Zebra ZD421-HC

The Zebra ZD421-HC is an advanced 4-inch healthcare desktop printer family designed for hospitals, clinics, laboratories, pharmacies and patient-care environments where reliable label and wristband printing must be combined with disinfectant-ready construction, easy operation and secure manageability. Built on the legacy of Zebra’s GK Series and ZD420 healthcare printers, the ZD421-HC brings a more powerful architecture, improved usability and greater configuration flexibility to healthcare workflows. It is positioned as a reliable 4-inch healthcare desktop printer for organisations that need more media width than a compact 2-inch model, while still requiring a practical, easy-to-operate and future-ready printer platform. The ZD421-HC is available in direct thermal, thermal transfer roll and thermal transfer cartridge models, all specifically for healthcare use. The direct thermal model is suitable for labels, wristbands and healthcare printing tasks where ribbon is not required. The thermal transfer roll model supports conventional ribbon-based printing for more durable output. The thermal transfer cartridge model is designed for fast, simple ribbon changes with a fool-proof cartridge system and smart chip support. Healthcare-specific construction is one of the ZD421-HC’s key advantages. The printer uses a healthcare-preferred white colour scheme, disinfectant-ready easy-to-clean plastics, a sealed-button interface and UV-resistant housing to support cleaning protocols in hospitals and clinics. Healthcare models include an IEC 60601-1 compliant power supply for use in healthcare facilities. Typical healthcare applications include prescription labels, lab and specimen labels, patient ID wristbands, blood and IV bag labels, patient record labels and asset labels. In these workflows, consistent label quality supports traceability, patient safety, clinical documentation and efficient healthcare operations. The ZD421-HC supports 203 dpi resolution as standard, with optional 300 dpi resolution for applications requiring smaller text, denser barcodes or more detailed label content. Maximum print width is 104 mm at 203 dpi and 108 mm at 300 dpi. For the thermal transfer cartridge model, maximum print width is listed as 104 mm for both 203 dpi and 300 dpi. Maximum print speed is 152 mm per second at 203 dpi and 102 mm per second at 300 dpi. The printer supports flexible media handling. Label length ranges from 6.4 mm to 991 mm. The direct thermal model supports media widths from 15 mm to 108 mm. The thermal transfer roll model supports media widths from 15 mm to 112 mm. The thermal transfer cartridge model supports media widths from 15 mm to 118 mm. Maximum media roll outside diameter is 127 mm, with standard 12.7 mm and 25.4 mm core sizes and larger core sizes supported through optional adapters. Supported media types include roll-fed or fan-fold media, die-cut or continuous media with or without black mark, tag stock, continuous receipt paper and wristbands. The printer includes a full-width movable reflective / black mark sensor and a multi-position transmissive / gap sensor, giving users more flexibility across different label, tag and wristband formats. Ribbon support depends on the selected thermal transfer configuration. The roll thermal transfer model supports 300 m and 74 m ribbon options. The 300 m ribbon uses a 25.4 mm core and a 1:4 ribbon-to-media ratio, while the 74 m ribbon uses a 12.7 mm core and a 1:1 ribbon-to-media ratio. Ribbon width ranges from 33.8 mm to 109.2 mm. The cartridge model uses a 74 m cartridge ribbon with 109.2 mm ribbon width. Ribbon details apply only to thermal transfer models, not to the direct thermal model. The ribbon cartridge version is especially useful where fast and error-resistant ribbon loading is important. The cartridge is designed for one-way, first-time loading in just a few seconds, and the smart chip indicates when the ribbon needs replacing. This can reduce operator error and training requirements in busy healthcare environments. Daily operation is designed to be simple. The ZD421-HC includes a five-status-icon, three-button user interface that helps users quickly understand printer status and required actions, such as replenishing media or resolving a printer issue. Colour-coded touch points guide users through media handling tasks and support faster media changes. The ZD421-HC uses OpenACCESS for easy media loading and dual-wall frame construction for durability. The printer is designed to fit into healthcare workstations while offering the flexibility required for a wide range of label and wristband applications. Connectivity is flexible and upgradeable. Standard interfaces include USB 2.0 and USB Host. Optional interfaces include Ethernet 10/100, auto-sensing RS-232 serial and dual wireless radio with 802.11ac Wi-Fi and Bluetooth 4.1. Some communication options can be field installed or factory installed depending on configuration. Bluetooth Low Energy is used for Zebra’s printer setup mobile app for Android and iOS, and the supplied material notes that BLE is intended for that setup app only. Print Touch NFC allows compatible devices to tap to pair and print. The ZD421-HC runs on Zebra Link-OS and supports ZPL II, EPL 2, XML, ZBI and PDF Direct. This helps the printer integrate into existing Zebra label environments and allows organisations to continue using established label formats and applications. Zebra’s Print DNA tools also support emulation of languages associated with other printer brands through Virtual Devices. Security and manageability are important strengths. Zebra Print DNA and PrintSecure help configure secure connections, identify vulnerabilities, block unauthorised access and manage printers with confidence. Printer Profile Manager Enterprise allows networked printers to be monitored, updated, secured and troubleshot from a central location, which is useful for healthcare organisations managing printers across departments or facilities. The printer includes 512 MB Flash and 256 MB SDRAM, with 64 MB user-available non-volatile memory and 8 MB user-available SDRAM. Font and graphics support includes resident ZPL II bitmap fonts, scalable ZPL fonts, EPL2 fonts, native OpenType font support and Unicode compliance. Barcode support includes common 1D and 2D symbologies such as Code 39, Code 128, ISBT-128, UPC, EAN, PDF417, DataMatrix, MaxiCode, QR Code, MicroPDF and Aztec. The direct thermal model measures 220.8 mm × 177.5 mm × 150.7 mm and weighs 1.35 kg. The thermal transfer roll model measures 267 mm × 202 mm × 189 mm and weighs 2.05 kg. The thermal transfer cartridge model measures 254 mm × 202 mm × 177 mm and weighs 2.3 kg. This allows healthcare organisations to choose between the most compact direct thermal configuration, conventional ribbon-based printing or simplified cartridge-based ribbon handling. Operating temperature is 4.4°C to 41°C, with operating humidity from 10% to 90% non-condensing. Storage temperature is -40°C to 60°C, with storage humidity from 5% to 95% non-condensing. The printer uses an auto-detectable PFC-compliant 100–240 VAC power supply, is ENERGY STAR certified and Energy Efficiency Level VI certified. Healthcare models include the IEC 60601-1 certified power supply. Options and accessories include dispenser / peeler with label present sensor, cutter, Ethernet, serial, wireless dual radio, battery, carrying case, ZKDU keyboard display unit and enclosed power supply. The battery option supports full-shift printing at maximum print speed and supports all connectivity and media handling options. The carrying case makes it easier to bring the printer and battery to the point of application, but it does not fit when a cutter or peeler is attached. Overall, the Zebra ZD421-HC is a flexible 4-inch healthcare desktop printer family for organisations that need reliable labels, wristbands and healthcare documentation output with easy operation and strong configuration flexibility. Its strongest value lies in its healthcare-ready construction, direct thermal / thermal transfer roll / thermal transfer cartridge choices, 4-inch media support, optional 300 dpi resolution, movable media sensors, Print DNA security and management tools, and broad field-upgradeable options.

Datasheet

Product Features

• Resolution: 203 dpi, 300 dpi

Product Identifiers

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