Recommended Free Tools
The Brother MFC-L3780CDW has the higher advertised print speed and larger estimated starter-toner supply. Brother lists it at up to 31 pages per minute, compared with up to 19 ppm for the MFC-L3720CDW. These are manufacturer-published maximums, not independent test results or a guarantee of everyday throughput. The available official specifications establish some useful differences, but not enough to declare one printer the better value or to claim a full feature-by-feature advantage.
Brother MFC-L3780CDW vs. MFC-L3720CDW: key published differences
| Specification | MFC-L3780CDW | MFC-L3720CDW |
|---|---|---|
| Maximum published print speed | Up to 31 ppm, per Brother USA product listing retrieved in 2026; maximum speed, not independently measured. | Up to 19 ppm in both black and color, per Brother USA product listing retrieved in 2026; maximum speed, not independently measured. |
| Starter toner yield | Approximately 2,300 pages for black and 1,200 pages for each color cartridge, according to Brother USA’s listing retrieved in 2026. | Approximately 1,000 pages for each starter cartridge, according to Brother’s product information retrieved in 2026. |
| Listed functions and workflow details | Brother identifies it as a color all-in-one for printing, copying, scanning, and faxing. The listing also specifies duplex printing, scanning, and copying, a 50-sheet ADF, and a 250-sheet main tray. | The sourced product information establishes the speed, starter yields, and one-year limited warranty, but does not establish a complete comparable list of functions and workflow specifications. |
| Price observed in the listing | $569.99 on Brother USA’s listing when retrieved in 2026; price and availability can change. | A comparable price was not established in the sourced information. |
| Warranty listed | One-year limited warranty, per Brother USA’s product listing. | One-year limited warranty, per Brother USA’s product listing. |
Speed figures are not directly equivalent to typical office throughput: print settings, document content, and other conditions can affect actual results. Check the current Brother product pages and their speed-test footnotes before treating the maximums as an estimate for your own jobs.
Which model is faster?
On Brother’s published figures, the MFC-L3780CDW is faster: its stated maximum is 31 ppm, while the MFC-L3720CDW is listed at 19 ppm for both black and color. The difference may matter if you print frequently or handle larger batches, but the figures alone do not show how long a particular job will take. They should not be read as independently verified performance.
How much starter toner comes with each printer?
Brother lists the L3780CDW with starter black toner rated at approximately 2,300 pages and color cartridges rated at approximately 1,200 pages each. The L3720CDW’s starter black and color cartridges are each listed at approximately 1,000 pages. Those are estimates, not guaranteed output: Brother notes that yield varies with factors such as paper size, print coverage, graphics, and job characteristics. See Brother’s toner-yield guidance for the qualification behind cartridge estimates.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
- Best for Small Businesses: The Brother MFC L3780CDW small business printer is a wireless multi-function digital color printer with copy, scan, and fax functionalities that consistently produces pristine, laser-quality output on every page
- AMPLIFY YOUR PROFESSIONAL DOCUMENTS. This Brother laser printer provides the consistent performance of laser-quality digital color printing
- MAXIMIZE EFFICIENCY WITH ALL-IN-ONE FUNCTIONALITY. This Brother all in one printer has print speeds up to 31 ppm(1) and scan speeds up to 29/22 ipm(2) (black/color) with the added timesaving benefit of single-pass duplex copy and scan
- RELIABLE RESULTS WITH BROTHER GENUINE TONER. Choose Brother Genuine TN229 Standard Yield, TN229XL High Yield, or TN229XXL Super High Yield for your Brother printer. Refresh EZ Print Subscription Service, you'll never worry about running out of toner
- Flexible Connection Options: Brother laser color printer has built-in dual band wireless (2.4GHz / 5GHz)(5), Gigabit Ethernet, and Wi-Fi Direct connections, plus a USB interface for local connection to a single computer
Brother’s L3720CDW brochure identifies the TN229 family and DR229CL, BU229CL, and WT229CL supplies. That does not establish that every listed supply is compatible with both printers. Before ordering, check the current compatible-supplies listing for the exact model and region rather than relying on a shared product-family name.
What is verified about the L3780CDW’s office workflow?
Brother describes the MFC-L3780CDW as a color all-in-one with print, copy, scan, and fax functions. Its listing specifies duplex printing, scanning, and copying, a 50-sheet automatic document feeder, and a 250-sheet main tray. Brother also says an optional lower paper tray can raise total capacity to 500 sheets. Confirm the accessory’s exact model number and availability before buying.
Rank #2
- Professional Performance: Dominate your business printing with this Brother Genuine color laser printer delivering exceptional print speeds up to 19 ppm and stunning laser-quality output that makes your documents stand out from the competition
- Advanced Connectivity: Take command of your workflow with dual-band wireless networking (2.4GHz/5GHz), Wi-Fi Direct, and USB 2.0 interface, enabling multiple users to connect and print seamlessly from any device in your office
- Productivity Powerhouse: Maximize efficiency with the 50-sheet auto document feeder, 250-sheet adjustable paper tray, and automatic duplex printing, ensuring uninterrupted performance for your demanding business needs
- Smart Integration: Transform your workflow with the intuitive 3.5" color touchscreen featuring 48 customizable shortcuts and direct access to popular cloud services including Google Drive, Dropbox, and OneNote for seamless document management
- Mobile Command Center: Leverage the power of mobile printing with remote access capabilities, toner level monitoring, and complete printer management directly from your mobile device through the exclusive companion app
The sourced L3720CDW material does not provide a sufficiently complete side-by-side specification to establish which model has an advantage in faxing, duplex scanning, security, or optional paper capacity. Compare the current official specifications or manuals for both models if one of those details will determine your purchase.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which printer should you choose?
Choose the MFC-L3780CDW if its published advantages match your needs
- You want the higher advertised maximum print speed: up to 31 ppm.
- You value the larger estimated starter-toner yields listed for this model.
- You need the specific documented workflow details: fax, duplex printing/scanning/copying, a 50-sheet ADF, or a 250-sheet main tray.
- The current price and optional-tray cost make sense for your budget and workload.
Consider the MFC-L3720CDW if its current price and requirements fit
- Its published maximum of 19 ppm is sufficient for your printing volume.
- You have confirmed that its current functions, connectivity, paper handling, and supplies meet your requirements.
- You can compare its current price with the L3780CDW’s and assess total running costs, not just the printer’s purchase price.
The sourced specifications do not establish a definitive value winner: a comparable L3720CDW price was not available, and the L3780CDW’s displayed $569.99 price is only a retrieval-time listing. Check current prices and availability for both before deciding.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteQuick Recap
Best Value
- Updated design, professional results. High-quality output with sharp color and black printing. Fast print and copy speeds up to 33ppm(1) help boost productivity. Reliable performance and durable, compact design, 25% smaller than the previous model. Multipurpose tray for custom printing.
- Maximize printing budgets. Offers built-in value with included Brother Genuine 3,000-page black and 1,800-page color standard yield toner cartridges. Help lower printing costs by using the TN635XXL super high yield replacement toner cartridges for 7,500-page black and 6,500-page color(2).
- Advanced scanning. High-speed, two-sided scanning up to 104ipm(3) with 80-page auto document feeder(4) and legal-size glass. Scan to cloud, email, SharePoint, and more from the touchscreen(5). Supports the added benefit of creating searchable and editable Microsoft Office documents(6).
- Productivity-enhancing features. Flexible connectivity, including built-in dual-band (2.4GHz / 5GHz) wireless networking and Gigabit Ethernet networking. 7” color touchscreen for easy menu navigation, scan preview, and up to 64 customized shortcuts for frequently used tasks.
- Triple Layer Security. Advanced security features to help keep devices secure, protect documents in transit to and from print devices, and safeguard networks. Includes an integrated NFC card reader for easy badge authentication.
Rank #4
- Brother USA AUTHORIZED - Brother Full USA Warranty | Complete All-in-One Performance: Powerful print, copy, scan, and fax capabilities designed for busy home offices and small businesses needing reliable daily productivity.
- High-Speed Color Printing: Fast output with speeds of up to 31 pages per minute (ppm) in both black and color, helping teams handle large workloads efficiently.
- Advanced Scanning & Touchscreen Control: Features single-pass duplex scanning and copying along with a 3.5" color touchscreen for easy navigation and direct cloud access.
- Flexible Connectivity & Paper Handling: Connect through dual-band Wi-Fi, Ethernet, USB, Wi-Fi Direct, and NFC, with a 250-sheet paper tray, 30-sheet multipurpose tray, and 50-sheet ADF for versatile media handling.
- INCLUDED IN THE BOX: Brother MFC-L3780CDW Printer | Starter Black Toner Cartridge | Starter Cyan Toner Cartridge | Starter Magenta Toner Cartridge | Starter Yellow Toner Cartridge | Drum Unit | AC Power Cord | Quick Setup Guide | Safety and Protection Documentation
Rank #3
- Best for Small Businesses,the Brother MFC-L3780CDW wireless multi-function digital color printer with copy, scan, and fax functionalities consistently produces pristine, laser-quality output on every page
- HIGHER VOLUME PRINTING – Brother Genuine TN229XLBK High Yield Black Toner is formulated to achieve consistent yields up to 3000 pages.(1) From client proposals to C-level presentations, you can depend on the premium laser quality of Brother Genuine Toner
- HIGHER VOLUME PRINTING – Brother Genuine TN229XL High Yield Cyan Toner is formulated to achieve consistent yields up to 2300 pages.(1) From client proposals to C-level presentations, you can depend on the premium laser quality of Brother Genuine Toner
- HIGHER VOLUME PRINTING – Brother Genuine TN229XL High Yield Magenta Toner is formulated to achieve consistent yields up to 2300 pages.(1) From client proposals to C-level presentations, you can depend on the premium laser quality of Brother Genuine Toner
- HIGHER VOLUME PRINTING – Brother Genuine TN229XL High Yield Yellow Toner is formulated to achieve consistent yields up to 2300 pages.(1) From client proposals to C-level presentations, you can depend on the premium laser quality of Brother Genuine Toner
What to verify before buying
- Confirm the exact US model and current price; the L3780CDW price cited here was displayed by Brother USA in 2026 and may have changed.
- Check current manuals or product pages for the features you rely on, especially fax, duplex scanning, security, and paper-tray options.
- Verify toner and other consumable compatibility by exact printer model.
- Use cartridge yields as estimates; your page coverage and document mix affect actual output.
- Review the current warranty terms and any optional-tray requirements before purchase.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
