Hi,
The only difference I see in my cupsd.conf and yours seems to be that I don't have "ServerName" or the "BrowseAddress" variables defined. However, the critical information we need is in /etc/cups/printers.conf. I'm attaching mine below.
manoj
__> sudo cat /etc/cups/printers.conf # Printer configuration file for CUPS v1.1.23 # Written by cupsd on Thu 06 Apr 2006 05:51:37 PM CDT <DefaultPrinter Delphyne> Info Dell 3100cn Location Home Office DeviceURI lpd://delphyne.internal.golden-gryphon.com/ State Idle Accepting Yes JobSheets none none QuotaPeriod 0 PageLimit 0 KLimit 0 </Printer> __> host delphyne.internal.golden-gryphon.com delphyne.internal.golden-gryphon.com has address 192.168.1.50