I just bought an HP Photosmart C7280, and while it's a great printer, I can't get it to print to the Photo Paper Tray from iPhoto. If I want to print a photo I have to copy the photo(s) from iPhoto to HP's (gawdawful) Photosmart Studio, and from there when I select PRINT I'm able to select the paper tray, quality, etc. on the C7280.

I hope I'm just missing something, but I don't see any way to configure the printing parameters for this printer from within iPhoto...although HP claims it has specific compatibility with iPhoto. Thanks!