Citizen CT-S310ii Series Thermal Receipt Printer White - USB/Serial (CT-S310IIUPW)

The Citizen CT-S310IIUPW thermal receipt printer is a compact white POS receipt printer designed for retail, restaurant, hospitality, and small business checkout environments. This CT-S310II configuration includes USB and serial connectivity, giving businesses flexible installation options for compatible POS systems, terminals, workstations, and receipt-printing applications.

Spartan POS is an authorized dealer and supports the products it sells. If you are replacing an older receipt printer or building a new checkout station, Spartan POS can help confirm the correct printer interface, receipt paper, cash drawer connection, drivers, and POS software compatibility before ordering.

Quick Answer

The Citizen CT-S310IIUPW is best for businesses that need a white thermal POS receipt printer with USB and serial connectivity for customer receipts, transaction printing, checkout counters, service desks, and daily POS receipt workflows. It uses standard thermal receipt paper and does not require ink, toner, or ribbon.

Best For

• Retail POS checkout counters
• Restaurant and hospitality receipt printing
• Small business POS stations
• Service counters and front desks
• Businesses needing USB or serial printer connectivity
• Replacing compatible older thermal receipt printers

Configuration Details

Part Number	CT-S310IIUPW
Brand	Citizen
Product Family	Citizen CT-S310II
Printer Type	Thermal POS receipt printer
Connectivity	USB and serial
Color	White
Primary Use	POS receipts, customer receipts, transaction printing, and checkout workflows

Key Features

• Thermal receipt printing: Prints receipts without ink, toner, or ribbon.
• USB and serial connectivity: Supports flexible installation with compatible POS systems and terminals.
• White printer housing: Clean appearance for retail counters, restaurant stations, and service desks.
• Compact footprint: Fits easily into tight checkout spaces and counter setups.
• Designed for POS environments: Built for customer receipts, transaction receipts, and everyday checkout printing.
• Energy-efficient operation: Designed with efficient power use and paper-saving features for business environments.
• Reliable Citizen platform: Suitable for daily receipt printing in retail, hospitality, and small business workflows.
• Spartan POS support: Get help confirming software, interface, paper, and cash drawer compatibility before ordering.

USB and Serial POS Connectivity

This Citizen CT-S310IIUPW configuration includes both USB and serial connectivity. USB is commonly used for modern POS workstations, while serial can be important for older POS terminals, legacy systems, and replacement installations where the existing setup requires a serial interface.

Before ordering, confirm which connection type your POS software and hardware require. A printer with the wrong interface may not work with your existing POS system without additional hardware, drivers, or configuration changes.

Compatible Receipt Paper

The Citizen CT-S310II is designed for thermal receipt printing and should be used with compatible thermal receipt paper. For many POS receipt printer setups, 3.125-inch thermal receipt paper is commonly used, but paper width and roll specifications should always be confirmed for your exact printer and POS installation.

Shop compatible receipt paper and related supplies through Receipt Paper and compare additional checkout printer options in Receipt Printers.

Common Use Cases

• Customer receipt printing
• Retail transaction receipts
• Restaurant and cafe receipt printing
• Hospitality and service counter receipts
• Small business checkout stations
• Legacy serial POS printer replacement
• USB-connected workstation receipt printing

Important Product Note

The Citizen CT-S310IIUPW 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, inventory labels, or shipping labels, shop Label Printers instead.

What You May Need to Order

• Compatible thermal receipt paper
• POS software and drivers that support the Citizen CT-S310II printer
• USB or serial cable setup, depending on your installation
• A compatible cash drawer if your checkout setup requires printer-driven cash drawer control
• Additional receipt printers for multi-station retail or restaurant deployments

Healthcare Printing Applications

The CT-S310II can support healthcare receipt, ticket, queue, and front-desk printing workflows when paired with compatible software, paper, drivers, and connection options. Citizen positions receipt printers for healthcare areas such as admissions, queue management, paperwork identification, cafeteria and other service areas, pharmacy receipt printing, and private practice office workflows.

• Clinic, hospital, and private-practice front-desk receipts
• Queue management and patient-service tickets
• Pharmacy checkout, prescription pickup, and customer receipt printing
• Cafeteria, gift shop, and healthcare retail transaction printing
• Self-service terminal receipts and administrative documentation

See related healthcare receipt printers and the full guide to Citizen healthcare printing solutions.

Compatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.

Compatibility Guidance

The Citizen CT-S310IIUPW can work in many POS environments, but compatibility depends on your software, operating system, drivers, connection type, receipt paper, cash drawer requirements, and hardware configuration. Compatibility depends on your POS software, operating system, connection type, drivers, accessories, and configuration. Confirm compatibility before ordering.

Setup Guidance

Before deployment, confirm your POS software requirements, operating system support, driver availability, connection type, receipt paper size, cash drawer needs, and printer configuration. Spartan POS can help review these details before purchase so your receipt printer is better aligned with your checkout workflow.

Related POS Hardware

• Receipt Printers
• Receipt Paper
• Cash Drawers
• Barcode Scanners
• Label Printers
• POS Hardware

Frequently Asked Questions

What is the Citizen CT-S310IIUPW used for?

The Citizen CT-S310IIUPW is used for thermal receipt printing in compatible retail, restaurant, hospitality, service counter, and small business POS environments.

Does the Citizen CT-S310IIUPW use ink?

No. This is a thermal receipt printer, so it prints using compatible thermal receipt paper and does not require ink, toner, or ribbon.

What connection types does this printer support?

This CT-S310IIUPW configuration includes USB and serial connectivity for compatible POS systems, terminals, and workstations.

Is the Citizen CT-S310IIUPW a label printer?

No. The CT-S310IIUPW is a receipt printer for POS transaction receipts. For barcode labels, product labels, inventory labels, or shipping labels, choose a dedicated label printer.

What color is this printer?

This configuration is white.

Can this printer connect to a cash drawer?

Many POS receipt printer setups can control a compatible cash drawer, but the correct cash drawer cable, printer interface, and POS software settings must be confirmed before ordering.

Will this work with my POS system?

It may work if your POS software supports the Citizen CT-S310II, the correct drivers are available, and your system supports the USB or serial connection type used in your setup. Confirm compatibility before ordering.

Can Spartan POS help confirm compatibility?

Yes. Spartan POS supports the products it sells and can help confirm compatibility with your POS software, operating system, connection type, drivers, receipt paper, cash drawer setup, and accessories before ordering.

Bottom Line

The Citizen CT-S310IIUPW is a compact white thermal POS receipt printer for businesses that need reliable USB and serial receipt printing in retail, restaurant, hospitality, and small business checkout environments. With thermal printing, flexible connectivity, and Spartan POS compatibility support, it is a practical option for new POS stations and compatible receipt printer replacements.