This dot matrix printer solution uses AX1001 single-chip microcomputer as the core control unit. It has a 100M instruction execution speed, 88 I/O ports, and 256×8Byte data memory. It is very suitable for application in a single CPU structure scheme. Only one AX1001 is required to complete the control task of the whole machine.
This document presents a complete design solution for a needle (dot‑matrix) printer based on the AX1001 microcontroller. It describes the system architecture, hardware components such as the 24‑pin print head, stepper motors, and interface circuits, and outlines the software modules required for real‑time control.
The guide includes detailed schematics for the main controller, system bus, motor drivers, print‑head driver, parallel port interface, and status detection circuits, as well as a flowchart of the microcontroller firmware and conclusions on performance and cost. This manual is written in Chinese.
| Instruction execution speed | 100 MIPS |
|---|---|
| I/O ports | 88 |
| Data memory | 256 × 8 Byte |
| Program memory | 16 KB |
| Instruction memory | 8 KB |
| Data storage | 2 KB |
| Maximum operating speed | 48 MHz |
| Print head type | 24‑pin EPSCN1600K |
| USB power provision | +5 V from USB |
The design uses the AX1001 microcontroller as the core controller.
The AX1001 provides 88 I/O ports.
The paper feed is driven by a four‑phase stepper motor.
A 24‑pin EPSCN1600K print head is used.