Star Micronics SK4-31 Kiosk Printer (37968551) | 3-Inch, Entry-Level, USB/Serial
The Star Micronics SK4-31SF-M-ST Kiosk Printer (Part #37968551) is a compact, cost-effective, open-frame thermal printer mechanism designed for integration into self-service kiosks, vending, and ticketing applications where 3-inch printing is required. This model delivers an excellent balance of performance and cost, making it an ideal choice for businesses transitioning to unattended terminals.
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3-Inch Media Support: Prints standard 80mm receipts, tickets, and vouchers, making it versatile for various applications including information reports and detailed receipts.
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Entry-Level Speed: Delivers reliable output at up to 150 mm/second with clear 203 dpi resolution, providing quick transactions for non-high-traffic terminals.
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Dual Interface Standard: Includes both Serial (RS-232C) and USB 2.0 interfaces, offering essential connectivity for integration with common industrial and kiosk controllers.
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Compact Open Frame: Features a low-profile, lightweight design optimized for minimal internal footprint within the kiosk enclosure.
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High Reliability: Engineered for dependable unattended operation, featuring a reliable guillotine auto-cutter rated for 1 million cuts and a durable print head rated for 100km.
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Media Sensing: Includes Paper Near End Sensor and a Black Mark Sensor, enabling the printer to accurately print on fixed-length media, tickets, and labels.
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Flexible Mounting: Supports multiple paper roll positions (Rear, Top, Bottom) for easier integration into various kiosk designs (specific guides may be required).
| Detail | Specification |
| Manufacturer | Star Micronics (Sanei SK4 Series) |
| Part Number (MPN) | 37968551 |
| Model Name | SK4-31SF-M-ST |
| Print Technology | Direct Thermal |
| Print Speed | Max 150 mm/sec |
| Resolution | 203 dpi (8 dots/mm) |
| Interfaces | Serial (RS-232C), USB 2.0 |
| Paper Width | 80 mm (3.15") |
| Max Print Width | 72 mm (2.83") |
| Cutter Life | 1 Million Cuts |
| Max Roll Diameter | 83 mm (Supports up to 120mm with optional holder) |
| Power Requirement | Requires an External 24V DC Power Supply (Sold separately) |