CITIZEN CLS-S6621 6" Thermal Transfer Label Printer Series

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Our 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.

Private Products

Warranty specified is Back to Base (BTB) warranty Goodson Imports P/L.
Warranty commencement date is date of hardware Invoice.
Warranty covers Manufacturers Faulty Workmanship
12 Months on Print Head
2 Months on Touch Screen
Warranty excludes:

  • Power supply
  • Interface and Power Cables
  • Consumable products
  • Options
  • Software and Data Recovery
24 months
  • 6" Thermal Transfer Label Printing
  • Tough plastic case with all-metal printhead
  • Front exit - prevents damage from moisture or foreign objects
  • Durable design - Citizen's proven Hi-Lift™ all-metal mechanism
  • Fast print out - 6 inches per second (150 mm per second)
  • Large media capacity - holds rolls up to 4.9 inches (125 mm)
  • Hi-Open™ case for vertical opening, no increase in footprint and safe closing.
  • Low space requirement - integrated power supply enables clean work station
  • No more unreadable labels - the ARCP™ ribbon control technology assures clear prints.
Datasheet140kb cls6621_datasheet.pdf
Seagull Driver13,873kb CIT_7.3.3_M-0.exe
Seagull Driver4,244kb

Products available to purchase

CLS6621G CITIZENCLS6621 6" Thermal Trf Label Printer blk

All Vendor Sku's for this Products

This product is equivalent to the following products

ZT420ZT-420 6" Thermal Transfer Label Printer

Parts documents

Parts layout details

Printing Method
Direct Thermal and Thermal Transfer
Printing Width
Max. 168 mm (6.6 inches)
Printing Length
Max. 16 to 2539.7 mm
Dot Pitch
8 × 8 dots / mm (203 dpi)
Printing Speed (Max.)
Max. 150mm/s (6 inches per second)
1 Scalable, 8 Bitmap resident
Character Table/Code Pages
See User Manual
Bar-code Type
Code3of9,UPC_A,UPC-C, Interleaved 2of5, Code 128,EAN-13,EAN-8,HIBC, CODABAR(NW-7),Plessey,Int2of5,CASE CODE,Code93,ZIP, UPC2DIG ADD, UPC5DIG ADD, UCC/EAN128(for K-MART), RandomWeight, Telepen,FIM,UPS Maxicode, PDF-417, Data Matrix, and QR code.
Paper feed method
Friction Feed
Media Type
Roll, fanfold
(Continuous media, die-cuts media,)
Media width
Min. 50 mm to Max. 178 mm
Paper Roll Diameter
Max Ø 127 mm with 25.4 to 76 mm Core
Media Tickness
Min. 0.0635 mm to Max. 0.254 mm
Auto Cutter
Optional Cutter
Power/Error LED (Green/Red)
Function keys: FEED, STOP, PAUSE,
Power Switch
Datamax® W-Class(tm) & DMX600(tm), Zebra ZPL-II, cross emulation,auto detection ASIC interpreter for data stream processing and ticketing integration
RAM 32MB total, 1.0 MB available for use
FLASH 8MB total, 1.0MB available for use
Transparent sensor, Reflective sensor& Label peeling sensor (if optional Peeler is used)
Standard with USB 2.0 (Full speed) & RS-232C interface
Optional Ethernet or Paralllel IEEE1284 or Wireless Lan.
Driver available
Drivers by Seagull
Windows XP/2003/2008/Vista, Windows 7,Windows 8,Windows Server 2008 R2.
Software Utilities
Bartender Ultralite
Power Supply
Internal 200-240V 1.5A 50/60Hz
Power Consumption
Max. 1.5A
External Dimensions (WxDxH)
303 × 290 × 273 mm
7.9 Kg approx.
Operating Environment
Temperature: 0 to 40 °C
Humidity: 30 to 80% (non-condensing)
Storage Environment
Temperature: -20 to 60 °C
Humidity: 5 to 85% (non-condensing)
EMC/Safety Standards
  • select