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Citizen CL-S6621UGEN Barcode Label Printer

Citizen CL-S6621 - Thermal transfer printing, 203 dpi, 6.6" print width, USB, Ethernet, and Serial Interfaces, and US Power cord. Cables sold separately.
Your satisfaction is guaranteed!
We want to make sure you are completely satisfied with your purchase. Customers must return their product within 30 days of shipment to receive a full credit less a 15% restocking fee. Returns must be presented in new condition with all of the original packaging.
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

  • Ethernet: Yes
  • Ethernet Technology: Fast Ethernet


  • Limited Warranty: 2 Year

Fonts & Emulation

  • Language Emulation: ZPL II

Full specifications (PDF)

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-S6621UGEN is also known as Citizen America CIT-CLS6621UGEN or CLS6621UGEN .