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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, care, 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, , or 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. SpecificationsDimensions*7.35 x 6.5 x 3.25 inches/187 x 165 x 82.5 mm (H x W x D)Maximum print width4.1"/104 mmMaximum print length32"/813 mmPrint speedUp to 4"/sec, 102 mm/secMaximum label and liner width4.4"/112 mmMinimum label and liner width2.0"/51 mmMaximum label and liner length32"/813 mmMaximum roll diameter2.6"/66 mmCore diameter0.75"/19 mm or 1.375"/34.9 mmMedia thickness3.2 to 7.5 milElectrical DC charging input12 VDC + or - 10% at 2A maximumAgency approvalsFCC Part 15, Subpart B, EN55022 Class-B, EN60950, EN55024, VCCI class B, EN55024, EN61000-4-2, EN61000-4-3, EN61000-4-4, EN61000-4-5, CE, UL, TUV, CSA *H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Thermal printers can be used to print receipts, labels, tags, and other similarly sized media at point of sale (POS) locations. Direct thermal printers and thermal transfer printers use heat instead of ink to print on coated thermal media. A parallel, serial, or USB port allows a receipt printer to be connected to a computer. An Ethernet port or wireless capabilities may enable it to be connected to a computer network. Thermal printers can be used at retail checkout counters and other points of sale. Zebra Technologies manufactures barcode, receipt, kiosk, and radio-frequency identification (RFID) printers and accessories. The company, founded in 1969, is headquartered in Lincolnshire, IL. What's in the Box? ------------------ * (1) thermal label printer * (1) lithium-ion battery * (1) belt clip