top of page

Zebra® QLn420 Mobile Printer

Zebra® QLn420 Mobile Printer

Download Detailed Brochure

Designed for On-the-Go, Wireless Printing

The Zebra® QLn420 mobile printer performs thermal printing on the go, with easy integration into existing networks and connectivity to popular devices such as Apple iOS, Android, Windows Mobile and BlackBerry. Drop-resistant molding and a tempered-glass display make this printer extremely durable. The 256 MB flash memory enables quick graphic formatting and downloading for customized printing. Easy-tear mode and a serrated strip permits seamless receipt and label dispensing anywhere.


  • Apple iOS, Android, Windows Mobile and BlackBerry connectivity

  • Direct thermal printing of barcodes, text and graphics

  • CPCL, EPL™ and ZPL® programming languages

  • 256 MB Flash memory supports downloadable programs, receipt formats, fonts and graphics (64 MB available for user storage)

  • PowerPrecision+ 4900 mAh Li-Ion rechargeable battery

  • Built-in battery charger

  • RS-232 serial (DB-9F) and USB ports (both support strain relief)

  • Belt clip for unobtrusive and convenient printing

  • Black mark and gap media sensing using fixed center-position sensors

  • Easy-to-use peel and present mode

  • Label present sensor for issuing labels one at a time

  • Tear bar for easy dispensing

  • Center-loading media locking for variable roll widths

  • “Clamshell” design for easy media loading

  • Management: Mirror, SNMP, Web server, Profile Manager, AirWatch and Wavelink Avalanche®

  • Large, easy-to-read LCD control panel (240 x 128 pixels)

  • LCD can be customized using WML (text and icons)

  • Printer alerts on the display, help menus

  • Tolerance of multiple drops from 6' / 1.8 m to concrete

  • IP43 dust- and water-resistance rating (IP54 with soft case)

  • 400 MHz 32-bit ARM processor

  • XML support

  • Supports vertical and horizontal printing

  • Printers can be used in any orientation

  • QR barcode links to web-based help pages

  • Zebra Print Touch simplifies Bluetooth pairing and launches web-based help pages with NFC-enabled devices

  • Label odometer

  • NTP (Network Time Protocol) support via WiFi or Ethernet


Paper Width:
4.40 in

Paper Thickness:
3.2 mil to 7.5 mil

Paper Diameter (OD):
2.6 in

Paper Roll Shaft:
0.75 in

203 dpi

128 MB RAM / 256 MB Flash

Print Width:
4.10 in

Bar Code Symbologies:
Codabar (NW-7), Code 39, Code 93, Code 128, EAN-8, EAN-13, UCC/EAN 128, UPC-A, UPC-E, PDF417, Micro PDF417, QR Code, TLC39

Maximum Print Length:
32 in

Maximum Print Speed:
4 ips

Media Sensors:
Black mark, Gap

RS-232 (DB-9F), USB, WiFi, Bluetooth®

Operating Characteristics:
Operating temperature: -4° F to 122° F
(-20° C to 50° C)


Physical Characteristics:
Width: 6.5 in
Height: 7.35 in
Depth: 3.25 in
Weight: 2.45 lb

One-year warranty

bottom of page