1. Introduction
The DAJA DJ7 is a light and convenient portable laser engraving machine designed for creative DIY projects and professional applications. It offers high precision engraving and cutting capabilities on a variety of materials, controlled via mobile app or computer software. Its compact design makes it suitable for use in multiple scenarios.

Figure 1: DAJA DJ7 Laser Engraver Machine with accessories and engraved samples.
2. Safety Information
Please read and understand all safety instructions before operating the DAJA DJ7 Laser Engraver Machine. Failure to follow these instructions may result in serious injury or damage to the device.
- Wear Protective Goggles: Always wear the provided laser protective goggles during operation to protect your eyes from laser radiation.
- Ventilation: Operate the machine in a well-ventilated area to dissipate fumes and smoke produced during engraving/cutting.
- Flammable Materials: Do not engrave or cut highly flammable materials without proper precautions. Keep a fire extinguisher nearby.
- Supervision: Never leave the machine unattended while it is operating.
- Children and Pets: Keep children and pets away from the machine during operation.
- Power Off: Always turn off and unplug the machine when not in use or during maintenance.
- Material Compatibility: Ensure the material you are working with is safe for laser engraving/cutting. Avoid materials that produce toxic fumes or can reflect the laser dangerously.
3. Package Contents
Verify that all items are present in your package:

Figure 2: Included accessories with the DAJA DJ7.
- DAJA DJ7 Laser Engraver Machine
- Laser Protective Goggles
- Charger (Power Adapter)
- Data Line (USB Type B)
- Bolt Driver (Screwdriver)
- Sample Materials (e.g., 3x Wood Chips, 10x Kraft Paper)
4. Specifications
| Feature | Specification |
|---|---|
| Brand Name | DAJA |
| Model Number | DJ7 |
| Certification | CE |
| Is Smart Device | Yes |
| Origin | Mainland China |
| Laser Power | 5W / 15W (depending on variant) |
| Laser Wavelength | 450-455nm (Semiconductor Blue Laser) |
| Input Voltage | 220W |
| Product Weight | 1.4KG |
| Engraving Accuracy | ≤0.01mm |
| Engraving Area | 150mm x 150mm |
| Operating System Support | Windows, MAC, iOS, Android |
| Supported Formats | JPEG, JPG, PNG, BMP, SVG, DWG |
| Material | ABS + Aluminum alloy |
| Control Method | PWM |
| Interface Specification | Power Port: DC005, Data Port: USB Type B |
| Optimal Focus Range | 30-50mm |
| Max Focus | 100mm |
| Product Dimensions (L x W x H) | 292mm x 92mm x 65mm |
5. Setup
5.1 Physical Setup
- Unpack: Carefully remove all components from the packaging.
- Placement: Place the DAJA DJ7 on a stable, level surface in a well-ventilated area. Ensure there is enough space around the machine for safe operation and material handling.
- Power Connection: Connect the power adapter to the DC005 power port on the machine and then plug it into a suitable power outlet.
- Data Connection: Connect the data line (USB Type B) to the machine and to your computer or mobile device (if using a wired connection).
5.2 Software Installation & Connection
The DAJA DJ7 supports multiple connection methods and operating systems:

Figure 3: Multi-connection mode for computer and mobile phone.
- Mobile App (Wi-Fi/Bluetooth): Download the dedicated DAJA engraving app from your device's app store (iOS/Android). Follow the in-app instructions to connect the machine via Wi-Fi or Bluetooth.
- Computer Software (USB): Install the DAJA engraving software on your Windows or MAC computer. Connect the machine via the provided USB data line. The software allows for diversified graphic creation.
- Offline Engraving: The machine features cloud storage memory for offline engraving. Once a design is uploaded, it can be engraved with a one-click repeat function without continuous connection.
5.3 Focusing the Laser
The optimal focus range is 30-50mm, with a maximum focus of 100mm. Proper focusing is crucial for achieving precise engraving and cutting results. Refer to the software interface for specific focus adjustment procedures, which typically involve adjusting the laser head height relative to the material surface.
6. Operating Instructions
The DAJA DJ7 is designed for ease of use, allowing both beginners and experienced users to create intricate designs.
Video 1: Demonstration of the DAJA DJ7's engraving and cutting capabilities on various materials.
6.1 Preparing Your Design
- Create/Import Design: Use the dedicated software or app to create your design or import an existing image file (JPG, SVG, PNG, DWG, BMP).
- Adjust Parameters: Within the software, set engraving parameters such as power, speed, and passes according to your material and desired effect.
- Preview: Utilize the software's preview function to ensure the design is correctly positioned and scaled. The engraving range is 150mm x 150mm.

Figure 4: The engraving range of the DAJA DJ7 is 15cm x 15cm.
6.2 Material Placement
Place your material securely within the engraving area. The innovative track and bottom hollow design allow for engraving on various objects, even those larger than the machine's base, by positioning them correctly under the laser head.
6.3 Engraving and Cutting
The DAJA DJ7 can engrave and cut a wide range of materials:

Figure 5: Examples of engraving and cutting on multiple materials.
- Engraving: Suitable for wood, leather, paper, food, plastic, ceramics, glass, jewelry, crystal, acrylic, and lacquered metal.
- Cutting: Capable of cutting materials like 0.2mm wood, leather, and paper.
Once the material is in place and parameters are set, initiate the engraving or cutting process from the software/app. Monitor the process closely, ensuring safety goggles are worn.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your DAJA DJ7.
- Cleaning: Regularly clean the laser lens and the engraving area to remove dust and debris. Use a soft, lint-free cloth and appropriate cleaning solutions if necessary.
- Laser Head Care: The built-in fan cooling system helps prolong the laser head's service life. Ensure the fan vents are not obstructed.
- Firmware Updates: Keep the device firmware and software updated to benefit from the latest features and improvements.
8. Troubleshooting
Here are some common issues and their potential solutions:
- Machine Not Responding:
- Check power connection. Ensure the power adapter is securely plugged in.
- Verify data connection (USB cable or Wi-Fi/Bluetooth).
- Restart the machine and the controlling device (computer/phone). - Laser Not Firing/Weak Engraving:
- Ensure the laser is properly focused. Adjust the laser head height.
- Check laser power settings in the software. Increase power if necessary.
- Clean the laser lens if it's dirty.
- Verify material compatibility and recommended settings. - Engraving Quality is Poor/Blurry:
- Adjust the focus of the laser. The DJ7 features a fine laser spot of 0.01mm for clear patterns.
- Ensure the material is stable and not moving during engraving.
- Check engraving speed and power settings; too fast or too powerful can cause issues.
- The newly upgraded laser head uses spot compression and laser fusion technology for finer results. - Connection Issues (Wi-Fi/Bluetooth):
- Ensure the machine is within range of your Wi-Fi network or Bluetooth device.
- Restart the machine and your mobile device.
- Re-pair the device in the app settings. - Software/App Crashes:
- Ensure your software/app is the latest version.
- Check your computer/phone's operating system for updates.
- Close other demanding applications.
9. User Tips
- Start with Sample Materials: Before working on valuable items, practice with the included wood chips and kraft paper to get a feel for the machine and software settings.
- Experiment with Settings: Different materials and desired effects will require varying laser power and speed settings. Keep a log of successful settings for future reference.
- Utilize Offline Engraving: For repetitive tasks, upload your design once and use the offline engraving feature for convenience and consistency.
- Explore Design Options: The software supports various image formats (JPG, SVG, PNG, DWG, BMP), allowing for diverse creative possibilities.
- Consider the Laser Shield: The machine is equipped with a laser shield for multiple protection devices, enhancing safety during carving.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's official website or contact their customer service. Keep your purchase receipt as proof of purchase.