Thermal transfer printer ZD621-HC

direct thermallabelbarcode label

Overview
The ZD621-HC is a 4-inch desktop printer configured for healthcare environments, providing disinfectant-ready materials, UV-resistant housing and an IEC 60601-1 compliant power supply for safe use in clinical settings. Available in direct thermal and thermal transfer models; RFID option available on select SKUs. A 4.3-inch full-color LCD touch display and intuitive setup wizards simplify operation and maintenance. Print DNA and Link-OS enable centralized management, security and deployment tools.

Healthcare Features

• White color scheme preferred for clinical environments
• IEC 60601-1 certified healthcare power supply on Healthcare models
• Disinfectant-ready plastics with sealed button interface for easy cleaning
• UV-resistant housing to support UV cleaning protocols

Key Benefits

• Choice of Direct Thermal or Thermal Transfer print engines; RFID-enabled models available (RFID models are not healthcare-specific)
• Intuitive operation via 4.3 in. full-color LCD touch display (480 x 272) with 3-button interface and LED status icons
• PrintSecure and Print DNA components for evolving device protection and secure deployment
• Enhanced connectivity: Ethernet, Serial, USB 2.0, USB Host; optional dual radio 802.11ac Wi‑Fi + Bluetooth 4.1; BLE for setup app pairing
• Field-installable media-handling and communications options; optional battery for portable/shift-long operation

Standard Features

• Print methods: Thermal Transfer or Direct Thermal
• Printers languages/firmware: ZPL II, EPL 2, XML, ZBI, PDF Direct
• 4.3 in. full-color touch LCD (480 x 272) with 3-button user interface; five status icons
• Ethernet, Serial, USB 2.0, USB Host standard; BLE for mobile printer setup app
• Real Time Clock (RTC); media dancer for print quality; OpenACCESS for easy media loading; dual-wall frame construction; ENERGY STAR certified

Physical Characteristics

• Dimensions (Direct Thermal): 221 mm L x 177 mm W x 151 mm H (8.7 in. x 7.0 in. x 5.9 in.)
• Dimensions (Thermal Transfer): 267 mm L x 202 mm W x 192 mm H (10.5 in. x 8.0 in. x 7.5 in.)
• Weight (Direct Thermal): 1.6 kg (3.6 lbs); (Thermal Transfer): 2.5 kg (5.5 lbs)

Printer Specifications

• Operating System: Link-OS™
• Resolution: 203 dpi standard; optional 300 dpi
• Memory: 512 MB Flash; 256 MB SDRAM; user-available memory varies
• Max print width: 104 mm (203 dpi); 108 mm (300 dpi)
• Max print speed: up to 203 mm/s (203 dpi); 152 mm/s (300 dpi)
• Media sensors: full-width movable reflective/black mark and multi-position transmissive/gap sensors
• Firmware: ZPL II, EPL 2, XML, ZBI, PDF Direct

Media and Ribbon Characteristics

• Label length: 6.4 mm min. to 991 mm max
• Media width – Direct Thermal: 15 mm to 108 mm; Thermal Transfer: 15 mm to 118 mm
• Media roll size: max OD 127 mm; core IDs supported: 12.7 mm, 25.4 mm; optional adapters for larger cores
• Media thickness: 0.08 mm min; 0.19 mm max (tear-off)
• Ribbon: common lengths 300 m and 74 m; width range ≈ 33.8 mm – 109.2 mm; ribbon/label ratios typical

Operating Characteristics

• Operating temperature: 4.4 °C to 41 °C (40 °F to 105 °F)
• Storage temperature: -40 °C to 60 °C
• Operating humidity: 10%–90% non-condensing; storage humidity: 5%–95% non-condensing
• Electrical: Auto-detectable 100–240VAC, 50–60Hz; ENERGY STAR certified; optional 2750 mAh battery; healthcare models include IEC 60601-1 power supply

Options & Accessories

• Media handling: dispenser/peeler, cutter (factory or field-installable)
• Communications: optional 802.11ac Wi‑Fi and Bluetooth 4.1 dual radio
• Battery option for portable printing; carrying case; Keyboard Display Unit (KDU); media locking cabinet (Healthcare direct thermal model)
• Enclosed power supply accessory for cord-free installation

Fonts, Graphics & Symbologies

• 1D and 2D barcode support including Code 39, Code 128, UPC/EAN, GS1, DataMatrix, QR Code, PDF417, Aztec
• Multiple resident bitmap and scalable fonts; native OpenType support; Unicode compliant (China units include SimSun)

Included in the Box

• Printer; AC power supply and cord(s); USB cable; Quick Start Guide; Regulatory Guide
• Thermal transfer models include empty ribbon take-up cores and 300 m ribbon core adapters

Warranty & Services

• Standard limited warranty: minimum two (2) years (varies by region)
• Zebra OneCare maintenance plans available for extended coverage, priority support and advance replacement

Markets and Applications

• Prescription labels
• Lab and specimen labels
• Patient ID wristbands
• Blood and IV bag labels
• Patient record labels
• Asset labels

Technical Specifications

• Model: ZD621-HC
• Print methods: Direct Thermal or Thermal Transfer
• Standard resolution: 203 dpi; optional 300 dpi
• Max print width: ≈ 104 mm (203 dpi)
• Max print speed: up to 203 mm/s (203 dpi)
• Memory: 512 MB Flash; 256 MB SDRAM
• Display: 4.3 in. full-color LCD touch (480 x 272)
• Connectivity: Ethernet, Serial, USB 2.0, USB Host; optional Wi‑Fi 802.11ac + Bluetooth