mPOS Receipt Printer Star Micronics MCP31CI WT 400mm/s USB-C Ethernet

The Star Micronics mC-Print3 MCP31CI WT is a compact, high-speed thermal receipt printer designed for modern mPOS and tablet-based point of sale systems. It supports 58mm and 80mm paper widths and prints at up to 400 mm/second. The unit features USB-C with 20W Power Delivery for direct connection and charging of iOS, Android and Windows tablets, plus Ethernet LAN, a USB-A peripheral hub and optional WLAN. Built-in CloudPRNT Next technology enables direct printing from web shops, ordering platforms and progressive web applications. The housing is IP22 splash and dust resistant and includes paper near-end and cover-open sensors for reliable operation.

Advantages

The MCP31CI offers very fast printing speeds (up to 400 mm/s) in a super-compact footprint, with USB-C Power Delivery for tablet connectivity and charging. Integrated Ethernet with SteadyLAN and an onboard USB-A hub simplify wired integrations, while optional WLAN and Bluetooth (in other variants) extend connectivity. CloudPRNT Next is included for secure, direct cloud printing from online ordering and omnichannel services. IP22-rated housing and paper sensors reduce downtime and support kiosk and counter installations.

Suitable for

• Retail and mPOS checkout counters
• Hospitality environments — restaurants, cafés and bars
• Self-service kiosks and ordering terminals
• Online order fulfilment and click-and-collect counters

Key specifications

• Print method: Thermal
• Max print speed: 400 mm/second
• Paper widths supported: 58 mm, 80 mm
• Interfaces: USB-C (20W Power Delivery), Ethernet LAN, USB-A hub (integral)
• Wireless: Optional WLAN (model dependent); Bluetooth available in MCP31CBI variant
• Cloud printing: Star CloudPRNT Next built-in
• Environmental protection: IP22 splash/dust resistant housing
• Sensors: Paper near-end, cover open detection
• Color: White (WT model)

How to use

Install the printer on a stable counter or integrate it into a kiosk enclosure. Load thermal paper (58 mm or 80 mm) following the top-loading mechanism and close the cover; the cover-open sensor will confirm correct placement. Connect a tablet or POS device via the USB-C port to enable direct printing and charging, or use Ethernet for networked setups. Configure CloudPRNT Next and any required drivers or web-app settings according to your POS or ordering platform documentation. Use the paper near-end sensor to monitor roll status and replace rolls before they run out to avoid interrupted receipts.

Recommendations

For reliable performance, use manufacturer-recommended thermal paper of the correct width and thickness, keep the printer in environments protected from direct exposure to heavy splashes, and ensure firmware and CloudPRNT settings are kept up to date to maintain compatibility with web-based ordering systems.