Printjobs does not get deleted after printing ?

[Michael Glauche]

Hi,
 
  got another strange problem with cvs samba :
when I try to print (using lprng) the printjobs stay in the queue.
I was wondering why our disks where full, and I found that there 
were 5 gb diskspace occupied.
 
        printing = lprng
        printcap name = /etc/printcap
        print command = /usr/local/bin/lpr  -P%p %s -r
        lpq command   = /usr/local/bin/lpq  -P%p
        lprm command  = /usr/local/bin/lprm -P%p %j
 
regards,
   Michael