Epson ColorWorks C7500 Technical Reference Guide - Page 202

Die-cut label (Gap) Backing paper width Edge R Gap between Label length labels Edge cutoff Label width Edge cutoff Backing paper Label area Media type Media source Backing paper width Label width Label length Gap between labels Left and right outer edges Label edge R Paper thickness Paper core External diameter Winding direction Plain label / Matte label / Synthetic label / Glossy label Roll paper 50 to 112 mm {1.97 to 4.41"} 46 to 108 mm {1.81 to 4.25"} 25.4 to 600 mm {1 to 23.62"} 3 to 6 mm {0.12 to 0.24"} 2  0.5 mm {0.08  0.020"} 1.5 mm {0.06"} or less Plain label/ Matte label/ Synthetic label: 0.129 to 0.236 mm {0.005 to 0.009"} (reference values) Glossy label: 0.167 to 0.182 mm {0.007 to 0.007"} (reference values) Internal diameter: 76.2  0.5 mm {3  0.020"} External diameter: 82.2 mm {3.24"} or more Maximum 203.2 mm {8"} Printing face must be facing outside.  Do not use the paper with a hole or cutout.  If the backing is synthetic paper or film, it will be difficult to cut by hand even if there is a perforation, so do not use the perforation. 202