Citizen CL-S621 CL-S631 Label Printer - Thermal Transfer

Citizen CL-S621 and CL-S631 Desktop Label Printers

The Citizen CL-S621 and CL-S631 are powerful, versatile desktop printers designed for professional label and ticket production. As the successors to the renowned CLP621/631 series, they combine high-speed performance, precision printing and flexibility with support for both direct thermal and thermal transfer methods. The CL-S621 offers 203 dpi resolution, while the CL-S631 prints at a sharper 300 dpi, ideal for detailed barcodes, logos and images. With a print width of up to 118 mm and speeds up to 150 mm per second, these printers are perfect for applications in retail, logistics, healthcare and production environments. Features such as the patented ARCP system for ribbon tension control, Cross-Emulation (automatic switching between Datamax® and Zebra® ZPL languages) and a durable all-metal print mechanism ensure long-term reliability and efficiency. Standard connectivity includes USB and RS232 interfaces, with optional Ethernet, parallel and Wi-Fi upgrades available. A 2-year manufacturer warranty provides further peace of mind, making the CL-S621 and CL-S631 a top choice for demanding labelling needs.

Key Features

• Flexible desktop label printers for direct thermal and thermal transfer applications
• CL-S621 prints at 203 dpi; CL-S631 offers high-resolution 300 dpi printing
• Prints labels up to 118 mm wide at speeds of up to 150 mm per second
• Features Cross-Emulation for automatic switching between Datamax and Zebra ZPL languages
• Covered by a 2-year manufacturer warranty for dependable performance