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Zebra Printer GK420T

  • $ 39999

Product Description
The Zebra GK420t monochrome desktop direct thermal/thermal transfer label printer comes equipped with parallel, serial, and USB ports, prints 5" per second at 203 dpi in a single color, and can be used to print labels, tags, receipts, or other media up to 4.09" wide. This middle level desktop printer can serve as a direct thermal printer, which heats thermal paper to produce the print, or as a thermal transfer printer, which heats a ribbon to produce the print on the paper. Direct thermal/thermal transfer printers use heat instead of ink and are typically smaller, quieter, faster, and more energy-efficient than dot-matrix printers. The GK420t has a maximum print speed of 5" per second at 203 dpi (dots per inch) and prints labels up to 39" long. The 32-bit processor combined with 8 MB of SDRAM memory and 4 MB of flash memory offers faster first label printing with extensive media graphics. EPL and ZPL programming languages are standard.

The GK420t printer's double-walled casing is made of ABS (acrylonitrile butadiene styrene), which helps resist impact. An open-access design facilitates media loading. Parallel, serial, and USB ports allow connectivity to a computer or other devices (cables sold separately). A reflective sensor allows the printer to identify the gaps, holes, notches, or black marks between labels to print the labels accurately. A transmissive sensor enables it to detect when a roll of media has run out. The auto-detectable power adapter can accept AC power between 100 and 240 volts. This product is suitable for use with black bar, black mark, continuous, continuous receipt, die-cut, fanfold, gap, notched, perforated, receipt, roll-fed, tag, or tag stock media (all sold separately). The maximum outside diameter for rolls is 5".



203 dpi (8 dots/mm)


8 MB SDRAM; 4 MB flash

Print Width

4.09" maximum

Print Length


Print Speed


Media Sensors

Reflective, transmissive

Label and Liner Width Range

0.75" to 4.25"

Label and Liner Length Range

0.38" to 39"

Maximum Roll Diameter


Core Diameter

0.5", 1.0", and 1.5"

Media Thickness Range

0.003" to 0.0075"

Media Types

Black bar, black mark, continuous, continuous receipt, die-cut, fanfold, gap, notched, perforated, receipt, roll-fed, tag, tag stock

Operating Temperature

40 to 105 degrees F

Operating Humidity

10 to 90 percent non-condensing

Storage Temperatures

-40 to 140 degrees F

Storage Humidity

5 to 95 percent non-condensing

Voltage and Frequency

Auto-detecting 100-240 VAC, 50-60 Hz


7.5 x 7.6 x 10 inches (H x W x D)*


4.6 lb.

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