The Citizen CT S310 driver connects this receipt printer to Windows, allowing compatible applications to send print jobs and use its printing settings. For Windows 11, 10, 8, or 7, choose a driver package that explicitly supports your operating system and the exact printer model before installing.

Key Features

• Windows printing integration: Enables compatible point-of-sale and other Windows applications to send receipts to the Citizen CT S310.
• Receipt layout settings: Provides access to supported paper widths, orientation, and other preferences so printed output matches your receipt format.
• Print job management: Lets you manage the printer through the Windows print queue, including checking pending jobs and canceling unwanted output.
• Supported hardware controls: Depending on the driver package and printer configuration, offers settings for functions such as receipt cutting and cash drawer operation.

How to Install

1. Check your Windows version. Confirm whether your computer runs Windows 11, 10, 8, or 7, and check its system type. Select a Citizen driver package that lists support for both your Windows version and the CT S310; do not assume that a package for a similarly named model is interchangeable.

1. Prepare the printer. Load receipt paper, connect the power supply, and check that no error indicator is active. Follow the package instructions on when to connect the printer’s data cable, since some installers require the connection only after setup begins.

1. Run the installer. Extract the download if necessary, then open the setup program. Approve the Windows permission prompt if requested and follow the installation instructions.

1. Choose the correct connection. Select the Citizen CT S310 when prompted and use the port that matches your physical connection. If setup does not identify the printer automatically, consult the included instructions rather than selecting an arbitrary port.

1. Verify printing. Open the printer’s properties in Windows and print a test page. Then check the paper settings in your receipt application and try a sample receipt to confirm that text, spacing, and any supported cutting function work as expected.

If installation fails, recheck the package’s compatibility details and the cable or port selection before attempting another installation.

Common Issues and Fixes

• Install fails or setup stops: Disconnect the printer, remove old Citizen drivers via Print Management, run the installer as administrator, then reconnect USB. For network models, confirm the correct USB or TCP/IP port before finishing.
• Device not detected: Check power and USB cable, try a rear USB port, and verify the printer appears in Device Manager. For Ethernet, confirm the printer IP, subnet, and that port 9100 is reachable.
• Version or driver conflicts: Uninstall previous CT-S310/Citizen POS drivers and restart before installing the current package. Match 32/64-bit Windows and avoid mixing generic thermal drivers with Citizen’s driver; if output is garbled, reselect CT-S310 and the correct paper width.