... Roll Core Inner Diameter13mm(min.) Paper Thickness0.06 to 0.07mmPaper Supply MethodDrop-in paper loadReliability MCBF60 ... Paper End Sensor Drawer Port1 PortInterfaceRS-232, Parallel, USB, EthernetPower Supply (Adapter) AC100 ~240V(± 10%) DC 24V, 2AAuto ... and Monochrome thermal printingMultiple I/F options (Serial, Parallel, USB/Serial, Ethernet, & Wireless)Unsurpassed reliability measurements – 60 ...