Epson C3500 Technical Reference Guide - Page 231

Chapter 6 Appendix Wristband/roll paper (WB-M series) When "Borderless Printing" is disabled Top, bottom, left. right margins: 1.5 mm (Typical value) Paper width 36 mm Center of paper width 1.5 mm 10.8 mm 5.5 mm Paper feeding direction Autocutting position 265.0 mm 142.4 mm 156.5 mm 292.1 mm 105.0 mm 11.0 mm Recommended print area for text and barcodes (*dimension) 14.6 mm 138.9 mm 15.0 mm 5 30.6 mm 1.5 mm 1.5 mm 1.5 mm Autocutting position Print area Paper 12.5 mm  Do not print inside or within 2 mm {0.08"} around the snap button mounting hole to prevent damage to the mechanical functions.  If using the WB-S/M/L series, use the attachment (OT-WA34). 231