It needs to be fed through the sheet feeder only, not the rear or the front, short edge first, and I think it has to be one of the following paper types; Epson Premium Photo Paper Glossy, Epson Premium Photo Paper Semi-Gloss. According to the specs, you should be able to do 3.5" x 5". You might try setting a custom size for your paper type if it's not one of the two listed.