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Zebra QLn420 Mobile Label Printer Zebra Technologies

Standard Features

  • A label mobile printer using direct thermal printing technology   
  • Primary  vertical applications center around manufacturing, transportation & logistics and retail
  • New accessories available tailored to meet the needs of the target applications

More Standard Features
  • 203 dpi resolution (8 dots/mm)
  • Print Speed: Up to 4 ips (100mm/s)
  • CPCL and ZPL programming languages
  • Resident fixed and scalable fonts
  • 400 MHz 32-bit ARM processor with 128 MB RAM
  • 256 MB Flash supports downloadable programs, receipt formats, fonts, and graphics
  • Serial and USB ports
  • 5.0 AH removable Li-Ion smart battery
  • Easy to use peel and present mode
  • Label present sensor for issuing labels one at a time
  • Tear bar for easy receipt dispensing
  • Supports vertical and horizontal printing
  • Printer can be used in any orientation
  • Center-loading media locking for variable roll widths
  • "Clamshell" design for easy loading
  • Management: Mirror, SNMP, Web server (with customizable HTML pages), Wavelink Avalanche®
  • Large, easy to read LCD control panel 240 x 128 pixels
  • Printer alerts on the display, help menus
  • 5-way navigation buttons, two software defined keys
  • 6' (1.82 m) drop to concrete (multiple times)
  • IP42 rated for dust and water resistance (IP54 with Durability Enhancing Case)
  • Label odometer
  • Real Time Clock
  • BluetoothTM 3.0
  • Print TouchTM via NFC (near field communication)

Validated Handheld Terminals, Smartphones, and Software
  • Wireless connectivity was tested with the leading handheld terminals to improve the integration of the complete solution with the QLn420 printers.  If a product is not documented as being interoperable there is no implication it does not work with the printer.
  • Honeywell:  Dolphin 6000, Dolphin 6100, Dolphin 7800, Dolphin 99EX, Tecton
  • Motorola:  MC909x, MC75A, MC55, ET1
  • Intermec:  CK71
  • Android: Google Nexus 7, Motorola ET1, Samsung Galaxy Tablet
  • A list of Independent Software Vendor (ISV) software applications that have been validated to work with the QLn420 can be found at  Validated applications have gone through the Zebra Validation Program to verify the interoperability of the software applications with Zebra products  

Printer Specifications

Resolution: 203 dpi (8 dots/mm)


  • 128MB RAM
  • 256MB Flash

Print width: 4.1" (104 mm)
Print length: Min 0.5" / 12.7 mm, Max 32' / 813 mm
Print speed: up to 4 ips (100 mm/s)

  • Bluetooth 3.0 connectivity
  • 802.11 (a/b/g/n) connectivity

Programming Lanuages

Core programming languages: CPCL and ZPL

Media Characteristics
  • Media width: 2.0" (51 mm) / 4.4" (112 mm)
  • Media thickness: 3.2 mil to 7.5 mil
  • Max print width: 4.1" (104 mm)
  • Media roll ID: 0.75" (19 mm) or 1.375" (34.9 mm
  • Media roll OD: 2.6" (66 mm)
  • Media types: Die-cut, roll-fed, receipt, linerless, black bar, black mark

Related Products


  • Spare batteries
  • AC adapter (ENERGY STAR R qualified)
  • SC2 smart battery single charger (ENERGY STAR qualified)
  • Quad battery charger (same as QL Plus)
  • Forklift mount accessories:
    • Heavy-dutymount with fanfold tray
    • Plate for RAM-arm mounting
    • Cradle for easy attach/detach
    • DC coverters for powering and charging from forklift batteries
    • Forklift battery eliminator (coming soon)
  • Stand for tabletop use
  • Shoulder strap
  • Hand strap
  • Soft case (IP54 rating when using the case)
  • Hard case for heavy abrasion environments
  • Serial and USB cables with strain relief
  • QLn4-EC charging and ethernet cradle
  • QLn4-VC vehicle cradle for use with a QLn420 on a forklift for easy removal. Compatible with RAM arm (not included)
  • QLn420 Handimount includes plate and RAM arm for fixed mounting of QLn

Communication and Interface Capabilities
  • ZebraNet 802.11 a/b/g/n radio with support for:
    • WEP, TKIP, and AES encryption (802.1x)
    • 802.1x
    • WPA and WPA2
    • 802.11i and 802.11d
  • 802.11n (optional):
    • Wi-Fi (802.11n) Certified
    • Cisco CCX v4 ASD Certified
  • Bluetooth R 3.0 radio
  • Dual radio 802.11 a/b/g/n & Bluetooth 3.0 radio (coming soon)
  • 10/100 Ethernet support (via docking station)
  • Cabled Communications Specifications:
    • USB 2.0 full speed interface (12 Mbps)
    • Mini-B connector with optional strain relief
    • Serial interface: 14-pin RS-232C port for communication to terminal or other host up to 115.2 kbps

Operating Characteristics
  • Operating temperature: -4° F (-20° C) to 122° F (50° C)
  • Operating humidity: 10% to 90% non-condensing
  • Storage humidity: 10% to 90% non-condensing
  • Storage temperatures: -13° F (-25° C) to 158° F (65° C)

Agency approvals

  • FCC 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
  • CCX certified

Physical Characteristics
  • Width: 6.5" (165 mm)
  • Height: 7.35" (187 mm) with beltclip
  • Depth: 3.25" (82.5 mm)
  • Weight: 2.45 lbs (1.1 kg) with battery

Bar Codes/Symbologies
  • Linear Code 39
  • Code 93
  • UCC/EAN-128
  • Code 128
  • Codabar
  • Interleaved 2-of-5
  • UPC-A
  • UPC-E
  • EAN-8
  • EAN-13
  • 2-dimensional PDF417
  • MicroPDF417
  • MaxiCode
  • QR Code
  • RSS / GS1 DataBar family (12 barcodes)
  • Aztec
  • Data Matrix
  • TLC 39

Fonts and Graphics
  • Standard fonts: 25 bitmapped, 1 smooth-scalable (CG TriumvirateTM Bold Condensed)
  • Optional fonts: Downloadable bitmapped and scalable fonts
  • Optional international character sets, Chinese 16x16 (traditional), 16x16 (simplified), 24x24 (simplified); Japanese 16x16, 24x24; Korean Mincho, Meong; Russian
  • Five resident scalable, rotatable fonts available from 12-48 pt
  • Supports user-defined fonts and graphics, including custom logos

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About Zebra Technologies logo
With over 30 years of experience and nearly three million printers in use, Zebra is the trusted brand for more than 90% of Zebra Technologies Inc. Zebra printers provide you with special printing solutions for high requirements. The widest and best range of printers for labels, bar codes, and RFID applications in the market from this well-known manufacturer is right at your hands. Their card printer systems as well are successful worldwide. As official distributor, BARCODE TECHNOLOGIES LTD offers pooled competence in sales and consulting for all special barcode printer systems from Zebra. For over twenty years, the brand name Zebra has been inseparable from barcode and label printers. Many of the largest companies in all industry, transport and logistics rely on the robustness and efficiency of these printers. This makes Zebra one of the leading suppliers of businesses that have a need for speed, reliability, and precision in label and bar code printing. Not only unrivalled robustness makes Zebra the prime choice over other brands, Zebra’s real strength is their large market share: all important software systems come with built-in support for Zebra printers, which makes installation just a matter of a few clicks with your mouse. The simple to use and easy to install devices offer you an exceptional opportunity to open up new markets and further expand existing customer potential. With the versatile printer line from Zebra, you have the right solution for every budget. We keep almost the entire range of printers ready for delivery, so that you can always satisfy your customers‘ needs at any time required. For your convenience, we also deliver suitable accessories, such as original ink ribbons, various label formats, and printer accessories, as well as blank, magnetic or RFID cards - usually delivered overnight. At the same time, you can rest assured that our prices are always among the lowest in the market to make your business competitive at any time. Along with the hardware and a wide selection of original consumables, BARCODE TECHNOLOGIES LTD also offers you professional consulting, training and high competence for support or repair of devices. Fortune 500 companies.

About Barcode Mobile Printers
We offer a range of direct thermal and thermal transfer mobile portable label and receipt printers from Zebra, Toshiba TEC, Paxar Monarch