Multifunctional device Brother DCP-L2520DWR It's deservedly considered one of the most reliable models in its class, offering users high-quality printing and the convenience of wireless connectivity. However, while printer installation is typically automatic or requires minimal intervention, network scanning often poses challenges even for experienced users. The problem stems not from the lack of functionality, but from the specific logic of the drivers and software, which require proper initial configuration for stable operation on a local network.
Unlike printing, where the device simply receives a data stream, scanning over Wi-Fi requires two-way communication and proper permissions in the operating system's firewall. Many users encounter a situation where the printer is visible on the network, but the "Scan" button in their apps is grayed out or returns a connection error. The key point here is the understanding that for the scanner to work over the network, it is not enough to simply install the print driver - it is necessary to install a complete package of utilities, including ControlCenter4 and network components.
In this article, we'll cover all setup steps in detail, from checking the physical connection to fine-tuning security settings. You'll learn how to avoid common mistakes, why antivirus software might block the scanner, and what alternative methods exist for mobile devices. Proper setup TWAIN or WIA protocol will provide you with fast work with documents without having to connect a USB cable every time.
Preparing equipment and checking network connection
Before you begin installing the software, you need to make sure that the MFP itself is correctly connected to your wireless network. The device Brother DCP-L2520DWR supports standards Wi-Fi 802.11b/g/n, which ensures sufficient speed for transferring scanned images. If your printer already supports network printing, you can skip this step, but it's worth checking.
First, make sure the wireless indicator on the control panel is solid and not blinking. A blinking indicator indicates a connection is in progress or there are signal issues. The router's location also plays a role: a weak signal can result in slow scanning speeds and an unstable connection.
- 📶 Check that the Wi-Fi indicator on the MFP panel is constantly lit.
- 📡 Make sure your computer and printer are on the same subnet (e.g. 192.168.1.x).
- 🔌 Disable VPN services during setup, as they can mask your local address.
- 🖥️ Find out your printer's IP address by printing a network configuration report.
⚠️ Note: If you're using a guest Wi-Fi network, network scanning won't work due to client isolation. Connect devices only to the main network.
To get a network configuration report, click the button Menu on the device panel, go to the section Network -> WLAN -> Print ReportIn the received document, find the line IP Address — We will need these numbers later to manually configure the drivers if the automatic search does not work.
Installing a complete package of drivers and utilities
The most common mistake is trying to use a driver that Windows installed automatically through Updates. Such drivers often provide only basic printing functionality, ignoring network scanning capabilities. For full functionality Brother DCP-L2520DWR You need to download the full package of drivers and software from the manufacturer's official website.
When downloading, select your operating system and download the file named "Full Driver & Software Package." During the installation process, it's important to select the connection type. Wireless Network connection, even if the device is already connected to Wi-Fi. This will allow the installer to find the printer on the network and register the necessary network ports.
☑️ Installation Checklist
During installation, the wizard may prompt you to select components. Be sure to check the boxes for scanning-related options: Brother ControlCenter4, ScanSoft PaperPort (if offered) and network utilities. Without component ControlCenter Control of scanning from the computer will be limited or impossible.
If the installer can't find the device on the network, it will prompt you to enter the IP address manually. Use the information from the report we printed earlier. After installation is complete, be sure to restart your computer to ensure all network services initialize correctly.
Setting up scanning via ControlCenter4
The main tool for managing scanning in the Windows environment is the utility Brother ControlCenter4After installation, it appears in the system tray (near the clock) and on the desktop. This interface is used to configure profiles, select the resolution, and choose the file format for saving files.
When you first launch the program, you may be prompted to select an operating mode. For network use, the "Online" mode is most convenient. Advanced Mode (Advanced mode), which provides access to all device settings. In Basic mode, some features may be hidden, making it difficult to diagnose problems.
| Parameter | Recommended value | Description |
|---|---|---|
| File Type | PDF (Multi-page) | The best format for documents, combines pages into one file. |
| Resolution | 200 dpi | Optimal for text. For photos, choose 300-600 dpi. |
| Scan Type | Black & White | For text, Color increases the file size by 3 times. |
| Destination | Folder / Email | Folder on PC or sending by email. |
To create a quick scan profile, go to the tab Scan and select FileIn the window that opens, configure the quality settings and destination folder. After saving, you can start scanning with a single button in the program interface, and the device will automatically transfer the data via Wi-Fi.
Why is scanning slow?
Wi-Fi scanning speed directly depends on signal quality and channel congestion. Using the 2.4 GHz band in apartment buildings can cause interference. If possible, configure a static IP address for the printer in your router to avoid searching for the device each time you start a scan.
It is important to note that ControlCenter4 It also allows you to set up scanning directly from the printer's control panel (the Scan to PC function). To do this, click the Scan to PC button in the program. Device Settings -> Scan Settings -> Scan to PC Settings and turn on the "Enable" function.
Troubleshooting Firewall and Antivirus Issues
It often happens that everything is configured correctly, but a connection error or timeout occurs when attempting to scan. In 90% of cases, the culprit is the built-in Windows firewall or a third-party antivirus, which blocks the incoming connection from the scanner.
When installing drivers, Windows usually prompts you to allow access for Brother applications. If you accidentally click "Cancel" or "Block," scanning will not work. You must manually add an exception in the security settings.
- 🛡️ Open Windows Defender Firewall through Control Panel.
- 📂 Select "Allow interaction with the app".
- ✅ Find in the list Brother ControlCenter4 And BrScUtil and make sure that the boxes for private and public networks are checked.
- 🔒 If you use a third-party antivirus (Kaspersky, ESET, Dr.Web), check its blocking log.
⚠️ Note: Antivirus software interfaces are frequently updated. If you can't find the setting, try temporarily disabling network protection (for 5 minutes) and test the scan. If that works, look for the blocking rule in your antivirus's firewall settings.
It's also worth checking out the service Windows Image Acquisition (WIA). Click Win + R, enter services.msc and find this service in the list. It must be running and set to "Automatic." Without this service, the operating system will not be able to correctly process images from the scanner.
Scanning to mobile devices (Android and iOS)
Smartphone and tablet owners can scan documents with Brother DCP-L2520DWR without using a computer. Brother has developed a free app for this purpose. Brother iPrint&Scan, available on Google Play and App Store.
The setup process is simple: install the app and ensure your mobile device is connected to the same Wi-Fi network as the printer. The app will automatically find the device on the local network. The mobile scanning feature allows you to save documents as PDF or JPEG and send them directly to cloud storage services (Google Drive, Dropbox) or via email.
Scan quality via the mobile app depends on the app's settings. It is recommended to select a resolution of at least 200 dpi for text documents, so that the text recognition (OCR) system works correctly if you plan to edit the text later.
If the app doesn't detect the printer, check your router settings. Some modern routers have an "AP Isolation" feature that prevents devices within the network from communicating with each other. This feature must be disabled for printing and scanning from mobile devices to work properly.
Diagnostics and Frequently Asked Questions
Even with proper configuration, intermittent failures may occur. If the scanner is no longer connected to the network, try rebooting the router and MFP in the following sequence: turn off the printer, turn off the router, turn on the router, wait for the Wi-Fi network to fully load, and then turn on the printer. This sequence ensures that the printer receives the correct IP address.
Another common issue is a printer's IP address changing after rebooting the router if a static IP isn't configured. In this case, the driver on the computer continues to access the old address. Solution: assign an IP address to the printer in the router settings (DHCP Reservation) or reconfigure the printer port in Windows to point to the new IP.
Below are answers to the most frequently asked questions from users, which will help you quickly resolve problems without contacting a service center.
Why is scanning slow compared to USB?
Wi-Fi data transfer speed depends on signal quality, distance from the router, and airtime congestion from nearby networks. For large scans (such as books), we recommend using a USB cable or Ethernet connection if the model supports networking (although the DCP-L2520DWR only has Wi-Fi). Also, try reducing the scanning resolution to 150-200 dpi for black-and-white documents.
Is it possible to scan directly to PDF without installing drivers?
Without installing drivers and the ControlCenter4 utility—no. Standard Windows tools may not detect the Brother network scanner. However, if you don't want to install the full driver package, you can try using universal scanning programs, such as NAPS2 (Not Another PDF Scanner 2), which sometimes find the device via the WIA protocol, but will have limited functionality.
What should I do if I get a "No Paper" or "Jam" error message when scanning?
This is a software glitch with the sensors. Turn off the MFP using the power button, open and close the scanner lid, then turn it on again. If the error persists, check for small debris stuck in the scanning line area.
Does scanning work over Wi-Fi Direct?
Model DCP-L2520DWR The printer supports Wi-Fi Direct, but scanning in this mode requires the mobile device or PC to be directly connected to the printer's Wi-Fi network. However, scanning through a regular router is more stable and faster, as Wi-Fi Direct can disrupt the internet connection of the scanning device.