POS printer Citizen CT-S310-II — Direct thermal 203 x 203 DPI, 160 mm/s, 80/58 mm, wired, black

Citizen CT-S310-II is a wired direct thermal POS printer designed for receipt and barcode printing in retail, hospitality and point-of-sale environments. The printer offers 203 x 203 DPI resolution and a maximum print speed of 160 mm/s. It accepts 80 mm and 58 mm paper widths, supports media thickness between 65 and 75 µm and accommodates paper rolls up to 83 mm in diameter. The CT-S310-II combines a compact 1.8 kg design with an autocutter rated for two million cuts and patented long life printing technology to deliver durable, efficient operation.

Advantages

The CT-S310-II provides fast direct thermal printing suitable for high-volume receipt environments while keeping a small footprint. Its ENERGY STAR® power supply, paper-save function and halogen-free housing with recycled-material packaging reduce energy use and environmental impact. The device includes an easy-maintenance cutter and LLP (long life printing) technology that extends print head life to over 200 km, helping lower running costs and service needs. Wired connectivity and a standard USB interface ensure straightforward integration with existing POS systems.

Suitable for

• Retail point-of-sale terminals and checkout counters
• Hospitality environments such as restaurants and cafes
• Small and medium-sized businesses requiring receipts or barcode labels
• Any application needing compact, reliable receipt printing

Key specifications

• Print technology: Direct thermal
• Print resolution: 203 x 203 DPI
• Maximum print speed: 160 mm/s
• Supported paper widths: 80 mm and 58 mm
• Supported media thickness: 65–75 µm
• Maximum paper roll diameter: 83 mm
• Autocutter life: rated for 2,000,000 cuts
• Compact weight: 1.8 kg
• Product colour: Black
• Connectivity: Wired (includes USB)
• Environmental features: ENERGY STAR® power supply, halogen-free housing, recycled-material packaging

How to use

Install the CT-S310-II on a stable surface near the point-of-sale terminal and connect the printer to the host system using the supplied wired interface and USB cable. Load a compatible thermal paper roll (58 mm or 80 mm) ensuring the paper edge feeds under the paper guide and through the cutter path. Use the printer driver provided by the POS software or Citizen to configure resolution and print speed settings as required. Regularly check paper supply and perform basic maintenance such as clearing paper jams and replacing the paper roll following the user manual instructions. For cutter maintenance follow scheduled inspection and cleaning procedures recommended by the manufacturer.

Recommendations

Use paper within the specified thickness range (65–75 µm) and keep roll diameter at or below 83 mm to ensure reliable feeding and cutter performance. Enable paper-save or low-density print modes in low-importance printing scenarios to reduce media consumption. Position the printer with adequate ventilation and avoid direct exposure to heat or direct sunlight to preserve printhead life and maintain consistent print quality.