[GTALUG] Printing Problem - Can't find printer

I am using Ubuntu 14.04 Printer is Epson WF-2630 Wi-fi connection. Hard coded IP address When I try to print, I get a Gnome pop-up saying printer is off-line. Using the web interface to CUPS the reported error is printer not found. I can always ping the printer. I can always print from a windows computer on the same network. I can, from the CUPS web interface "modify" the printer settings. I click through without changing anything. When I am finished, the stalled print job is printed. Any ideas how I can print without "modifying" the printer settings? -- Stephen