Star Micronics SK5-31 Direct Thermal Open Frame Kiosk Printer 80mm Single Arm 37951650

In busy self-service kiosks, from ticketing machines in transit hubs to self-checkout lanes in retail stores, the Star Micronics SK5-31 delivers fast, dependable receipt printing. Its open frame design integrates seamlessly into kiosk enclosures, while the single-arm mechanism simplifies paper loading and maintenance. With a 203 dpi resolution and 250 mm/s print speed, it produces crisp receipts in seconds, keeping customer queues moving.

Key specifications

• Direct thermal printing technology – no ink or toner required
• 80 mm print width (3.15 inches) for standard receipts
• High-speed printing up to 250 mm/s
• 203 dpi (8 dots/mm) resolution for clear text and graphics
• Guillotine auto cutter with full and partial cut options
• Supports paper roll diameter up to 150 mm
• Paper thickness range: 65 – 150 µm
• Dual interfaces: USB 2.0 and RS-232C serial
• StarPRNT and ESC/POS emulation for easy integration
• External 24VDC power supply
• High reliability: 60 million lines MCBF, 1 million cutter cuts
• Sensors for paper end, near end, black mark, and cover open
• Operating temperature: 0°C to 50°C
• Compact open frame design for kiosk mounting

Why choose it

The SK5-31 is engineered for 24/7 unattended operation. Its robust construction and high duty cycle reduce downtime, while the auto cutter ensures clean, professional receipts every time. The open frame form factor allows flexible integration into custom kiosk designs, and the single-arm mechanism enables quick paper roll replacement without tools. With both USB and serial connectivity, it fits into a wide range of existing systems.

Ideal use cases

• Self-service kiosks in retail and hospitality
• Ticketing machines for transportation and events
• Self-checkout terminals in supermarkets
• Queue management systems in banks and government offices
• Vending machines and automated payment kiosks

Good to know

The printer is supplied in black and requires an external 24VDC power supply (not included). It supports a maximum paper roll diameter of 150 mm, reducing the frequency of paper changes. For integration, it is compatible with StarPRNT and ESC/POS command sets, ensuring straightforward software development. The cover open sensor enhances safety during maintenance.