Shenzhen Xin Hua Han MD68xx Barcode Scanner Quick Start Guide

About this manual

This quick guide explains how to connect the MD68xx barcode scanner using RS232, USB, or keyboard cables. It covers basic operation, factory settings, and cleaning instructions. For detailed setup, refer to the full user manual. The scanner operates on 5V and supports Chinese barcode display via RS232 serial communication. This manual is written in Chinese.

What's inside

• Connection Methods
• Operation Instructions
• Factory Settings
• Version Information
• Parameter Setup
• Cleaning Instructions
• Mounting Bracket Installation

Frequently asked questions

How do I connect the scanner using USB?

Set the 'USB Device Type' to 'USB Virtual Serial Port'.

What is the operating voltage of the scanner?

The scanner operates on 5V.

What is the optimal reading distance?

The optimal reading distance is 5-7cm, regardless of barcode density.