Epson TM-M30III (C31CK50112A0) Thermal POS Receipt Printer – 80mm, 300mm/s, USB & LAN Interface, Compact mPOS Design

The Epson TM-M30III model C31CK50112A0 is part of Epson’s mPOS / compact thermal printer line, designed for modern retail, hospitality, and mobile POS environments. Its sleek form factor and multiple interface capabilities make it suitable for counter or integrated tablet setups.

Connectivity & Interfaces

This variant includes USB (Type B, USB-A / hub) and Ethernet (LAN / wired network) as standard interfaces, enabling broad compatibility with POS systems. The printer also supports network tethering (via wired Ethernet) at 20 Mbps, so a connected tablet or device can share network access over the printer.  USB Type-C (PD) is included for power / tablet charge functionality (up to 18 W) in supported configurations. 

Printing Specifications & Media

• Resolution: 203 × 203 dpi (8 dots/mm) 

• Max print speed: 300 mm/s (depending on firmware / model variant) 

• Supported widths: 58 mm and 80 mm rolls (with spacer) 

• Max roll diameter: 83 mm 

• Paper ejection orientation: Configurable for top or front exit, depending on installation context 

Durability & Special Features

• IPX2 rated enclosure for resistance to water droplets / splashes 

• Antibacterial surface treatment helps with hygiene in hospitality / food environments 

• De-curl mechanism ensures receipts exit flat, improving barcode scanning compatibility and readability. 

• Paper near-end detection works in both front and top feed positions to minimize downtime. 

Software & Integration

The TM-M30III supports EPOS-Print (XML) and Server Direct Print for cloud / web application printing without a local driver. It also supports typical POS command sets (ESC/POS) and works with Epson’s SDKs and configuration tools. 

Use Cases & Suitability

• Tablet-based POS setups where minimal cabling and a small footprint are essential

• Retail counters, restaurant terminals, kiosks, mobile POS

• Environments requiring hygienic surfaces or occasional exposure to spills

• Systems where network sharing or tethering functionality is beneficial