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High printing speed
Printing a normal courier label takes just a second, with the first label printing virtually instantaneously.
Long-lasting internal power supply
All printers are internally powered to ensure more reliable operation and avoid problems associated with external power supplies.
Thermal transfer
The CL-S621 is a thermal transfer printer that uses a wide choice of ribbons to print on all types of media.


Technical specifications

Paper Width: Variable Paper Width – 0.5 inches (12.5 mm) – 4.6 inches (118.1 mm)

Load Paper: Durable design - Citizen's proven Hi-Lift™ metal mechanism

Print Speed: Fast Print – 6 inches per second (150 mm per second)

Paper support: Large paper capacity – supports rolls up to 5 inches (127 mm)

Ribbon Options: Wide range of ribbon options – Use up to 360 meters of rolled ribbon indoors and outdoors

Paper Thickness: Paper thickness up to 0.250 mm

Hi-Open™ for vertical opening, no increase in bulk and secure closure.

No more illegible labels – ARCP™ ribbon control technology ensures clear prints.

Small footprint – integrated power supply allows for an optimized workstation

Energy: Internal power supply for maximum reliability

Media sensor:
Notch sensor
Adjustable support sensor
Label gap sensor

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Printing Technology
Thermal Transfer + Direct Thermal

203 dpi

Print speed (maximum)
4 inches per second (100 mm/s)

Print Width (maximum)
4 inches (104 mm)

Media Width (min to max)
0.5 to 4 inches (12.5 to 118 mm)

Roll Size (maximum), Spindle Size
Inside diameter 5 inches (125 mm) Outside diameter 8 inches (200 mm)
Chuck size 1 inch (25mm)

Paper thickness (min and max)
63.5 to 254 μm

Support length (min and max)
0.25 to 64 inches (6.35 to 1625.6 mm)

Mount Sensor
Fully adjustable clearance, notch and reflective black marker

Main Interface
Dual Interface Series (RS-232C), USB (version 1.1)

Wireless LAN standards 802.11 b and 802.11g, 100 meters, 64/128 bit WEP, WPA, up to 54Mbps, Ethernet (10/100 BaseT), Parallel (IEEE 1284 compliant)

Tape dimensions
Maximum external diameter 2.9 inches (74mm). 360 meters long.
1 inch (25mm) chuck

Winding and type of tape
Ink side internal or external switch selectable. Type wax, wax/resin or resin

Ribbon System
ARCP™ automatic belt tension adjustment

Hi-Lift™ metal mechanism with wide opening

Control Panel
4 buttons and 4 LEDs

Emulations (Languages)
Datamax® I-Class™ & DMX400™, Cross-Emulation™ – automatic switching between Zebra® ZPL II® and Datamax® I-Class®, DMX400, Zebra® ZPL-II®, BASIC Interpreter – for data processing

Flash (Non-Volatile Memory)
4 MB, 1 MB available for user

Dimensions (L x W x H) and Weight
231 x 289 x 270 mm, 4.5 kg

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