Zebra GX420D (GK42-200220-000)

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The Zebra GX420D (model number GK42-200220-000) is a direct thermal desktop printer designed primarily for office and light industrial usage. It features a print width of up to 4.09 inches and a maximum print speed of 4 inches per second, making it suitable for medium-volume labeling tasks. The printer supports resolutions of 203 dpi, delivering clear and precise barcode and text printing. Connectivity options include USB 2.0 as standard, with optional serial and ethernet interfaces available. The device is compatible with a variety of media types including continuous, die-cut, and black-marked labels, supporting media width from 0.79 to 4.25 inches. Its compact design and easy media loading mechanism improve usability and space efficiency.

Internally, the GX420D uses a 32-bit processor for swift data processing and features 8MB SDRAM and 4MB Flash memory. The printer supports multiple programming languages including Zebra Programming Language (ZPL) and EPL for versatile application integration. It is equipped with sensors for media calibration and head-open detection, enhancing print reliability and maintenance ease.

The Zebra GX420D offers efficient direct thermal printing ideal for quick label production without the need for ribbons. Its compact footprint allows it to fit conveniently in tight office or retail spaces. The printer’s ease of use is enhanced by a simple clamshell design for straightforward media loading and minimal downtime. It supports multiple connectivity options, including USB, serial, and ethernet, making integration flexible with various systems. The printer provides sharp, high-quality print output at 203 dpi resolution, suitable for barcode labeling and text. Additionally, its robust build ensures reliable performance in office and light industrial environments, reducing maintenance frequency.

Being a direct thermal printer, the Zebra GX420D's output is sensitive to heat and light, which may cause labels to fade over time, limiting durability for long-term applications. The printer's resolution is capped at 203 dpi, which may not be sufficient for ultra-high detail or very small barcode printing. It does not support thermal transfer printing, so ribbons cannot be used for more durable labels. Media width support is limited to 4.25 inches maximum, restricting label size flexibility for certain applications. While connectivity options are adequate, the base model may require additional modules to access serial or ethernet interfaces, adding to cost and complexity. The device is relatively basic compared to newer models with more advanced features like color printing or higher resolutions.

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