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
Bluetooth? 3.0
Print Touch? 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 zebra.com/validation. 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)

Memory
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)
Options
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
Accessories:
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)
EAP-FAST, EAP-TTLS, EAP-TLS, PEAP, LEAP
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