problems printing over samba

[Adam Funk]

I have an Ubuntu machine used as an occasional desktop & lightweight
home server.  It runs cups & samba for printing from a couple of other
devices.

My wife's old Windows 2000 desktop often had problems reaching the
printer, but her new Windows 8 (I know, sorry!) laptop found it & used
it without any problems from day 1.

Since I upgraded (or at least mostly upgraded --- see other post)
the Ubuntu server to 13.04 yesterday, she's been having problems
printing to the same hostname & printer share.  If I log into the
server & run "sudo /etc/init.d/cups restart" and "sudo
/etc/init.d/smbd restart", it works again.

My Ubuntu :-) laptop runs CUPS & uses the ipp URL for the printer, &
has worked consistently through various versions of Ubuntu on the
laptop & the server since I figured out the right ipp URL.

I'd appreciate any debugging suggestions for this.

Thanks,
Adam