uv problem

[Rconce01]

Hi does anyone know of an ink that might be available for the hp 4000 printer that is uv resistant. All the renderings we have printed seem to fade after 1yr or so of exposure to fluorescent lighting or if they are near a window. I know the hp 5000 plotter supports uv inks but I have not found anything for the 4000 all thay have is UV outdoor paper, but I fell that might not be enough if you don’t use uv ink on it.

thanks