Zebra ZD421D 4-inch Direct Thermal Desktop Label Printer (Model ZD4A042-D0EM00EZ) – 203 dpi, USB, Ethernet, Bluetooth LE, Print DNA
Estimated delivery within UAE 1-2 working days
Delivery to other countries 3-5 working days
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4 in (≈104 mm) print width, 203 dpi direct thermal printing (no ribbon)
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Connectivity: USB, USB Host, Ethernet, Bluetooth Low Energy (BTLE 5)
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Max print speed ~152 mm/s (~6 in/s)
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Includes Zebra Print DNA software suite for easy setup, remote management, security features
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Supports EZPL, ZPL II, EPL2, plus field-upgradeable connectivity options
The Zebra ZD421D (ZD4A042-D0EM00EZ) is a 4-inch direct thermal desktop label printer designed for environments where a reliable, flexible, and secure printing solution is needed. It is part of Zebra’s evolved ZD400 series, offering several enhancements over older GK / ZD420 models in processing power, connectivity, and manageability.
Core Features & Benefits
Wide Printing Capability
With a maximum print width of approximately 104 mm (4.09 in), this model is suitable for a broad range of label types—from shipping/parcel labels to product tags, pallet labels, and more. The 203 dpi resolution gives good clarity for standard barcodes, text, and simple graphics.
Speed & Efficiency
The printer can output labels at speeds up to 152 mm/s (≈ 6 in/s) under ideal conditions—making it suitable for moderate to high throughput tasks in offices, warehouses, or retail settings.
Connectivity & Flexibility
This variant comes with USB, USB Host, Ethernet, and Bluetooth LE (for configuration and potentially mobile print). The modular design also allows field upgrades (e.g. adding Wi-Fi) if needed in the future.
Software & Manageability
Zebra’s Print DNA suite is baked in, enabling easier setup, diagnostics, remote firmware updates, and advanced monitoring & security. The printer supports multiple command languages (EZPL, ZPL II, EPL2), and can emulate legacy printers via virtual devices to simplify migration.
Operational Design & Usability
Media loading is intuitive, with color-coded guides and an open-access design. The printer includes moveable media sensors to support a variety of label media types. The interface status LEDs and buttons are simplified for quick user interaction.
Use Cases & Applications
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Shipping / logistics labeling (parcel, carton, pallet)
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Barcode labels, product tags, asset labels
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Office / administrative labeling tasks
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Retail shelf signage
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Light manufacturing / assembly line tagging
Considerations & Limitations
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As a direct thermal printer, labels are sensitive to heat, UV, and chemical exposure—long-term durability is lower than thermal transfer.
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It is optimized for standard label use; extreme duty/rugged label jobs may require industrial models.
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Connectivity beyond the built-in USB/Ethernet/BLE may require purchasing modular upgrades (e.g. Wi-Fi) in some variants.
