Metallic ink cartridge

I don't think such a thing exists. I did read some years ago of them trialing metallic inks, but found pigments to be too heavy and they easily clogged the print head. I can find nothing like that on epsons site. Your best chance may be to enquire at specialist art stores or contact epson directly.

+1^

I haven't seen nor heard of metallic ink cartridges. But, in ink cartridges you may be able to insert metallic ink into an empty epson ink cartridge.