Spec Sheet
Specifications
Markets and 
Applications
Retail
•  Return tags 
•  Asset labels 
•  Shelf labels 
•  Price markdowns 
•  Information labels 
•  Pharmacy labels 
Healthcare
•  Prescription labels 
•  Lab and specimen 
labels 
•  Patient ID wristbands  
•  Asset labels 
•  Blood and IV bag 
labels 
•  Patient record labels  
Transportation & 
Logistics 
•  Shipping and 
receiving labels 
•  Packing slips
•  Asset labels 
Manufacturing 
•  Shipping labels 
•  Receiving labels 
•  Agency labels 
•  Packing list 
•  Inventory 
•  Asset tags 
Ribbon Outside 
Diameter 
2.6 in./66 mm (300 m); 1.34 in./34 mm (74 m) 
Ribbon Standard 
Length 
984 ft. (300 m); 243 ft. (74 m) 
Ribbon Ratio  1:4 ribbon to media (300 m) 
1:1 ribbon to media (74 m) 
Ribbon Width  1.33 in./33.8 mm — 4.3 in./109.2 mm 
Ribbon Core I.D.  300 meter ribbon 1 in./25.4 mm 
74 meter ribbon 0.5 in./12.7 mm 
Operating Characteristics
Operating Temp. 40° to 105° F/4.4° to 41° C
Storage Temp.  -40° to 140° F/-40° to 60° C
Operating Humidity  10% to 90% non-condensing
Storage Humidity 5% to 95% non-condensing
Electrical Auto-detectable (PFC Compliant) 100-240VAC, 
50-60Hz; ENERGY STAR certified; Energy Eciency 
Level VI certified; optional 2750 mAh battery; 
Healthcare models include IEC60601-1 certified 
power supply 
Options and Accessories
Media Handling Dispenser/Peeler: label peel and present with label 
present sensor (factory installed or field installable) 
Cutter (factory installed or field installable) 
Communications 802.11ac Wi-Fi and Bluetooth 4.1 (dual radio), 
(factory installed or field installable) 
User Interface  4.3” full color touch LCD (resolution: 480 wide x 
272 high) with 3-button user interface
Battery  Provides power to the printer to support a full shift 
of printing at maximum print speed; supports all 
connectivity and media handling options
Carrying Case  Carrying case with shoulder strap and handles 
makes it easy to bring your desktop printer and 
battery to the point of application 
Keyboard Display Unit  Zebra Keyboard Display Unit (ZKDU) for stand-
alone printing solutions 
Media Locking Cabinet  Mechanical lock with 2 keys; Kensington® lock 
slot; available on ZD621 healthcare direct thermal 
model only 
Mounting Plate  Secure ZD Series printers to countertops or shelves 
Enclosed Power Supply  Attached power supply accessory for cord-free 
installation 
Fonts/Graphics/Symbologies
Bar Code Ratios 2:1 and 3:1
1D Bar Codes Code 11, Code 39, Code 93, Code 128, ISBT-128, 
UPC-A, UPC-E, EAN-8, EAN-13, UPC and EAN 2-or 
5-digit extensions, Plessey, Postnet, Standard 2-of-
5, Industrial 2-of-5, Interleaved 2-of-5, Logmars, 
MSI, Codabar and Planet Code 
2D Bar Codes Codablock, PDF417, Code 49, DataMatrix, 
MaxiCode, QR Code, MicroPDF, Aztec 
Fonts and Graphics 16 resident expandable ZPL II bitmap fonts, 
two resident scalable ZPL fonts, five resident 
expandable EPL2 fonts, native open-type font 
support, Unicode compliant. China units include 
SimSun simplified Chinese font
Standard Features
• Print methods: Thermal Transfer or Direct Thermal 
• ZPL and EPL programming languages 
• 5 status icon, 3 button user interface 
• Ethernet, Serial, USB 2.0, USB Host 
• Printer setup mobile app for Android & iOS via BLE 
 (Bluetooth Low Energy 5) connection* 
 * BLE is intended for use with Zebra printer setup mobile app only 
• Real Time Clock (RTC) 
• Media dancer for excellent print quality
• OpenACCESS™ for easy media loading 
• Dual-wall frame construction 
• ENERGY STAR® certified 
• ZebraDesigner Essentials – easy label design tool free at 
 www.zebra.com/zebradesigner
• PDF Direct
• Two-year standard warranty
Physical Characteristics
Dimension Direct Thermal: 
8.7 in. L x 7.0 in. W x 5.9 in. H
221 mm L x 177 mm W x 151 mm H
Thermal Transfer: 
10.5 in. L x 8.0 in. W x 7.5 in. H
267 mm L x 202 mm W x 192 mm H
Weight Direct Thermal: 3.6 lbs./1.6 kg
Thermal Transfer: 5.5 lbs./2.5 kg
Printer Specifications
Operating System Link-OS®
Resolution 203 dpi/8 dots per mm 
300 dpi/12 dots per mm (optional) 
Memory 512 MB Flash; 256 MB SDRAM 
64 MB user available non-volatile memory 
8 MB user available SDRAM 
Maximum Print
Width
4.09 in./104 mm for 203 dpi 
4.27 in./108 mm for 300 dpi 
Maximum 
Print Speed
8 in./203 mm per second (203 dpi) 
6 in./152 mm per second (300 dpi)
Media Sensors Full width, moveable reflective/black mark sensor;  
multi-position transmissive/gap sensor 
Firmware ZPL II; EPL 2; XML; ZBI; PDF Direct 
Media and Ribbon Characteristics 
Label Length Maximum: 39.0 in./991 mm
Minimum: 0.25 in./6.4 mm
Media Width Direct Thermal: 0.585 in./15 mm to 4.25 in./ 
108 mm
Thermal Transfer: 0.585 in./15 mm to 4.65 in./ 
118 mm 
Media Roll Size
Maximum outer diameter: 5.0 in./127 mm 
Core inner diameter: 0.5 in. (12.7 mm) and 1.0 in. 
(25.4 mm) standard, 1.5 in. (38.1), 2.0 in., (50.8 mm) 
and 3.0 in. (76.2 mm) using optional adapters 
Media Thickness 0.003 in. (0.08 mm) min.; 0.0075 in. (0.19 mm) max. 
(tear-o mode only) 
Media Types Roll-fed or fan-fold, die cut or continuous with or 
without black mark, label or tag stock, continuous 
receipt paper, wristbands, linerless media* 
* For use only with linerless printer model 
  3
PRODUCT SPEC SHEET
ZD621 4INCH DESKTOP PRINTERS 




