GK420
Standard Features
• Print methods: Direct-thermal or thermal-transfer
• Programming languages: EPL and ZPL as standard
• Construction: Dual-wall frame
• Tool-less replacement of printhead and platen
• OpenACCESS™ for easy media loading
• Quick and easy ribbon loading
• Auto-calibration of media
• 32-bit RISC processor
• Odometer
• Unicode™
Printer Specifications
Resolution
• 8 dots per mm/203dpi
• 12 dots per mm/300dpi (GX430t™)
Memory
• Standard: 4MB flash; 8MB SDRAM
• Optional: 64MB (68MB total) flash with real-time
Maximum print length
39.0”/ 990mm
Maximum print speed
• GK420: 5”/ 127mm per second
Media sensors
• Standard: Fixed reflective and transmissive
sensors
• Adjustable reflective and multi-position
transmissive sensor (GX models, optional)
Media Characteristics
Maximum label and liner length
Maximum non-continuous: 39”/ 990mm
Maximum label and liner width
0.75”/ 19mm to 4.25”/ 108mm
Maximum media roll size
5”/ 127mm O.D.
Media thickness
0.003”/ 0.076mm to0.0075”/ 0.19mm
Media types
Roll-fed or fanfold, die-cut or continuous direct thermal
labels with or without black mark, tag
stock, continuous receipt paper, wristbands
Ribbon characteristics
Outside diameter
1.36”/ 35mm
Length
244’/ 74m (when using 0.08mm ribbon thickness)
Ratio
1:1 media roll to ribbon
Width
1.33”/ 33.8mm to 4.3”/ 109.2mm
Core inner diameter
0.5”/ 12.7mm
Operating Characteristics
Environmental
• Operating temperature: 4.4°C to 41°C
• Storage temperature: -40°C to 60°C
• Operating humidity: 10% to 90% non-condensing
• Storage humidity: 5% to 95% non-condensing
Electrical
Auto-detectable (PFC-compliant) 100–240VAC,
50–60Hz
Agency approvals
• Emissions: FCC Part 15, Subpart B, VCCI, C-Tick
• Emissions and Susceptibility: (CE): EN 55022
Class B, EN 61000-3-2, EN 61000-3-0 and EN
55024, CCC
• Safety: CB Scheme IEC 60950:1991 +A1 +A2
+A3 +A4, TÜV NRTL, IRAM NOM, AAMI, CCC
Physical Characteristics
Direct-thermal Thermal-transfer
Width: 6.75”/ 171mm 7.6”/ 193mm
Height: 6.0”/ 152mm 7.5”/ 190mm
Depth: 8.25”/ 210mm 10.0”/ 254mm
Weight: 3 lb/ 1.4kg 4.6 lb/ 2.1kg
Zebralink™ Solutions
Software (downloadable from www.zebra.com)
ZebraDesigner Driver, ZebraDesigner™ Pro,
ZebraDesigner, ZebraNet™ Bridge Enterprise,
ZebraNet Utilities v7.0, Zebra Setup Utilities,
POS DriverNetworking/Co
Networking/Connectivity
• ZebraNet® 10/100 Print Server (optional)
• 802.11g wireless LAN (for GX only)
• Bluetooth® wireless PAN (for GX only)
Firmware
EPL2™, EPL Line Mode (direct-thermal only –
GK420d and GX420d), ZPL II®, XML-enabled
printing, ZBI 2.0™, Web View, Alert
Communication and Interface Capabilities
• Auto-sensing RS-232 serial interface, DB-9
• USB 1.1, bi-directional
• Parallel (Centronics®), bi-directional
• ZebraNet 10/100 Print Server (optional)
• 02.11g wireless (GX models, optional)
• Bluetooth wireless (GX models, optional)
• Wireless options include LCD for visual
communication
Fonts/ Graphics/ Symbologies
Fonts and character sets
• 16 resident expandable ZPL II bitmap fonts
• One resident scalable ZPL font
• Five resident expandable EPL2 fonts
• Native OpenType™ font support
• Unicode-compliant for multi-language
applications
Graphics features
• Supports user-defined fonts and graphics
including custom logos
• ZPL II drawing commands for boxes and lines
Barcode symbologies
• OBarcode ratios: 2:1 (non-rotated) and
3:1 For EPL and ZPL except where noted
• Linear Barcodes: Codabar, Code 11 (ZPL), Code
39, Code 93, Code 128, EAN-8, EAN-13, EAN-14
(ZPL), German Post Code (EPL), GS1 DataBar
(RSS), Industrial 2-of-5 (ZPL), Interleaved 2-of-5,
ISBT-128 (ZPL), Japanese Postnet (EPL), Logmars
(ZPL), MSI, Plessey, Postnet, Standard 2-of-5
(ZPL), UCC/EAN-128 (EPL), UPC-A, UPC-A and
UPC-E with EAN 2 or 5 digit extensions, UPC-E,
UPC and EAN 2 or 5 digit extensions (ZPL)
• Two-dimensional: Codablock (ZPL), Code
49 (ZPL), Data Matrix, (ZPL), MaxiCode,
MicroPDF417, PDF417, QR Code
Options and Accessories
• Label dispenser with label-present sensor
• ZebraNet 10/100 Print Server: internal
and external Ethernet options for network
communication and printing
• 802.11b/g wireless (GX models)
• Bluetooth wireless (GX models)
• Wireless options include LCD for visual
communication
• Adjustable media sensor (GX models)
• Cutter for various media types (GX models)
• 300dpi print resolution printing for fine detail and
crisp images (GX430t)
• 64MB flash memory with real-time clock for total
of 68MB (GX models)
• Font packs: Asian and other international font kits
• KDU Plus™ and KDU™ keyboard display units for
standalone printing solutions
• Interface cables and adaptors