User Manual
Table Of Contents
- About This Document
- Contents
- Introduction
- Getting Started
- Print Operations
- Determining Printer Configuration
- Thermal Printing
- Modes of Printing
- Print Media Types
- Replacing Supplies
- Adjusting the Print Width
- Adjusting the Print Quality
- Media Sensing
- Printing on Fan-Fold Media
- Printing with Externally Mounted Roll Media
- Fonts and Your Printer
- Stand Alone Printing
- Sending Files to the Printer
- Print Meter
- EPL Line Mode
- Printer Options
- Maintenance
- Troubleshooting
- Appendix
Introduction
GK Series Thermal Printers
2
980608-001 Rev. A GK420d User Guide 12/14/07
GK Series Thermal Printers
The Zebra GK model is your best value in a basic desktop thermal printer. The GK420d printer
provides direct thermal printing at speeds up to 5 ips (inches per second) at a 203 dpi (dots per
inch) print density. The GK420d supports both ZPL and EPL Zebra printer programming
languages and a wide variety of interface and feature options.
The G-Series™ printer features:
• Automatic printer language detection and switching between ZPL and EPL programming
and label formats.
• OpenAccess™ design for simplified media loading.
• Color-coded operator controls and media guides.
• Resident scalable font, supports font download, Unicode fonts and resident bitmap fonts.
• Improved printer performance: faster print speeds, 32-bit processor, and VCSEL laser
media sensing.
• Printhead test and maintenance reporting.
• The G-Series direct thermal printer models also include support for Line Mode printing to
support EPL1 legacy programming based printing applications.
The GK printers offer basic printer options:
• Label Dispense (Peel-Off)
• Internal 10/100 Print Server and Ethernet Interface
This users guide provides all of the information you will need to operate your printer on a daily
basis. To create label formats, refer to your programming guides or label design applications
such as Zebra Designer.
Your printer, when connected to a host computer, functions as a complete system for printing
labels and tags.
Note • Many printer settings may also be controlled by your printer’s driver or label design
software. Refer to the driver or software documentation for more information.