Usage Tips: Portable Desktop Thermal Receipt Printer: 58mm paper width, 48mm print width, 60mm/s print speed, 203dpi resolution. Clear printing quality and reliable performance. Large Application Range: Compatible with ESC/POS instruction set. Suitable for use in supermarkets, restaurants, retail stores, tax offices, banks, post offices, and similar environments. Supports USB and Bluetooth connectivity. Compatible with various retail and inventory management applications. Eco-Friendly Printing: Uses thermal print head technology—no ink cartridges or ribbons required. Low operating cost. Compatible with standard thermal paper. Strong Compatibility: Supports Linux, Windows 2000, Windows 2003, Windows XP, Windows 7, Windows 8, Windows 8.1, and Windows 10. Driver available for download. Powerful Print Capability: Supports multiple languages, logo and graphic printing, and common barcode formats including UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF, CODABAR, CODE93, and CODE128. Specifications: Model: JK-5801H Color: Blue Dimensions: 180 x 130 x 110 mm Weight: 492 g Printing Method: Thermal Line Print Width: 48 mm Resolution: 203 dpi (384 dots/line) Print Speed: 60 mm/second Paper Width: 57 ± 0.5 mm Maximum Paper Roll Diameter: 60 mm Paper Feed Method: Easy feed (clamshell design) Command Set: ESC/POS Power Adapter: Input AC 100–240 V, 50–60 Hz; Output DC 12 V / 3 A Cash Drawer Output: DC 12 V / 1 A Interface: USB + Bluetooth Line Spacing: 3.75 mm (adjustable via command) Characters per Line: Font A: 32 characters; Font B: 42 characters; Simplified/Traditional Chinese: 16 lines Character Sets: Standard GB18030 simplified and traditional Chinese fonts Character Sizes: - ANK Font A: 1.5 x 3.0 mm (12 × 24 dots) - ANK Font B: 1.1 x 2.1 mm (9 × 17 dots) - Simplified/Traditional Chinese: 3.0 x 3.0 mm (24 × 24 dots) Barcode Support: UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF, CODABAR, CODE93, CODE128 Graphics Printing: Supports bitmap download and print Print Head Life: 50 km (at print density ≤12.5) Supported Operating Systems: Android, iOS, Linux, Windows 2000, Windows 2003, Windows XP, Windows 7, Windows 8, Windows 8.1, Windows 10 Package Includes: 1 x Thermal Receipt Printer 1 x Paper Roll 1 x Power Cable 1 x USB 2.0 Cable 1 x User Manual