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Brother Support
support.brother.com › g › b › downloadlist.aspx
Downloads | MFC-L3780CDW | United States | Brother
MFC-L3780CDW · Downloads · Downloads · Contact Us · Product Registration · Visit www.brother-usa.com · Windows 11 · Windows 10 (32-bit) Windows 10 (64-bit) Windows Server 2025 · Windows Server 2022 · Windows Server 2019 · 日本語 · اللغة العربية ·
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Brother Support
support.brother.com › g › b › downloadtop.aspx
Downloads | MFC-L3780CDW | Canada | Brother
MFC-L3780CDW · Depending on your web browser, your OS Family and Version may already be selected. Windows · Mac · Linux · Mobile · Windows 11 · Windows Server 2019 · Windows 10 (32-bit) Windows Server 2016 · Windows 10 (64-bit) Windows Server 2012 R2 (64-bit) Windows Server 2025 ·
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Reddit
reddit.com › r/printers › drivers for brother mfc-l3780cdw
r/printers on Reddit: Drivers for Brother MFC-L3780CDW
March 8, 2025 -

I just tried installing a brand new Brother MFC-L3780CDW all in one laser printer and I ran the EasySetup_2_7_0_5.exe software. Computer OS is Windows 10 64 bit with all OS updates. I have the printer connected through a USB cable and I have the WiFi setup. Of course I'm running into problems! Printers have always given me problems but after a 5 year hiatus I thought I'd try again.

In the Brother iPrint&Scan software the printer shows up under Network and is selected but the Print icon has a yellow exclamation mark error and when I click on it, I get a Printer Driver Required error.

It also shows up under USB but when I try to select it, I get an error that the driver setup is required and to install the driver. I want the USB as a backup option if the WiFi is down.

Any idea why it says the driver is missing when I just did the driver install?

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Reddit
reddit.com › r/printers › re: brother laser mfc-l3780cdw
r/printers on Reddit: RE: Brother Laser MFC-L3780CDW
March 3, 2025 -

What's going on?

based upon recommendations on reddit, we replaced our inkjet with a laser from brother. just arrived...and it only works with win10 or 11?! we're still on 7 and have no wish to 'upgrade' (with a clusterfuck). does anyone know a workaround, so this printer works on win7? thanks!

QuestionsAnswers
Printer model:Brother Laser MFC-L3780CDW
Print Frequency:sometimes a few times per week, with the very occasional print job of 100 pages.
Firmware version:the printer is brand new out of the box, so whatever it ships with.
Connection:Ethernet
Current OS:Win7

of Machines Tried: | not applicable

of Users Tried: | nothing done yet because of the win version issue.

Applications Tried: | not applicable. just came straight to reddit. Error Messages: | not applicable Cartridges Used: | oem cartridge with printer, but it's not even set up yet because of the win7 issue..

What steps you have already tried?

  • Step 1 ASK REDDIT

  • Step 2 Wait to see what redditors say

Pictures: haven't printed anything yet.

Top answer
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Try this for a compatibility matrix. It's well hidden. https://www.brother-usa.com/-/media/brother/product-catalog-media/documents/2023/10/17/20/49/mfc-l3780cdw-system-requirements-chart.pdf Also, note that it can be used as a generic PCL printer and responds to a lot of things if it is connected to your home/business network: APIPA (Auto IP), ARP, BOOTP, CIFS Client, Custom Raw Port/Port 9100, DHCP, DNS Resolver, FTP Client and Server, HTTP/HTTPS Server, ICMP, IMAP4, IPP/IPPS, LDAP, LLMNR Responder, LPR/LPD, mDNS, POP3, RARP, SMTP Client, SNMPv1/v2c/v3, SNTP Client, TELNET Server, TFTP Client and Server, Web Services (Print/Scan), WINS/NetBIOS Name Resolution (Linux LPR on port 9100, hint, hint, is pretty much OS-agnostic) As for a "driver," I hope you are the actual tech support for this home/biz. Because it is very easy to use emulation like printers have done since the 1990s at least. BR-Script3‡, PCL5c, PCL5e, PCL6 (PCL XL Class 3.0), PDF Version 1.7, XPS Version 1.0 That's a no-brainer as well, so Windows 7 should be easy to implement. The fact you're asking this question means that it might not be or you needed a refresher. Using this comment and Google and you should be up and running in 15 to 30 minutes or so. See https://www.brother-usa.com/products/mfcl3780cdw for where I found this out. Also, I just installed mine a few minutes ago. Excited to try it out!
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Did you not look up the system requirements before purchasing? Not sure why you would assume this would "just work." No way the driver will run on 7.
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Brother
brother-usa.com › support › mfcl3780cdw
Brother MFCL3780CDW Support
Find official Brother MFCL3780CDW FAQs, videos, manuals, drivers and downloads here. Get the answers, technical support, and contact options you are looking for.
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Brother
help.brother-usa.com › app › answers › detail › a_id › 59628 › ~ › add-a-printer-driver---windows-7
Add a printer driver - Windows 7
1. Download the Printer Driver or Add Printer Wizard Driver from https://support.brother.com. Click here for instructions on how to navigate to our downloads page. 2. Once the driver has been downloaded, you will need to extract it · How to extract the printer driver
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Treexy
treexy.com › products › driver-fusion › database › imaging-and-cameras › brother › mfc-l3780cdw
Download Brother MFC-L3780CDW Imaging and Camera Drivers for Windows 11, 10, 8.1, 8, or 7 - 64-bit and 32-bit - Treexy
MFC-L3780CDW · Brother · Imaging or camera · USB\VID_04F9&PID_0500&MI_01 VID_04F9&PID_0500&NETSCN Show all  Automatically update and back up drivers · Learn more Download now · All · Windows 11 · Windows 10 · Windows 8.1 · Windows 8 · Windows 7 ·
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YouTube
youtube.com › watch
Install MFCL3780CDW with USB - Windows - YouTube
Learn how to set up your Brother MFC-L3780CDW, MFC-L3765CDW, MFC- L3720CDW or MFC-L8395CDW color laser printer with a USB connection in this tutorial.Models ...
Published   January 9, 2024
Find elsewhere
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Brother
brother-usa.com › - › media › brother › product-catalog-media › documents › 2023 › 10 › 17 › 20 › 49 › mfc-l3780cdw-system-requirements-chart.pdf pdf
MFC-L3780CDW System Requirements USB 5 10Base-T, 100Base-T, 1000Base-T
MFC-L3780CDW System Requirements · USB 5 · 10Base-T, 100Base-T, 1000Base-T · (Ethernet) Wireless · 802.11b/g/n, 802.11a/n · For Drivers · For Applications · (including Drivers) Windows 10 Home / 10 Pro / 10 Education / 10 Enterprise 3 · 4 · 32-bit (x86) or ·
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JustAnswer
justanswer.com › printers › sbg0y-cannot-scanner-scan-pages-it-will-not.html
Fixing Scan Issues on MFC-L3780CDW: Expert Q&A
If the scanner isn’t recognized, ensure the USB cable is connected to the correct USB port, not the Ethernet slot. Install the latest Brother drivers and scanning software from the official website. Check Windows Device Manager for driver ...
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Hamrick
hamrick.com › all scanner drivers › brother scanner drivers › brother mfc-l3780cdw
Brother MFC-L3780CDW Scanner Driver and Software | VueScan
We reverse engineered the Brother MFC-L3780CDW driver and included it in VueScan so you can keep using your old scanner. Download VueScan for Windows Download VueScan Download VueScan for other operating systems or older versions
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Brother Canada
support.brother.ca › app › answers › detail › a_id › 133267 › ~ › add-a-printer-driver---windows-7
Add a printer driver - Windows 7 - Brother Canada
4. Click Have Disk. 5. Click Browse and specify the location of the drivers that you extracted in step 2. 6. Click Open. 7. Click OK. 8. Select your model name and then click Next. 9. If you receive a message stating that a driver is already installed, select Replace The Current Driver and then click Next.
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Linux Mint Forums
forums.linuxmint.com › board index › main edition support › hardware support › printers & scanners
Brother Printer/Scanner MFC-L3780CDW Why Do You Think It Asks For The IP Address? - Linux Mint Forums
Link to the driver: (I used Driver Install Tool) https://support.brother.com/g/b/downloa ... _as&os=128 Instructions: https://support.brother.com/g/b/downloa ... table=true I took out of the "License Agreements" so that you don't need to read that in the code. ... sudo bash linux-brprinter-installer-2.2.3-1 MFC-L3780CDW [sudo] password for gregory: You are going to install following packages.
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Outbyte
outbyte.com › home › driver database › printers › brother › brother mfc-l3780cdw series
Download Brother MFC-L3780CDW series drivers
September 30, 2025 - Download Printer drivers for Windows, that can help resolve Brother MFC-L3780CDW series PC issues. Check and update all PC drivers for Windows 11, 10, 8.1, 8, and 7 (32-bit/64-bit)
Top answer
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Your port settings are likely an issue or you have another network-related issue. The printer should have an IP address. If you have it set to auto, you might consider setting it to a static rather than relying on the Brother software to auto sense the printer. Even if you do not do this, you should be able to ping its current address which should be available from the printer's console. If you cannot do this you will need to look into your network/firewall connectivity issue. If you can do this then you know the problem computer can communicate over the network to it. Try creating a new network port carrying the current IP address (why I recommend a static so it does not change) and running through the wizard to manually create a new printer instance using the second method.

If the address is 192.168.1.50.

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To add and clarify:

If I go via WIN+r and "printui /s /t2" into Print Server Properties and the "Drivers" tab, I can select "Add..." there.

In the Add Printer Driver Wizard that comes up there are no Brother printers listed. When I press "Windows Update" it takes a few minutes and then I get a much longer list of printer manufactures and many models, but my model Brother MFC-L3770CDW is still strangely omitted from that list, so I can't select a driver for it.

When I do the exact same from my laptop that runs on Windows 10 2004 (instead of my PC on Windows 10 20H2) already the automatic menu shows my printer model as an option. And logically from that laptop I can print without issues.

I really need to get this fixed on the PC, so any help is greatly appreciated.

Thanks.

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Brother
brother-usa.com › products › mfcl3780cdw
MFC-L3780CDW | PrintersAIOs | PrintersAIOsFaxMachines | By Brother
Safeguard sensitive information with advanced security features, including the added protection of an NFC card reader for badge authentication. Engineered and supported by Brother, the MFC-L3780CDW is a hard-working and effective addition to any small workspace.