Citizen CT-S310II Thermal Receipt Printer (USB & Serial, Eco-Friendly POS Printer, Black)

The Citizen CT-S310II thermal receipt printer is a compact, efficient POS receipt printer designed for retail, restaurant, hospitality, and small business checkout environments. With USB and serial connectivity, the CT-S310II gives businesses flexible installation options for compatible POS systems, terminals, and receipt-printing workflows.

Quick Answer

The Citizen CT-S310II is best for businesses that need a reliable thermal receipt printer with USB and serial connectivity for POS checkout, order receipts, customer receipts, and everyday transaction printing. It uses standard 3.125-inch thermal receipt paper and is designed for compact checkout counters and busy point-of-sale environments.

Best For

• Retail POS checkout counters
• Restaurants, cafes, and hospitality businesses
• Small business receipt printing
• Front-counter transaction receipts
• Back-office or service-counter printing
• Businesses needing USB and serial POS printer connectivity

Why Choose the Citizen CT-S310II?

The Citizen CT-S310II is built for businesses that need dependable receipt printing without a large printer footprint. Its compact design fits easily into tight checkout spaces, while its thermal print technology helps eliminate the need for ink or toner.

With energy-efficient operation, paper-saving functionality, and reliable daily performance, the CT-S310II is a practical choice for businesses that want a durable receipt printer for standard POS environments.

Key Features

• USB and serial connectivity: Flexible connection options for compatible POS systems
• Thermal receipt printing: Prints receipts without ink, toner, or ribbon
• Fast print performance: Prints up to 160mm per second
• Compact footprint: Fits easily on retail counters, restaurant stations, and service desks
• Paper-saving features: Helps reduce paper usage and operating costs
• ENERGY STAR power supply: Designed with energy-efficient operation in mind
• Long-life performance: LLP technology supports extended printhead life up to 200km
• Reliable daily operation: Built for consistent receipt printing in busy business environments

Compatible Receipt Paper

The Citizen CT-S310II uses standard 3.125-inch thermal receipt paper, also commonly referred to as 80mm thermal receipt paper.

Shop 3.125-inch thermal receipt paper rolls for compatible POS receipt paper options.

USB and Serial POS Connectivity

This CT-S310II configuration includes USB and serial connectivity, making it a strong fit for businesses replacing an older serial receipt printer or connecting to a compatible POS terminal, computer, or workstation. Before ordering, confirm that your POS software and hardware support the printer connection type you plan to use.

Common Use Cases

• Customer receipt printing
• Retail transaction receipts
• Restaurant and hospitality receipts
• Order counter receipt printing
• Service desk receipt printing
• Small business checkout printing

Important Product Note

The Citizen CT-S310II is a thermal receipt printer, not a label printer. It is designed for POS receipts and transaction printing. If you need barcode labels, product labels, or shipping labels, shop a dedicated label printer instead.

Compatibility Guidance

The Citizen CT-S310II can work in many POS environments, but compatibility depends on your software, connection type, drivers, operating system, and hardware configuration. Compatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.

What You May Need to Order

• 3.125-inch thermal receipt paper rolls
• Compatible POS software and drivers
• USB or serial cable setup, depending on your installation
• A compatible cash drawer if your POS setup requires printer-driven cash drawer control

Looking for related POS hardware? Browse receipt printers, cash drawers, and receipt paper for your checkout setup.

FAQ

Is the Citizen CT-S310II a receipt printer?

Yes. The Citizen CT-S310II is a thermal receipt printer designed for POS transaction receipts, customer receipts, and checkout printing.

Does the Citizen CT-S310II use ink?

No. The CT-S310II uses direct thermal receipt paper, so it does not require ink, toner, or ribbon.

What paper does the Citizen CT-S310II use?

The CT-S310II uses standard 3.125-inch thermal receipt paper, also commonly called 80mm thermal receipt paper.

Does this printer have USB and serial connectivity?

Yes. This CT-S310II configuration supports USB and serial connectivity for compatible POS systems and workstations.

Is the Citizen CT-S310II good for restaurants?

Yes. The CT-S310II can be used in restaurant and hospitality environments for receipt printing, provided your POS software and connection requirements are compatible.

Can the Citizen CT-S310II print labels?

No. The CT-S310II is a receipt printer. For barcode labels, product labels, or shipping labels, use a dedicated label printer.

What should I check before ordering?

Confirm your POS software compatibility, operating system, driver support, connection type, receipt paper size, and cash drawer requirements before ordering.

Bottom Line

The Citizen CT-S310II thermal receipt printer is a compact, efficient, and dependable choice for retail, restaurant, hospitality, and small business POS receipt printing. With USB and serial connectivity, fast thermal printing, paper-saving features, and support for standard 3.125-inch receipt paper, it is a practical option for everyday checkout environments.