Star Micronics Sanei SK4-31SF-M-ST 80mm Open Frame Kiosk Printer 203dpi 150mm/s USB Serial Cutter Black
Brand: STAR MICRONICS EUROP
37968551
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Sanei SK4-31SF-M-ST 3-Inch Open Frame Kiosk Printer
Compact 80 mm direct thermal printer engine engineered for self-service kiosks, ticketing terminals and embedded POS where reliability and easy paper handling matter.
150 mm/sec print speed203 dpi · 576 dotsUSB 2.0 + RS-232C SerialFull / Partial cutter
The Sanei SK4-31SF-M-ST (Star Micronics part 37968551) is the 3-inch model of the SK4 open frame kiosk series, designed to drop into self-service hardware where space is tight and uptime is critical. With three selectable paper roll positions, dual USB and serial interfaces, and a command-controlled full or partial cutter, it covers receipts, tickets, queue tokens, parking stubs and information slips printed on standard 80 mm thermal rolls. The "M-ST" variant uses a Molex power connector with the included paper holder, ready for integration into kiosk enclosures.
Compatibility Note: This is an open-frame kiosk engine. A 24 V DC power supply (e.g. Star SA4-27A24O-1 / PS60A-24C) is required and is sold separately. A bezel (standard, Anti-Paper Jam or LED) is also typically required for end-user installations.
Best For
✓ Self-service ordering kiosks
✓ Ticketing & queue management terminals
✓ Parking and access control machines
✓ Lottery / amusement / vending kiosks
✓ Information & check-in terminals
✓ OEM POS integrations needing 80 mm receipts
Key Features
Compact Open-Frame Design
At 106 x 150 x 81.7 mm and ~410 g, the SK4-31 squeezes 80 mm printing into a footprint suitable for slim kiosk enclosures and panel installations.
Three Paper Roll Positions
Standard, top and bottom roll positions let integrators route paper according to the kiosk layout — no need to redesign the chassis around the printer.
Fast, Reliable Printing
150 mm/sec direct-thermal speed at 203 dpi (576 dots across a 72 mm print width) keeps customer queues moving during peak periods.
Dual USB + Serial Interface
RS-232C Serial and USB 2.0 cover both legacy kiosk controllers and modern PC / SBC hosts, with ESC/POS-class command support for easy software integration.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
Choose the SK4-31 if you are integrating a printer into a kiosk or self-service unit and need an 80 mm receipt or ticket at an entry-level price, with the flexibility of three paper roll positions. If you instead need a standalone counter receipt printer for a manned POS, consider a Star TSP143IV or mC-Print3 — they ship as desktop units with their own case and power supply. For larger 112 mm ticket stock or higher-volume kiosks, look at the Sanei SK1-41 series.
Buyer's Guide
Buy it if
You are building or maintaining a kiosk, ticketing or self-service terminal that needs 80 mm receipts at 150 mm/sec with a robust 1,000,000-cut autocutter and flexible paper-roll routing.
Skip it if
You want a plug-and-play counter receipt printer with its own enclosure, power brick and Ethernet — the SK4-31 is an open-frame engine that requires a 24 V PSU, bezel and integration work.
Also consider
Sanei SK4-21 (58 mm version of this engine) for narrower receipts, or Sanei SK1-41 / Star SK5 series for larger paper, higher volume or built-in presenter / 12-position roll holder.
Features - STAR MICRONICS EUROP - 37968551
Colour
black
Interface
- USB2.0
More Details
Product Code
CE71839
EAN Code
4951319285342
Manufacturer
STAR MICRONICS EUROP