Zebra QLn420™
Mobile Printer
®
Zebra’s popular QL™ family of direct
thermal mobile label printers has
built a highly satisfied following
based upon its proven dropresistant durability; user-friendly,
productivity-boosting features; and
easy integration. As Zebra’s third
generation of QL printers, the QLn™
printers extend these QL-platform
benefits to the “nth” power.
integrate into existing platforms
thanks to Zebra’s Link-OS®
environment. Other features
such as Zebra Global Printing and
improved network performance
— including 802.11n wireless
LAN capability for more robust
and reliable connectivity and
throughput — also make integration
easier.
The QLn420’s over-molding and
tempered-glass display — coupled
with its seamless, one-piece
design — make it more durable
than ever before. The QLn printer
can boost your operation’s
productivity through a larger,
sharper, easier-to-navigate display;
faster, higher-quality printing; a
variety of proactive alerts that
help keep working printers in
employees’ hands; and many
convenient charging accessories.
And, your IT department will find
the QLn printer more intuitive to
With Zebra’s Link-OS environment
— an innovative operating system
combining a powerful Multiplatform
Software Development Kit (SDK)
and software applications — the
QLn family of printers is easy to
integrate, manage and maintain
from any location around the globe.
Enabled with Print Touch™, these
Link-OS enabled printers offer web
page launching features using Near
Field Communication (NFC), making
it easy to access Zebra’s extensive
knowledge base of how-to videos
and product support.
Zebra QLn420 Datasheet
Ideal for These Applications
• Manufacturing
– Labels for shipping and
receiving
–Pick-pack-apply
(inventory control, work-inprocess, parts tracking)
– Asset management;
– Shelf/ bin/ box/ pallet
(pick tickets)
• Transportation & Logistics
– Labels for shipping, receiving,
cross-docking
–Pick-pack-apply
– Shipping dock (asset/ fleet
management, pick tickets,
parcel/ logistics receipts)
• Retail
– In-store shelf labels
–Markdowns
– Distribution centers
1
Easier to Integrate, Manage
and Maintain
New features make it easier to integrate the QLn printer into your
existing network and manage it from anywhere in the world —
saving you IT time and costs.
Easier to Integrate
• M
ove your business forward without the cost
or stress of upgrades. Backwards compatibility
with QL and QL Plus™ models lets you upgrade
to the QLn printer without changing media or
label formats. The inclusion of the legacy CPCL
programming language also allows mixed networks
of QL/QL Plus and QLn products.
• Be assured of full compatibility with many other
Zebra printers thanks to Zebra’s ZPL® programming
language. And with ZBI 2.x™, directly connect your
printers with legacy host systems and peripheral
devices, such as scanners and scales.
• Maintain robust and reliable connectivity, even for
your largest data transfers, with Wi-Fi® -certified
connectivity. Zebra’s 802.11n solution has dualband support (5GHz and 2.4GHZ) and is fully
compatible with 802.11a and 802.11b/g standards,
so you can easily move business operations to the
less-crowded 5GHz band.
• The Link-OS tools include:
– Software Development Kit: create printing
applications for Windows®, Apple®, Android™,
Windows® CE, Windows® Mobile and
BlackBerry® platforms.
– Cloud Connect: connect to the Cloud directly
and securely, forwarding data from any port.
–Virtual Devices: support multiple programming
languages on one printer and integrate Zebra
Link-OS enabled printers into existing legacy
systems.
– Print Touch: simplify Bluetooth® pairing and
launch Web-based help pages with NearField
Communication-enabled devices.
• Quickly configure single printers with the Zebra
Setup Utility and enable global printer management
with ZebraNet™ Bridge Enterprises.
• Efficiently print and optimize your labels with
ZebraDesigner™ Pro for label design and
ZebraDesigner drivers for Windows. Print multiple
languages on a single label using Zebra’s Unicode™
UTF-16-compliant Global Printing Solution.
2
• Work with the confidence that comes with
industry-leading solutions. The QLn420 features
improved communication with leading handheld
terminals that have been tested and verified for
maximum interoperability when using the printer
with validated terminals. Zebra Independent
Software Vendor (ISV) Partners create industryleading software solutions to solve business
problems, and Zebra works closely with these ISVs
to integrate printing and other capabilities of Zebra
products. Zebra-validated applications can be
found at zebra.com/validation.
Easier to Manage
• M
anage all aspects of your networked Link-OS
enabled printers from just one screen with Profile
Manager. There’s no need to switch between
applications to get the job done, and you can
manage the simple admin console remotely on
your PC, tablet or smartphone.
• Keep printers in service longer by managing
specific, local printer and battery issues remotely
over a wired IP network, including Serial and
Bluetooth, via a Zebra Ethernet cradle. And
with AirWatch™ Connector, you can quickly
connect your printer with the AirWatch devicemanagement system via WLAN and Ethernet.
• Automatically update printer firmware and
configuration from a file server over 802.11 or
Ethernet interfaces with the mirror function.
• Manage QLn printers using most of the popular
third-party management software solutions.
The printers also fully support Simple Network
Management Protocol (SNMP).
Easier to Maintain
• Reduce
wasted time and lost productivity with
the smart battery, which indicates the power and
health of a printer’s battery.
• Effortlessly manage your printers and firmware
by connecting your devices to your wired
Ethernet network and/or cradle.
Zebra QLn420 Datasheet
Easier and More Efficient
to Use
Multiple enhancements deliver significant operational advantages
over the previous-generation QL and QL Plus series mobile printers.
Easier to Use
Longer Printer Uptime
The QLn420 was designed to optimize business
processes through easy operation and mobility—
reducing training requirements and increasing
worker productivity.
Improve operational productivity and reduce costs
associated with downtime through fewer printing
interruptions.
• M
eet the increasing demand for mobile printing
across different operating systems. QLn printers
are “Made for iPod®/ iPhone®/ iPad®” certified
and also support Android and Windows devices
via Multiplatform SDK apps.
• E
asily operate the printer using simple-tonavigate controls and a user-friendly interface,
which includes a help menu and alert
messages.
• Q
uickly access Zebra’s extensive knowledge
base of how-to videos and product support
with Print Touch-enabled Web page launching
features.
Monitor and manage the printer remotely using the
Windows PC-based AirWatch Connector.
Prevent associates from being stuck printerless
in the middle of their work. The printer enables
proactive maintenance by displaying printer alert
messages, smart battery charge and health
status.
Avoid the downtime and costs of unnecessarily
sending the printer away for servicing. Many
issues can be remotely diagnosed and resolved
(including firmware updates, configuration
changes, and adding new fonts or graphics)
over an Ethernet connection.
• C
onveniently carry and store the printer thanks
to a smaller design.
• Achieve
faster, higher-quality printing with lower
power use through Power Smart Print
Technology™.
• Experience higher performance:
– Faster processing and throughput.
– Increased memory that handles printer’s
advanced functions and future firmware
improvements, and stores more complex fonts,
graphics and images.
• Increase
user and operational efficiencies with
convenient charging accessories.
3
Zebra QLn420 Datasheet
Mobile A to Z
From Accessories, to Supplies, to ZebraCare™ Plans
Lithium-Ion Charging Accessories
The QLn420 charging and Ethernet cradle charges
the battery — a neat and orderly solution to keep
batteries in the printer.
Connect QLn printers to your wired Ethernet
network via the QLn Ethernet cradle to enable
easy remote management by your IT or operations
staff — helping to ensure each printer is operating
optimally and ready for use. The Ethernet cradle can
communicate over 10 Mbps or 100 Mbps networks
using auto-sense.
The printer remains fully functional so you can print
while it is in the cradle. The cradle’s LED lights
indicate DC power and Ethernet-link status.
Remote printer management over your Ethernet
allows:
• B
attery management for monitoring battery health.
Knowing each battery’s lifespan stage simplifies
central management of your spare-battery pool.
• Firmware
management for updating printer
firmware, eliminating the need for IT staff to travel
to the local user site, or for the printer to be sent
back to a central location for updating.
• Print
management for updating templates, fonts
and graphics in order to print new label formats.
• Device
management for updating startup
(e.g., config.sys), WML (front panel) or HTML
(browser) files to enhance or change configuration
and status collection.
• Network
management for updating encryption
keys or certificate files to maintain the highest
level of security.
• Problem
resolution and troubleshooting local
printer issues that may otherwise require the
printer to be sent in for repair.
• A
bility to manage Bluetooth printers, which
traditionally have been off-network.
QLn420 Charging and Ethernet Cradle
What Comes with the Unit?
Unit with AC Adapter:
Cradle, AC Adapter, Power Cord, and document
CD including cradle user manual and installation
guide.
Zebra QLn420 Datasheet
Cradle Unit:
Cradle and document CD including Cradle user manual
and installation guide (AC Adapter can be purchased
separately).
4
AC Adapter
Forklift Mounts
Connect the AC adapter to
your QLn printer and wall outlet
to charge the printer’s smart
battery while in the printer.
The printer can print labels
and perform other functions
during charging. Shown with printer
for reference purposes; printer is not included.
RAM Forklift Mount
Plate and RAM mount arm permits
compact and fixed mounting to a forklift.
Smart Charger
Quad Battery Charger
The smart charger will fully charge a single
standalone QLn smart battery in
less than four hours.
In addition to indicating
battery-charge status,
it leverages the battery’s
smart design to indicate battery
health, allowing you to more
accurately manage your
spare-battery pool. Specifically,
LEDs show whether the battery is “good,” has a
“diminished capacity,” is “past useful life” or is
“unusable” and should be replaced. The smart
charger comes with a charging base and power
cord. Shown with printer for reference purposes;
printer is not included.
The quad battery charger
is designed to simultaneously
charge up to four QLn smart
batteries (removed from the
printer) in about three hours.
Lights on the charger
indicate when individual
batteries are 80 percent charged
and when fully charged. Note the quad
battery charger does not indicate battery health
(as provided with the smart charger). Comes with the
charging unit, a power supply and power cord.
Removable Forklift Cradle
Shoulder Strap
Allows the printer to be carried over
the shoulder.
By allowing users to place a
cradle in their forklift or truck,
the QLn420 forklift cradle and
mount provide convenient
storage and charging for the
QLn420 printer while on the
move. Forklift operators can
now print product identification, bin and shipping
labels at the point of application to provide quicker
turnaround. Printed barcode labels can be applied
as deliveries are received to record product arrival
and aid tracking applications.
5
Heavy-Duty Forklift Mount
The heavy duty forklift mount has been
tested to high levels of shock and vibration.
Also includes a bin to hold a large amount of fanfold
media to reduce the frequency of reloading media.
Carrying Straps/Cases
Hand Strap
Allows the printer to be carried by hand.
Soft Case
Add an extra layer of protection for
harsh environments with a soft case.
While in the case, the printer is IP54rated for resistance to windblown water
and dust. Case provides openings for
changing the media and batteries and all
connectors are accessible. Includes
shoulder strap.
Hard Case
Increases the printer’s drop specification and is made
to protect the printer in extra-harsh environments
such as constant abrasion.
Genuine Zebra™ Supplies
ZebraCare Services
Ensure consistent print quality,
reduce downtime and increase
productivity in your printing
process with Genuine Zebra
supplies. We manufacture each supplies
product with the exact same materials every time
so you always get crisp, readable and scannable
output without needing to adjust the printer
darkness setting between rolls.
Increase printer uptime and reduce lost productivity
and unbudgeted repair costs by selecting a
ZebraCare Depot service agreement. A costeffective means of planning and budgeting for your
annual maintenance expenditures, your agreement
ensures that trained Zebra technicians will bring
your printer back to factory specifications. Zebra
offers a variety of plans to fit your budget and
business needs.
Zebra QLn420 Datasheet
SPECIFICATIONS AT A GLANCE*
Printer Name
Operating Characteristics
QLn420
For information about other printers in the QLn family,
please visit our web site.
Standard Features
• Apple iOS, Android, Windows Mobile & BlackBerry
connectivity
• Direct thermal printing of barcodes, text & graphics
• CPCL, EPL™ and ZPL® programming languages
• 256MB Flash memory supports downloadable
programs, receipt formats, fonts and graphics
(64MB available for user storage)
• 5.0AH removable Li-Ion smart battery
• Built-in battery charger
• Serial 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 (240x128 pixels)
• LCD can be customized using WML (text and icons)
• Printer alerts on the display, help menus
• Tolerance of multiple drops from 6’/ 1829mm 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
• Real-time clock
Printer Specifications
Resolution
203dpi/ 8dots per mm
Memory
128MB RAM; 256MB Flash (standard)
Print Width
4.1”/ 104mm
Environment
• Operating temperature: -4°F/ -20°C ~ 122°F/ 50°C
• Storage/Transport environment:
-13°F/ -25°C ~ 158°F/ 65°C
• Operating humidity: 10% ~ 90% non-condensing
• Storage humidity: 10% ~ 90% non-condensing
Agency Approvals
• Emissions: FCC Part 15, Subpart B, EN55022 Class-B,
EN60950, EN55024 and VCCI class B
• Susceptibility: EN55024, EN61000-4-2,
EN61000-4-3, EN61000-4-4, and EN61000-4-5
• Safety: CE, UL, TÜV, CSA
Media Characteristics
Media Width
2.0”/ 51mm ~ 4.4”/ 112mm
Media Length
0.5”/ 12.7mm ~ 32”/ 813mm or continuous
Maximum Media Roll Size
2.6”/ 66mm O.D. on a 0.75”/ 19mm or
1.375”/ 34.9mm I.D. core
Media Thickness
3.2mil ~ 7.5mil
Media Types
Die-cut labels and tags, linerless labels, receipt paper,
black bar and gap sensing
Physical Characteristics
Width:
Height:
Depth:
Weight:
6.5”/ 165mm
7.35”/ 187mm with beltclip
3.25”/ 82.5mm
2.45 lbs/ 1.1kg with battery
Link-OS Solutions
Software Tools
• Document Design: Quickly design a customized
print solution using your business data and Zebra’s
intuitive, plug-and-print design tools.
• Device Integration: Zebra offers apps and products
designed to help you integrate Zebra devices into
your existing systems.
• Device Management: Manage your print operations
locally and globally with Zebra’s suite of device
management tools.
• Developer Tools: Provides you the tools you need to
create your own apps, including documentation, source
code, programming languages, templates and more.
Firmware
Print Length
• CPCL, EPL and ZPL programming languages
• ZBI 2.x™— powerful programming language that
lets printers run standalone applications, connect to
peripherals, and much more
• Min.: 0.5”/ 12.7mm
• Max.: 32”/ 813mm
Print Speed
Up to 4”/ 102mm per second
Media Sensors
Black mark and gap media sensing using fixed centerposition sensors; label-present sensor for issuing labels
one at a time
Fonts/ Graphics/Symbologies
Fonts and character sets
• Standard Fonts: 25 bitmapped, 1 smooth, scalable
(CG Triumvirate Bold Condensed**)
• Optional Fonts: downloadable bitmapped/scalable fonts
• International Character Sets (optional): Chinese 16x16
(traditional), 16x16 (simplified); Japanese 16x16,
24x24; Korean Mincho
CPCL Barcode Symbologies
• Barcode ratios: 1.5:1, 2:1, 2.5:1, 3:1, 3.5:1
• Linear barcodes: Codabar (NW-7), Code 39,
Code 93, Code 128, EAN-8, EAN-13, 2 & 5 digit addon, Interleaved 2-of-5, UCC/EAN128, UPC-A, UPC-E,
2 & 5 digit add-on
• Two-Dimensional: Aztec, MSI/Plessey, FIM Postnet,
Data Matrix, GS1 DataBar™ (RSS) family, MaxiCode,
MicroPDF417, PDF417, QR Code, TLC39
Communication and Interface Capabilities
• ZebraNet 802.11a/b/g/n radio with support for:
– WEP (PSK only), TKIP and AES encryption
– WPA and WPA2
– 802.1x (with WPA or WPA2 only)
– EAP-FAST, EAP-TTLS, EAP-TLS, PEAP, LEAP
– 802.11d and 802.11i
– Simultaneous Bluetooth 3.0 dual radio
– Wi-Fi Certification
– Fast roaming using PMK caching, CCKM or
Fast Session resumption
• Bluetooth 3.0 radio
– Security modes 1 – 4
– “Made for iPod/iPhone/iPad” certified
– Key Bonding
– 10/100 Ethernet support (via charging cradle)
Cabled Communications Specifications
• USB 2.0 full-speed interface (12Mbps)
• Mini-B connector with optional strain relief
• Serial interface: 14-pin RS-232C port for communication
to terminal or other host up to 115.2Kbps
Options and Accessories
Charging Options
• Charge the battery inside the printer using:
– AC adapter
– Charging and Ethernet cradle
– Vehicle cradle (DC power)
• Charge the battery outside the printer using:
– Smart charger
– Quad charger
Optional features and accessories
• Optional Features and Accessories
• Linerless printing (with silicone platen roller only)
• 8-18VDC power supply with cigarette lighter adapter
• ZBI 2.x
• Spare batteries
• AC adapter
• SC2 smart battery single charger
• Quad battery charger
• QLn4-EC charging and Ethernet cradle
• Shoulder strap
• Forklift mount accessories
– Heavy-duty mount with fanfold tray
– Plate for RAM-arm mounting
– Cradle for easy attach/detach
– DC converters for powering and charging
from forklift batteries
• Hand strap
• Soft case (IP54 rating when used)
• Serial and USB cables with strain relief
• Forklift battery eliminator
ASIA-PACIFIC HEADQUARTERS
Zebra Technologies Asia Pacific Pte Ltd
71 Robinson Road, #05-02/03, Singapore 068895 T: 65 6858 0722 F: 65 6885 0838
Asia-Pacific Sales Representations: Australia, China, Hong Kong, India, Indonesia, Japan, Malaysia,
New Zealand, Philippines, South Korea, Singapore, Thailand, Taiwan, Vietnam
www.zebra.com
Other Locations
USA: California, Georgia, Illinois, Rhode Island, Texas, Wisconsin Europe: France, Germany, Italy, the Netherlands, Poland, Spain, Sweden, Turkey, United Kingdom
Latin America: Brazil, Florida (LA Headquarters in USA), Mexico Middle East & Africa: Dubai, South Africa
(4/14)AP
*Specifications subject to change without notice. **Contains UFST® from Agfa Monotype Corporation. ©2014 ZIH Corp. Link-OS, Zebra, the Zebra head graphic, ZebraNet and ZPL are trademarks of ZIH
Corp, registered in many jurisdictions worldwide. The QLn series and all product names and numbers are Zebra trademarks. All rights reserved. Android and the Android Robot are trademarks of Google
Inc. iPad, iPhone and iPod are trademarks of Apple Inc., registered in the US and other countries. Wi-Fi and the Wi-Fi logo are registered trademarks of Wi-Fi Alliance. Windows and the Windows logo are
registered trademarks of Microsoft Corporation in the United States and other countries. All other trademarks are the property of their respective owners.
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