Product Description

Advanced Desktop Printers

Zebra’s G-Series GK™ desktop printers, including the GK420™ Healthcare model, combine dependable printing with fast print speeds and network manageability. With their easy-to-use design, GK420™ printers enable you to improve operational efficiencies.


Performance Characteristics:

Print width:              4.09″/104 mm

Print resolution:      203 dpi/8 dots per mm

300 dpi/12 dots per mm

Print Speed:             5”/127 mm per second (203 dpi)

Memory:          Standard: 4 MB Flash; 8 MB SDRAM

Print Length:        39”/991 mm

Communication and Interface:  USB 2.0, Bluetooth Low Energy, USB Host

RS-232 Serial (option)

10/100 Ethernet (option)

Wireless: 802.11ac with Bluetooth 4.1 (option)


Physical Characteristics

Direct Thermal

Thermal Transfer


6.75″/171 mm

7.6″/193 mm


6.0″/152 mm

7.5″/191 mm


8.25″/210 mm

10.0″/254 mm


3 lbs/1.4 kg

4.6 lbs/2.1 kg


Media Characteristics

Maximum Label and Liner Length

Maximum non-continuous: 39”/991 mm

Maximum Label and Liner Width

0.75”/19 mm – 4.25”/108 mm

Maximum Media Roll Size

5”/127 mm O.D.

Media Thickness

0.003”/0.08 mm to 0.0075”/0.19 mm



Ribbon Characteristics

Outside diameter: 1.36”/35 mm

Standard length: 244’/74 m

Ratio: 1:1 media to roll to ribbon

Width: 1.33”/33.8 mm to 4.3”/109.2 mm

Core inner diameter: 0.5”/12.7 mm