GPRINTER GP1324D USB Port Thermal Automatic Calibration Barcode Printer, Max Supported Thermal Paper Size: 104 x 2286mm 1. High speed, clear printing. 2. Printing speed: up to 8 inchs; minimum 2 inchs 3. Print interface: USB 4. Print head resolution: 203 dotsinch (8 dotsmm) 5. Print dot size: 0.125 x 0.125mm (1mm=8 dots) 6. Maximum print width: 104mm 7. Maximum print length: 2286mm 8. Operating environment: 5~45 degrees Celsius 9. Storage environment: -10~50 degrees Celsius 10. Power: Input: AC 110V 240V; Output: DC 24V 2A, 48W 11. Built-in volume maximum outer diameter: 130mm OD 12. Paper winding method: printing surface roll type 13. Paper width: maximum 120mm; minimum 20mm 14. Paper thickness: maximum 0.254mm; minimum 0.06mm 15. Paper reel heart distance: 25.4mm-38mm 16. Paper roll spacing height: minimum 2mm