with a built-in network connection, the td-4420dn is designed for sharing. labels are printed in high quality for crisp, clear images. the td-4420dn is ideal for printing 1d barcodes for scanning. direct thermal printing technology produces accurate, sharp definition images. the use of a heat-sensitive coating does not require ink. a good choice for printing high-volume temporary barcode labels with a maximum media width of up to 118 mm/4.65 inches wide. network connection high resolution up to 203 dpi high print speed up to 8 frames per second print width up to 4.09 inch/104 mm easy setup with automatic media configuration ready to integrate with ios and android apps buttons: power, feed flash ram: 64 mb sheath color: white and gray led: status ram: 256 mb technology: direct thermal printing: bitmap fonts: helsinki, gothic bold, san diego, brougham, brussels, gothic copy: 1-9999 (esc/p p-touch template) label detection sensor: yes maximum label width: 118 mm maximum print length: 3000 mm maximum print width: 104 mm mirror printing: yes resolution (dpi): 203 sequential numbering: 1 - 9999/a - z/a - z standard print speed: 203 mm per second supported commands: p-touch template, raster, esc/p, zpl ii emulation, cpcl emulation connectivity: serial port: serial rs-232c (male db9) usb interface: usb ver. 2.0 (full speed), type b wired network interface: 10/100base-tx in the package: power adapter cable: yes other: endless white roll with black prints, 102 mm long (initial roll 2 m) usb cable: yes user guide: yes warranty certificate: yes dimensions: 108mm (w) x 155mm (d) x 224mm (h) weight: 2.08 kg