Our complete review of the Brother MFC-L3770CDW printer: tested performance and features

The Brother MFC-L3770CDW is a 4-in-1 multifunction color LED printer designed for small offices and freelancers. It combines printing, copying, scanning, and faxing in a compact format, with a claimed speed of 24 pages per minute in both monochrome and color and a resolution of 2,400 dpi.

Color LED technology and A9 Cortex processor: what’s under the hood

The MFC-L3770CDW uses LED technology, sometimes confused with traditional laser. The difference lies in the light source: a bar of diodes replaces the rotating laser beam, which reduces the number of moving parts and contributes to quieter operation.

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The ARM A9 Cortex processor paired with 512 MB of memory manages the simultaneous processing of multiple tasks. In practice, starting a scan while a document is printing does not cause any noticeable slowdown. This type of hardware configuration remains common in office multifunction devices, but multitasking fluidity is well executed here.

For those considering this purchase, the review of the Brother MFC-L3770CDW details real throughput measurements and print quality on various types of paper.

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Close-up of the touchscreen of the Brother MFC-L3770CDW printer with a hand navigating the setup menu

Duplex scanning and NFC connectivity: features that divide

The duplex automatic document feeder (ADF) accepts 50 sheets. This is a strong point for scanning multipage documents without manual intervention. Scanning to a network folder or an email address works natively.

A detailed user experience report published on objetsconnectes.be raises a recurring issue: managing A4 format during scanning can sometimes be problematic, with cropped margins or inaccurate cropping. This defect, reported by several users, deserves verification before relying on the scanner for official documents.

In terms of connectivity, the machine offers:

  • Wi-Fi 802.11 b/g/n for wireless integration into the local network
  • USB 2.0 and Ethernet for wired connections, which are more stable in a professional environment
  • Built-in NFC, allowing printing from a compatible smartphone by simply touching the device
  • Compatibility with Windows, macOS, and mobile printing via AirPrint, Google Cloud Print, and the Brother iPrint&Scan app

NFC remains a gadget for many users. Mobile printing via direct Wi-Fi serves the same function without requiring an NFC chip on the phone.

Cost per page and toner: the real calculation to make

The purchase price of a laser printer represents only a fraction of the total budget. For the MFC-L3770CDW, the toner cartridges (black, cyan, magenta, yellow) are independent, which avoids replacing a complete unit when only one color is depleted.

Brother offers standard and high-capacity toners. The price difference between the two is not proportional to the number of pages printed: high-capacity toners significantly reduce the cost per page. For regular color use, this option is essential.

A main tray of 250 sheets complemented by a 30-sheet multipurpose tray covers common needs. The lack of an optional additional tray limits the machine for volumes exceeding a few hundred pages per week.

Noise level in operation

Brother emphasizes the quietness of this multifunction device. During printing, the noise remains discreet compared to older color lasers. In a shared office, the noise nuisance does not pose any particular problem, even if the fuser’s warm-up phases are audible in a very quiet environment.

Professional woman retrieving printed documents from a Brother MFC-L3770CDW printer in a modern open space

Brother MFC-L3770CDW in 2025: a model at the end of its life

The specialized site Druckerchannel lists the MFC-L3770CDW as a model at the end of its commercial life (EOL). Brother is now directing its range towards direct successors: the MFC-L3780CDW and the MFC-L8390CDW.

The MFC-L3780CDW boasts a speed of 31 pages per minute and advanced security features. The MFC-L8390CDW reaches 30 pages per minute in ISO speed, with a more recent architecture. Both models incorporate improvements in paper handling and connectivity that the L3770CDW will no longer receive through firmware updates.

Buying a new MFC-L3770CDW today means choosing a model whose software support and availability of consumables will decline. In the second-hand market, the offer remains interesting as long as the condition of the drum and the page counter are checked.

Is it still worth buying second-hand?

For home or semi-professional use at moderate volume, a well-maintained second-hand MFC-L3770CDW fulfills its role. Points to check before purchase:

  • The total printed page counter, accessible in the diagnostic menus
  • The condition of the drum unit, a wear part whose replacement costs as much as a high-capacity toner
  • The installed firmware version, which determines compatibility with recent operating systems

The color print quality at 2,400 dpi remains quite acceptable for office documents, presentations, or invoices. Photographers and graphic designers will look elsewhere, but that was not the target audience for this machine.

The MFC-L3770CDW has occupied the top tier of affordable color LED multifunction devices for several years. Its replacement by faster models with better security features does not render it obsolete, but gradually reduces the appeal of a new purchase compared to the new Brother generation.

Our complete review of the Brother MFC-L3770CDW printer: tested performance and features