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General| Print technology | Direct thermal |
|---|---|
| Maximum resolution | 203 x 203 DPI |
| Maximum printing width | 104 mm |
| Ribbon width | 110 mm |
| Core diameter | 38 mm |
| Media thickness | 0.08 - 0.18 mm |
| Maximum print size | 104 x 991 mm |
| Maximum media length | 991 mm |
| Maximum roll diameter | 127 mm |
| Media thickness (imperial) | 0.003 - 0.007 \ |
| Maximum media length (imperial) | 39 \ |
| Supported paper width (imperial) | 4.09 \ |
| Ethernet LAN | No |
| RS-232 interface | Yes |
| USB 1.1 ports quantity | 1 |
| Connectivity technology | Wired |
| Certification | CE, FCC |
| Internal memory | 8 MB |
| Built-in barcodes | CODABAR (NW-7), Code 128 (A/B/C), Code 39, Code 49, Code 93, EAN13, EAN8, Industrial 2/5, Interleaved 2/5, MaxiCode, PDF417, POSTNET, QR Code, UPC-A, UPC-E |
| Built-in processor | 32-bit RISC |
| Page description languages | EPL2, ZPL, ZPL II |
| Dimensions (WxDxH) | 201 x 208 x 170 mm |
| Power requirements | 100-240V, 50-60Hz |
| AC adapter output current | 2.5 A |
| AC adapter output voltage | 20 V |
| Storage temperature (T-T) | -40 - 60 °C |
| Operating temperature (T-T) | 40 - 105 °F |
| Storage relative humidity (H-H) | 5 - 95 % |
| Operating relative humidity (H-H) | 10 - 90 % |
| Product color | White |
Weight and Dimensions| Depth | 208 mm |
|---|---|
| Width | 201 mm |
| Height | 170 mm |
| Weight | 1400 g |
Explains the intended audience for the user guide and who can benefit from its content.
Outlines the structure and organization of the user guide, detailing its sections.
Provides essential contact information for technical support and other Zebra departments.
Explains the formatting, symbols, and conventions used throughout the manual.
Describes the GC420d printer model, its features, specifications, and capabilities.
Lists the contents of the printer package, including all included accessories.
Provides instructions for safely unpacking the printer and inspecting for shipping damage.
Illustrates the physical layout and key components of the GC420d printer.
Details the various hardware features and functions of the GC420d printer.
Explains the function and operation of the printer's power switch and feed button.
Step-by-step guide for connecting the printer to a power source and ensuring proper setup.
Instructions for loading various types of media rolls into the printer.
Details how to prepare media for loading, including removing excess or damaged sections.
Guides on correctly seating the media roll onto the printer's holders.
Instructions for printing a configuration label to verify printer functionality.
Guides on installing necessary printer drivers and software before connection.
Covers interface options (USB, Serial, Parallel) and cable requirements for PC connection.
Describes how to test printer communications and verify a successful installation.
Explains how to print and interpret the printer's configuration status label.
Provides guidance on proper storage procedures to prevent printer damage.
Details direct thermal printing process and safety precautions for the hot printhead.
Describes various operational modes like Tear-Off and Label Dispense.
Details various types of media compatible with the printer and their characteristics.
Instructions for reloading media when it runs out during printing operations.
Guidance on setting or adjusting the print width for different media sizes.
Instructions for optimizing print quality via density, speed, and other settings.
Explains the printer's automatic media detection and calibration capabilities.
Specific instructions for loading and printing using fan-fold media.
Discusses considerations for using externally mounted media rolls with the printer.
Covers printer font support, scaling, international character sets, and font downloading.
Explains how to set up language, region, and character sets for permanent fonts.
Details how to manage and identify fonts loaded within the printer's memory.
Describes how to operate the printer independently of a computer connection.
Methods for transferring graphics, fonts, and other files to the printer.
Information on printer usage reporting, maintenance alerts, and printhead life.
Explains the EPL Line Mode printing feature and its specific applications.
Details the operation, setup, and usage of the factory-installed label dispenser.
Describes the Keyboard Display Unit (KDU) for accessing EPL label forms.
Explains the KDU Plus, an enhanced unit with memory for storing forms and logos.
Information on the ZBI 2.0 optional programming language for custom printer operations.
General guide to cleaning supplies and methods for various printer parts.
Specific instructions for safely and effectively cleaning the printer's printhead.
How to clean debris, dust, and residue from the media path and guides.
Instructions for cleaning dust and contaminants from the printer's media sensors.
Details on cleaning the platen roller and procedures for its replacement.
Refers to the troubleshooting section for advanced printer maintenance.
Step-by-step guide for removing and installing a new printer printhead.
Explains the meaning of different LED status light patterns and colors.
Provides solutions and steps to resolve errors indicated by the printer's status lights.
Addresses common issues like no print, poor quality, or misaligned labels.
Guides on performing manual media calibration when auto-calibration fails.
Describes diagnostic tests, such as printing a configuration label.
Instructions on how to restore the printer to its original factory default settings.
Steps to diagnose data transfer issues between the printer and a computer.
Explains various printer functions accessed by holding the feed button during power-up.
Details the wiring and pinout for connecting the printer via USB.
Provides wiring and pinout information for parallel connections.
Details the wiring and pinout for connecting the printer via a serial port.
Provides the physical dimensions and measurements of the GC420d printer.
Shows the physical dimensions of the printer when equipped with the label dispenser.
Explains how to change and manage printer settings using ZPL programming commands.
Maps printer configuration status items to their corresponding ZPL commands.
Discusses managing printer memory, objects, and status reports using ZPL.
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