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Citizen CL-S6621UGWN Barcode Label Printer

Citizen CL-S6621 - Thermal transfer printing, 203 dpi, 6.6" print width, USB, Serial, Wi-Fi Interfaces, and US Power cord. Cables sold separately.
All-metal mechanisms for strength and durability

The unique 6-inch CL-S6621 label printer sets a new standard for desktop machines. Smaller and more efficient than any other comparable printer, the CL-S6621 offers automatic Cross-Emulation, for easy integration and compatibility, and features our advanced Hi"'Lift Mechanism. The CL-S6621 delivers precision printing with fast media loading and ease of use, making it the perfect solution for tough, reliable and high volume label printing.

General Information

  • Product Type: Direct Thermal/Thermal Transfer Printer
  • Product Series: CL
  • Brand Name: Citizen
  • Manufacturer: Citizen Micro HumanTech
  • Product Model: CL-S6621
  • Product Name: CL-S6621 Label Printer

Technical Information

  • Maximum Mono Print Speed: 6 in/s
  • Maximum Print Resolution: 203 dpi
  • Print Color: Monochrome
  • Maximum Print Width: 6.60"
  • Recommended Use: Label Print
  • Features: Tear Bar

Physical Characteristics

  • Height: 10.7"
  • Width: 11.9"
  • Depth: 11.4"
  • Form Factor: Desktop
  • Weight (Approximate): 17.42 lb


  • USB: Yes
  • Serial Port: Yes

Media Types & Handling

  • Maximum Label Width: 7.01"
  • Maximum Label Length: 32"
  • Media Type:
    • Label
    • Gap
    • Card
    • Notch
    • Black Mark
    • Tag
    • Perforated Label
    • Ticket
  • Media Thickness: 10 mil
  • Media Sensor:
    • Adjustable Media Sensor
    • Transmissive Media Sensor
    • Reflective Media Sensor
    • Paper Low Sensor
  • Label Core Size: 3"
  • Ribbon Core Size: 1"
  • Maximum Roll Diameter: 5"


  • Green Compliant: Yes
  • Green Compliance Certificate/Authority:
    • RoHS
  • Platform Supported: PC
  • Package Contents:
    • CL-S6621 Label Printer
    • Software & Drivers CD
    • CL-S6621 Label Printer
    • Software & Drivers CD


  • Standard Memory: 32 MB
  • Flash Memory: 8 MB

Network & Communication

  • Wireless LAN: Yes
  • Wireless LAN Standard: IEEE 802.11b/g/n


  • Limited Warranty: 2 Year

Fonts & Emulation

  • Language Emulation: ZPL II

Full specifications (PDF)

Full specifications (PDF)

Brand Citizen
Model CL-S6621
Max Roll Outer Diameter 5
Included Features Peeler
Print Resolution 203 dpi
Print Speed 6
Print Method Thermal Transfer, Direct Thermal
Interface Options USB, Wireless, Serial
Max Label Width 7.00
Label Core 1 inch
Printer Type Desktop
Printer Mobility Not Mobile
Ribbon Core 1
Recommended Labels for Model: Citizen CL-S6621 Barcode Label Printer
Recommended Ribbons for Model: Citizen CL-S6621 Barcode Label Printer
Recommended Printheads for Model: Citizen CL-S6621 Barcode Label Printer
Citizen Printheads (PPM80005-00)
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The Citizen CL-S6621UGWN is also known as Citizen America CL-S6621UGWN or CLS6621UGWN .