Brother MFC-L3780CDW

On standard TN229 toner the MFC-L3780CDW prints a black page for about 5.53 cents and a color page for about 23.70 cents — the cheapest color page of the three color lasers here, and the reason it now leads its tier. Running cost still lands in amber rather than green territory, because like every color laser it is far pricier per color page than an ink tank.

The mitigating factor is the toner ladder. Brother offers high-yield (TN229XL) and super-high-yield (TN229XXL) cartridges, and the XXL is rated for roughly 4,500 black and 4,000 color pages — which brings the cost down to about 2.85 cents black and 15.38 cents color, comfortably the lowest running cost of any color laser in this guide. The standard-toner figure is the worst case; feed it super-high-yield toner and the economics improve considerably. As with all supply pricing, check current costs before buying.

Bottom line on running cost: The priciest color page in its tier on standard toner, but a broad high-yield ladder — up to the super-high-yield XXL — brings volume costs down substantially.

As a color laser, the MFC-L3780CDW produces crisp, consistent text and clean business color. Toner fused to the page means output is smudge- and water-resistant straight out of the tray, and color graphics, charts, and presentations come out uniform page after page — exactly the durable, professional look a color laser exists to deliver.

Like any laser, it’s built for documents and business graphics rather than glossy photographs; for photo work the six-color EcoTank Photo is the right tool. For the reports, forms, and marketing material a home office prints, quality is solid and dependable, landing just a touch behind the sharpest in its tier but well within professional standards.

Bottom line on print quality: Crisp, durable text and clean, consistent business color. Built for professional documents, not photos — and very good at what it’s for.

Speed is the MFC-L3780CDW’s headline strength, and it earns the highest mark in its tier here. It prints at up to 31 pages per minute in both black and color — the fastest color laser in our guide — and, as with any color laser, color pages run at the same speed as black, so mixed document-and-graphics jobs come out at full pace.

Paper handling backs it up: automatic two-sided printing, a 50-sheet document feeder that copies and scans both sides in a single pass, and a 250-sheet main tray. The single-pass duplex ADF is a real productivity feature for anyone regularly copying or scanning multi-page, double-sided documents, and combined with the class-leading print speed it makes this the quickest machine in the tier for getting through a stack.

Bottom line on speed & paper handling: The fastest color laser here at 31 ppm, with a single-pass duplex ADF and auto-duplex printing. Best-in-tier for throughput.

The MFC-L3780CDW is a fully-equipped office all-in-one. It prints, scans, copies, and faxes, with a 3.5-inch color touchscreen for walk-up control and the single-pass duplex ADF for batch document work. Connectivity is complete — Wi-Fi, Ethernet, and USB — so it slots in as a personal printer or a shared networked machine equally well, with Brother’s mobile printing on top.

There’s very little a home office would miss here: faxing, batch two-sided scanning, wired or wireless sharing, and PC-free copying are all covered, and the touchscreen makes them easy to reach. It’s one of the better-equipped machines in the guide, matching or beating its color-laser rivals on features.

Bottom line on features & connectivity: A complete all-in-one — print, scan, copy, fax, touchscreen, duplex ADF — with Wi-Fi, Ethernet, and USB. Among the best-equipped in the guide.

The MFC-L3780CDW’s supply story centers on the breadth of its TN229 toner line: a standard cartridge, a high-yield TN229XL, and a super-high-yield TN229XXL rated for around 4,500 black and 4,000 color pages. That ladder is a genuine advantage — it lets you match cartridge capacity to your print volume and buy up to the lowest per-page tier — and third-party and remanufactured TN229 toner is also widely available for those who prefer a cheaper alternative to genuine cartridges.

On reliability, Brother’s laser all-in-ones have a long-standing reputation as dependable, high-duty office hardware, and laser’s inherent advantage applies: with no print head to clog, a machine that sits unused for a while starts right back up. It’s proven, low-maintenance office equipment.

Bottom line on consumable freedom & reliability: A deep toner ladder — standard through super-high-yield — plus widely available third-party options, backed by Brother’s dependable laser reliability.

The MFC-L3780CDW is competitively priced for a fast, full-featured color-laser all-in-one, and its value proposition is strongest for a higher-volume user who will take advantage of the super-high-yield toner to keep the running cost down. For a light-duty office that prints little color, the high standard-toner cost works against it, and one of our other picks may fit better.

It carries a 1-year limited warranty — standard for the category, though it trails the Canon color laser’s unusually long three-year coverage. Weigh that alongside the MFC-L3780CDW’s speed advantage: it’s the faster machine, the Canon is the cheaper-to-run and longer-warrantied one, and which wins depends on whether throughput or running cost matters more to you.

Bottom line on value & warranty: Strong value for a higher-volume color user who leans on high-yield toner; less so for light color use. Standard one-year warranty.