Carol,
I use an Epson 1270 wide carriage printer that lets me output image sizes up to 13x44 inches on roll paper or 13x19 on sheet paper. The quality of the Epson printers, is in general, excellent and I suspect that you'll be happy with the choice of an Epson. For supplies, you can get them from Epson on line with free shipping from their distribution center in Indianapolis if that helps any.

Gary