing section of the wiki will guide you in getting one. Compress it with gzip and send it to #868316. Also attach your cupsd.conf and give the printer make and model. Regards, Brian.
