This document introduces the features and performance indicators of the SP-RMDIIIB micro thermal printer, including thermal printing method, built-in single-chip processor, ability to print various dot matrix characters and Chinese characters, and self-diagnosis function.
The SP RMDIIIB is a compact, lightweight thermal printer designed for medical, fire‑alarm, industrial control and other instrumentation. It supports 9×24, 12×24, 16×24 and 24×24 dot matrix characters, 24×24 dot Chinese characters, graphics and symbols. The printer includes an integrated microcontroller, parallel (Centronics‑compatible) and serial (RS‑232/TTL) interfaces, and a Windows driver for direct PC printing.
The manual provides a full product introduction, detailed specifications, step‑by‑step installation, interface wiring, parameter settings via software or button combinations, a complete list of printing commands, and guidelines for routine maintenance and Windows usage. This manual is written in Chinese.
| Paper width | 57.5 ± 0.5 mm |
|---|---|
| Power supply | 5 V, 2 A average |
| Operating temperature | 0 °C – 50 °C |
| Interface options | Parallel (Centronics‑compatible) or Serial (RS‑232/TTL) |
| Receive buffer | 32 KB |
| Resolution | 8 dots/mm, 384 dots/line |
It uses thermal paper that is 57.5 ± 0.5 mm wide.
The printer requires a 5 V input with an average current of 2 A.
It can be connected via a parallel Centronics‑compatible interface (IDC26 connector) or a serial RS‑232/TTL interface (IDC10 connector).
Speed (1‑4) and concentration (1‑8) can be set either through the MP SetTools software or by using the SEL and LF button combinations on the printer.