For centralized printer management point your web browser to https://www.intern:631. This is the normal CUPS management interface where you can add/delete/modify your printers and can clean up the printing queue. By default only the first user is allowed but this can be changed by adding users to the GOsa² printer-admins
group.
The package p910nd is installed by default on a system with the Workstation profile.
Edit /etc/default/p910nd
like this (USB printer):
P910ND_OPTS="-f /dev/usb/lp0"
P910ND_START=1
Configure the printer using the web interface https://www.intern:631
; choose network printer type AppSocket/HP JetDirect
(for all printers regardless of brand or model) and set socket://<workstation ip>:9100
as connection URI.