Black Epson C13S051204 Photoconductor Unit The genuine black Epson C13S051204 photoconductor unit works with your Epson printer to print high resolution images. The photoconductor or image drum is an essential component in the laser printing process and determines the quality of any image you print. This expertly designed Epson C13S051204 photoconductor is made from official Epson parts that interact perfectly with your other supplies to ensure reliable and consistent output of text and graphics.