1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Symcode MJ-4590L USB 1D Wired Barcode Scanner with Auto-Sensing Stand. This device is designed for accurate and efficient 1D barcode data capture, suitable for various business applications requiring reliable scanning performance.
2. Package Contents
Please verify that all items are present in your package:
- Symcode MJ-4590L Barcode Scanner
- Gooseneck Stand
- USB Cable (for power and data)
- User Manual (this document)
3. Product Overview
The Symcode MJ-4590L is a handheld wired laser barcode scanner featuring an ergonomic design and a durable construction. It includes an auto-sensing stand for hands-free operation, enhancing efficiency in various environments.

Image 1: The Symcode MJ-4590L barcode scanner securely placed on its gooseneck stand, ready for use.

Image 2: Illustration of barcode programmability, showing how prefixes and suffixes can be added to scanned data (e.g., RL123456789, 12345RL6789, 123456789RL). This feature allows for data customization to fit specific system requirements.

Image 3: Demonstrates the anti-shock design, indicating the scanner's durability against drops from up to 1.5 meters.
4. Setup
- Assemble the Stand: Attach the gooseneck arm to the base and then secure the scanner holder to the top of the gooseneck.
- Connect the USB Cable: Insert the small end of the USB cable into the port on the scanner. Connect the standard USB-A end of the cable to an available USB port on your computer (Desktop, Laptop).
- Driver Installation: The scanner is typically plug-and-play. Your operating system (Windows, macOS, Linux) should automatically detect and install the necessary drivers. No additional software installation is usually required.
- Initial Test: Open a text editor or spreadsheet program on your computer. Scan any 1D barcode. The barcode data should appear in the open application.

Image 4: Close-up of the USB cable connecting the scanner to a laptop, illustrating the wired connection method.

Image 5: Visual representation of the scanner's compatibility with iOS, Android, Windows, Mac OS, and Linux operating systems, as well as devices like Cash Registers, PCs, and Laptops.
5. Operating Instructions
5.1 Scanning Modes
The Symcode MJ-4590L supports three primary scanning modes:
- Key Trigger Mode: Press the trigger button to activate the laser and scan a barcode. Release the button to deactivate.
- Auto-Induction Mode: When placed on the stand, the scanner automatically detects a barcode presented within its scanning field and activates the laser to read it without requiring a trigger press.
- Continuous Mode: The laser remains continuously active, scanning any barcode that passes through its field. This mode is useful for high-volume scanning operations.
5.2 Configuration Options
The scanner offers over 180 configuration options, allowing customization to suit specific needs. These options are typically set by scanning special configuration barcodes found in the comprehensive user manual provided with the product. Common configurations include:
- Adding Prefix/Suffix: Append specific characters or strings before or after the scanned barcode data.
- Deleting Characters: Remove starting or ending characters from the scanned data.
- Keyboard Keys/Combinations: Integrate keyboard functions into the scanning operation.
- Volume Adjustment: Control the sound feedback of the scanner.

Image 6: A user scanning a shipping label on a package using the handheld mode of the Symcode barcode scanner, demonstrating practical application.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the scanner's exterior. For the scanning window, use a soft, lint-free cloth lightly dampened with a mild glass cleaner. Avoid abrasive materials or harsh chemicals.
- Storage: Store the scanner in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or twisting the USB cable excessively to prevent internal damage.
7. Troubleshooting
- Scanner Not Reading Barcodes:
- Ensure the USB cable is securely connected to both the scanner and the computer.
- Verify that the barcode is a 1D type and is not damaged, smudged, or poorly printed.
- Check the distance and angle of the scanner to the barcode.
- Confirm that the correct scanning mode is active (e.g., trigger pressed in key trigger mode).
- No Data Output to Computer:
- Ensure the scanner is properly connected and recognized by the operating system.
- Test with a different USB port on your computer.
- Try scanning into a different application (e.g., Notepad, Word) to rule out software conflicts.
- Scanner Beeps but No Data:
- This often indicates a successful scan but an issue with data transmission or interpretation. Check your application settings or scanner configuration for prefix/suffix issues.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | MJ-4590L |
| Input Voltage | DC5V±0.25V |
| Current | 25 mA (work); 95 mA (instantaneous) |
| Decoding Speed | 100 times / sec |
| Item Weight | 1.01 pounds |
| Package Dimensions | 7.52 x 5.87 x 4.06 inches |
| Connectivity Technology | USB Cable |
| Compatible Devices | Desktop, Laptop |
| Supported Barcode Types | UPC/EAN, UPC/EAN with Supplemental, UCC/EAN 128, Code 39, Code 39 Full ASCII, Trioptic Code 39, Code 128 Full ASCII, Codabar, Interleaved 2 of 5, Discrete 2 of 5, Code 93, MSI, Code 11, RSS variants, Chinese 2 of 5, and extended ASCII support for Code 128 barcodes. |
| Operating System Compatibility | Windows, Mac, Linux |
| Internal Storage | Up to 10,000 codes (for inventory mode, if applicable) |
| Batteries | 1 Lithium Polymer battery required (internal power source) |
9. Warranty and Support
Symcode products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact details provided on the Symcode official website or contact your retailer. Please retain your proof of purchase for warranty claims.







