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Zebra GC420t Barcode Printer

Zebra’s GC420t thermal transfer desktop printer offers professional printing for any budget. This affordable, easy-to-use printer is ideal for a variety of basic labeling applications. Although value priced, this printer is still engineered for reliability and longevity. Like all G-Series printers, the GC420t has a dual-wall framed construction and all-metal printhead to reduce replacement parts and decrease printer downtime. This model connects via USB, serial, or parallel port making set up a breeze. The printers space-saving design contains a powerful 32-bit processor for fast label throughput; a large memory for more graphics storage, longer label formats, and faster processing. It also includes both EPL„¢ and powerful ZPL® programming languages€”making it easy to integrate with other Zebra printers€”while its triple connectivity option offers system integration flexibility. Peeler/dispenser option extends the GC420t printers application versatility. The GC420t delivers all the quality, durability and value you expect from Zebra.

Standard Features

  • 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

  • Resolution: 203 dpi (8 dots/mm)
  • Memory Standard: 8 MB SDRAM; 8 MB Flash
  • Print width: 4.09" (104 mm) maximum
  • Print length: 39€ (991 mm) maximum
  • Print speed: 4" (102 mm)/sec
  • Media sensors: Reflective, Transmissive

Media characteristics

  • Maximum label and liner width: 4.25" (108 mm)
  • Minimum label and liner width: 1.00" (25.4 mm)
  • Maximum label and liner length: 39" (991 mm)
  • Maximum roll diameter: 5" (127 mm)
  • Core diameter: 1.0" (25.4 mm) and 1.5" (38 mm)
  • Media thickness: 0.003" (.08 mm) to 0.007" (0.18 mm)
  • Media types: Roll or fanfold, tag stock

Ribbon characteristics
  • Outside diameter: 1.34" (34 mm)
  • Standard length: 244' (74 m)
  • Ratio: 1:1
  • Ribbon width: Recommended to be at least as wide as media, 1.33" (33.8 mm) to 4.3" (110 mm)
  • ID Core: 0.5" (12.7 mm)

Operating characteristics

  • Operating temperature: TT: Operating temperature 40° F (5° C) to 105° F (41° C) Thermal transfer, DT: Operating temperature 40° F (5° C) to 105° F (41° C) Direct thermal
  • Storage temperatures: -40° F (-40° C) to 140° F (60° C)
  • Operating humidity:10-90% non-condensing R.H.
  • Storage humidity: 5-95% non-condensing R.H.
  • Electrical: Auto-detecting (PFC compliant) 100-240 VAC, 50-60 Hz
  • Agency approvals: TUV-R NRTL, TUV-R CB, NOM, KCC, CE, FCC Class-B

Physical characteristics

  • Width: 7.9" (201 mm)
  • Height: 6.8" (173 mm)
  • Depth: 9.4" (239 mm)
  • Weight: 3.2 lbs (1.5 kg)
  • Orientation: Center

Customer questions & answers

1. Question: printer is color?
Answer: No, the printer is monochrome so it will only ever print in one color. That color can change if you load a color ribbon in the printer.

2. Question: can this printer print on a roll of "card stock" paper?
Answer: yes- but that depends on the thickness. The Zebra printers can print on card stock up to 10 mil thick, (about the thickness of a library card). The typical card stock applications are apparel tags and tickets -both are usually 7 to 8 mil thick. This is a direct thermal printer so it can only use DT material, as opposed to thermal transfer card stock which requires a ribbon.

3. Question: can I use a ribbon in this printer?
Answer: Yes, the Zebra - GC420t Thermal Transfer Desktop Printer uses a ribbon to print.

4. Question: Is this compatible with Windows 10? Also, is it compatible with ios as we want to be able to print from our ipads
Answer: The Zebra - GC420t is for use with Windows 10 and above, Mac OS X 10.6 Snow Leopard and above, and Linux systems using current CUPS printer drivers.

5. Question: is it capable of printing serialization?
Answer: Yes, the GC402t is capable of printing serialization.

6. Question: Does this have an external slot on the back where you can feel labels from a larger roll into it?
Answer: Yes it does have an external slot for 3" core rolls or fanfold


Model NumberGC420t
Printer Functions Print
Type Label Printer
Color White
Connectivity Bidirectional parallel, USB 2.0 Type B, RS-232
Weight 2.40 kg
MPN GC420-100521-000
Print speed 4/102 mm per second maximum
Resolution 203 dpi/8 dots per mm
Dimensions (W, H, L ) in cm 20.1 x 17 x 20.8
Warranty 1 year warranty