POS printer Citizen CT-S4500

The Citizen CT-S4500 is a 4-inch wired direct thermal POS printer designed for wider receipt and ticket printing in retail and hospitality environments. It provides a maximum resolution of 203 x 203 dpi, supports paper widths from 58 mm up to 112 mm and handles media thicknesses between 65 and 150 µm. The printer accepts roll diameters up to 102 mm and includes built-in barcode printing for formats such as CODABAR, Code 39 and QR codes. Its flat-top, front-exit design simplifies hardware integration in tight spaces and helps protect the mechanism from foreign contamination and spills.

Advantages

The CT-S4500 offers wide-format printing with a compact footprint, enabling broader receipts without increasing counter space. With direct thermal technology and a print speed up to 200 mm/s it supports fast transaction processing. ESC/POS compatibility and internal barcode capabilities allow straightforward integration with existing POS systems. Its front-exit paper path and flat-top housing improve durability and make it easier to place additional peripherals on top.

Suitable for

• Retail stores requiring wider receipts or longer transaction details
• Hospitality points of sale such as restaurants and bars
• Ticketing or queue-management desks needing wider ticket formats

Key specifications

• Print technology: Direct thermal
• Maximum resolution: 203 x 203 dpi
• Maximum printing width: 104 mm
• Supported paper widths: 58–112 mm
• Media thickness: 65–150 µm
• Maximum roll diameter: 102 mm
• Print speed: up to 200 mm/s
• Internal memory: 0.384 MB
• Interface: wired (no Wi‑Fi, no Ethernet LAN)
• Command language: ESC/POS
• Built-in barcode support: CODABAR, Code 39, QR code
• Colour: Black
• Weight: 2.5 kg

How to use

Install the Citizen CT-S4500 on a stable counter surface and connect it to your POS system using the provided wired interface. Load a thermal paper roll (58–112 mm width, up to 102 mm diameter) following the front-exit paper path to ensure proper feeding. Use your POS software with ESC/POS commands or the printer’s internal barcode functions to format receipts and print barcodes. Adjust paper thickness settings in the printer driver if required for optimal print quality.

Recommendations

Use high-quality direct thermal paper within the specified thickness range (65–150 µm) and avoid exposing the printer to liquids or direct heat sources. Regularly remove dust and debris from the front-exit path and perform periodic checks of the print head to maintain consistent print quality.