The Zebra GX420d monochrome desktop direct thermal label printer comes equipped with Ethernet, serial, and USB ports, prints 6" per second in black at 203 dpi, and can be used to print labels, tags, receipts, or other media up to 4.09" wide. Direct thermal printers use heat instead of ink and are typically smaller, quieter, faster, and more energy-efficient than dot-matrix printers. The GX420d has a maximum print speed of 6" per second at 203 dpi (dots per inch) and prints labels up to 39” long. The 32-bit processor combined with the 8 MB of SDRAM memory and 4 MB of flash memory offers fast first label printing with extensive media graphics. The Ethernet port enables the printer to be connected to a wired computer network (Ethernet cord sold separately). Serial and USB ports allow connectivity to a computer or other devices (USB cable included). EPL and ZPL programming languages are standard.
The GX420d printer's double-walled casing is made of ABS (acrylonitrile butadiene styrene), which helps resist impact. An open-access design facilitates media loading. 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 printer 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
Label and Liner Width Range
0.75" to 4.25"
Label and Liner Length Range
0.38" to 39"
Maximum Roll Diameter
0.5", 1.0", and 1.5"
Media Thickness Range
0.003" to 0.0075"
Black bar, black mark, continuous, continuous receipt, die-cut, fanfold, gap, notched, perforated, receipt, roll-fed, tag, tag stock
40 to 105 degrees F
10 to 90 percent non-condensing
-40 to 140 degrees F
5 to 95 percent non-condensing
Voltage and Frequency
Auto-detecting 100-240 VAC, 50-60 Hz
6 x 6.75 x 8.25 inches (H x W x D)*
* H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
Label printers, also known as label makers, can be used to print labels, tags, receipts, and other similarly sized media. Direct thermal and thermal transfer label printers use heat instead of ink to print on coated thermal media. A parallel, serial, or USB port allows a label printer to be connected to a computer. An Ethernet port or wireless capabilities may enable it to be connected to a computer network. Label printers can be used in a variety of commercial environments, including warehouses, laboratories, retail stores, health care facilities, and shipping and receiving facilities.
Zebra Technologies manufactures barcode, receipt, kiosk, and radio-frequency identification (RFID) printers and accessories. The company, founded in 1969, is headquartered in Lincolnshire, IL.