Zebra GC420t Desktop Printer

Offers the flexibility of printing in either direct thermal or thermal transfer mode.

  • Details

  • Specifications At A Glance

Affordability Meets High-Quality

Zebra’s feature-rich, competitively priced GC420™ desktop printer brings Zebra quality, durability and reliable performance to many low- to medium-volume, direct thermal and thermal transfer printing applications.

Compact Design Filled with Powerful Features

The GC420 printer’s compact, space-saving design contains a powerful 32-bit processor for fast label throughput, and 8 MB Flash memory for increased storage of fonts and graphics. The GC420 supports media widths up to 4.25” for standard desktop applications. It also includes both EPL2™ and powerful ZPL II® programming languages—making it easy to integrate with other Zebra printers. Peeler/dispenser option extends the GC420 printer’s versatility to meet an even greater variety of applications.

Ideal for These Applications

  • Government / asset management, documents management, evidence tracking
  • Healthcare / laboratory specimen and blood bank labeling
  • Retail / price labeling and receipt printing
  • Manufacturing / light-industrial work-in-process, product and shipping labeling
  • Transportation & Logistics / boarding tickets, bag tags, parking passes

Printing Specifications
  • 32 bit RISC processor
  • Programming languages: EZPL (ZPL, ZPL II and EPL2)
  • Triple connectivity: USB, parallel and serial
  • Print methods: Direct thermal and thermal transfer, printing of barcodes, text and graphics.
  • OpenACCESS™ for easy media and ribbon loading
  • Microsoft® Windows® drivers
 Printer Specifications
203 dpi/8 dots per mm
8 MB Flash, 8 MB SDRAM (standard)
Print width
4.09”/104 mm
Print length
39”/990 mm
Print speed
4”/102 mm per second maximum
Media sensors
Reflective and transmissive sensors
Media Characteristics
Media width
1.00”/25.4 mm to 4.25”/108 mm
Media length
0.38”/9.6 mm to 39”/990 mm
Maximum media roll size
5”/127 mm O.D. on a 1.00”/25.4 mm,1.5”/38 mm I.D. core
Media thickness
0.003”/0.08 mm to 0.007”/0.18 mm

Media types

  • Roll-fed or fan fold
  • Label stock (die cut or continous, direct thermal or thermal transfer)
  • Tag stock (die cut or continous, direct thermal or thermal transfer)
  • Receipt paper (continous, direct thermal
  • Wristband stock (direct thermal or thermal transfer)
Ribbon Characteristics
Outside diameter
1.34”/34 mm
Standard length
244’ (74 m)
Ribbon capacity
1:1 One ribbon per roll of media
1.33”/33.8 mm to 4.3”/110 mm
Core I.D.
0.5”/12.7 mm
Operating Characteristics
  • Operating Temp: 40° F/5° C to 105° F/41° C
  • Storage Temp: -40° F/-40° C to 140° F/60° C
  • Operating Humidity: 10% to 90%
  • non-condensing R.H.
  • Storage Humidity: 5% to 95% non-condensing R.H.
Agency Approvals
Physical Characteristics

Width: 7.9”/201 mm
Height: 6.7”/170 mm
Depth: 8.2”/208 mm
Weight: 3 lbs/1.4 kg

Width: 7.9”/201 mm
Height: 6.8”/173 mm
Depth: 9.4”/239 mm
Weight: 3.2 lbs/1.5 kg

Zebralink™ Solutions
  • ZebraDesigner™ Pro—An intuitive, easy-to-use software program for creating complex label designs (option)
  • ZebraDesigner—Offers basic features for simple label design
  • ZebraDesigner Driver—The most powerful driver available from Zebra
  • ZPL II®—Zebra Programming Language
  • provides sophisticated label formatting and printer control.
  • EPL2™—Eltron Programming Language with Line Mode simplifies label formatting and enables format compatibility with legacy applications.
Communication and Interface Capabilities
  • Centronics® parallel (36 pin) connector ports
  • RS-232 Serial interface
  • USB V1.1 interface, bi-directional
  • 16 resident expandable ZPL fonts
  • One resident scalable ZPL font
  • 5 resident expandable EPL2 fonts
  • Supports user-defined fonts and graphics—including custom logos
Bar Code Symbologies
  • Bar Code Ratios: 2:1 (non-rotated) and 3:1
  • Linear Bar Codes: Code 11, Code 39, Code 93, Code 128A, B & C (User selectable/Auto), UCC/EAN-128, Code 128, UPC-A, UPC-E, EAN-8, EAN-13, EAN-14, UPC-A and UPC-E with EAN 2 or 5 digit extensions, UPC-E with 2 and 5 add on, Plessey, POSTNET, Standard 2 of 5, Industrial 2 of 5, Interleaved 2 of 5, LOGMARS, MSI, Codabar, and GS1 DataBar™ (formerly RSS), Postnet (5, 9, 11 & 13 digit) Japanese Postnet, Plessey (MSI-1), MSI-3, German Post Code, RSS-14 (limited, truncated, stacked).
  • 2-Dimensional: PDF417 (MicroPDF-417 and MacroPDF-417), Code 49, Maxicode, Codablock, Data Matrix, QR code, and Aztec.
Options and Accessories
  • Dispenser—Label peel and present with label present sensor
  • KDU and KDU Plus™—Keyboard display units for stand-alone printing applications
Electrical Specifications
  • Auto-ranging external power supply with C7 type connector
  • Output: 20 VDC, 2.5A
  • Input: 100-240 VAC, 50-60 Hz


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