Zebra GC420t Thermal Transfer Desktop Printer: Zebra’s GC420™ Series printers offer professional printing for any budget. These affordable, easy-to-use printers are ideal for a variety of basic labeling applications. Although value priced, these printers are 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.