Star Micronics SK5-31UD-LQW-H-SP3 Kiosk Printer Direct Thermal 250 mm/sec USB Ethernet

The Star Micronics SK5-31UD-LQW-H-SP3 kiosk printer is a direct thermal POS printer engineered for seamless integration into unattended self-service terminals and kiosks. Operating at a reliable print speed of 250 mm/sec, this compact device delivers high-resolution output at 203 dpi for clear text, graphics, and barcodes. It is equipped with an integrated presenter unit, an automatic cutter with a durability of 2 million cuts, and a flexible 12-position paper roll holder that accommodates various installation configurations on either the left or right side.

Advantages

This kiosk printer provides efficient high-volume printing with a maximum speed of 250 millimeters per second, ensuring minimal wait times in public terminals. The direct thermal print technology eliminates the need for ribbons or ink, simplifying ongoing maintenance. The integrated presenter and document retract function prevent ticket loss and reduce clutter at the terminal opening. Built-in anti-jam technology and multiple sensors ensure continuous operation, while adjustable paper widths and support for media thickness up to 150 micrometers offer broad media compatibility.

Suitable for

• Self-service ticketing kiosks
• Payment and banking terminals
• Information touchpoints
• Retail point-of-sale systems requiring embedded printing

When it may not be suitable

This printer is not designed for desktop office printing or environments requiring multi-part carbon copies, as it relies strictly on direct thermal paper. It is intended for integrated kiosk enclosures and may not be optimal for standalone desktop use without proper housing.

Key specifications

• Direct thermal print technology
• Print speed up to 250 mm/sec
• Resolution of 203 dpi
• Maximum roll diameter of 15 cm
• Media thickness from 59 to 150 µm
• Adjustable paper width from 54 to 82.5 mm
• Wired connectivity via USB and Ethernet LAN
• Auto-cutter durability of 2 million cuts
• Paper near end, paper end, black mark, and presenter sensors

How to use

Mount the printer securely inside a compatible kiosk enclosure using the available dimensions and mounting points. Connect the device to a host system using the wired USB or Ethernet interface. Load thermal paper rolls into the adjustable holder, ensuring the media is correctly aligned with the easy-load spindle. Configure the printer drivers and software development kits according to the operating system, such as Windows, Linux, or Android, before initiating print jobs for receipts, tickets, or vouchers.

What to consider before purchase

• Verify physical dimensions and mounting compatibility with the intended kiosk enclosure
• Confirm interface requirements match the host system setup, specifically USB or Ethernet LAN
• Ensure the maximum roll diameter of 15 cm fits the available internal space
• Check operating system compatibility with the provided software development kits

Regularly clean the thermal print head and sensors to maintain optimal print quality and ensure reliable sensor detection in high-use unattended environments.