Zebra QN4-AUNA0M00-00 Mobile Printer, QLn 420 Series, USB, 4" Print Width

The Zebra QLN 420 Direct Thermal Mobile Printer with Apple iOS certification prints monochrome labels up to 4.1" wide at 203 dpi (8 dots/mm) for the retail, healthcare, and transportation industries. Wireless communication interface connection is 802.11 a/b/n dual radio with Bluetooth 3.0. It is Link-OS environment-enabled for integration, management, and maintenance from a PC, smartphone, or tablet with Apple iOS, Android, Windows Mobile, and BlackBerry systems. It has a 400 MHz 32-bit ARM processor with 128 MB RAM memory and 256 MB flash memory that supports downloadable programs, receipt formats, fonts, and graphics with 64 MB available for user storage. A plastic overmolding and tempered-glass display coupled with a seamless, one-piece design tolerates multiple drops from 6'/1.829 m to concrete and offers an IP43 dust- and water-resistance rating. A large, easy-to-read LCD control panel (240 x 128 pixels) can be customized using Wireless Markup Language (WML) text and icons and has five-way navigation buttons, two software-defined keys, printer alerts on the display, label odometer, a real-time clock, and help menus. The printer offers black-mark and gap media sensing using fixed center position sensors, a peel and present mode, a label present sensor for issuing labels one at a time, a tear bar for media dispensing, and center-loading media locking for variable roll widths. It prints both vertically and horizontally.