[Samba] print queue document count never resets

[Joe]

Running 3.5.8 on Ubuntu 11.04.

I have lpr set up and here is my print command...
lpr -r -P'%p' %s

The document count as shown in the windows "printers and faxes" never
resets back to zero after the documents are printed.  Even when the
queue is empty it will show 1000's of jobs.  I have to right click on
the printer and "cancel all documents" then press F5 to refresh the
view.  F5 will not do it alone.  Is there some way to change this
behavior?