Our take
Brother's MFC-L3770CDW is a color all-in-one designed for an office that wants more than print output. The U.S. product page lists print, copy, scan, and fax, automatic duplex printing, single-pass duplex copy and scan, built-in Wi-Fi, Ethernet, NFC, and output up to 25 pages per minute. A 50-sheet ADF handles multipage originals, while the standard paper arrangement includes a 250-sheet tray and 30-sheet multipurpose feed. Brother states a recommended maximum of up to 1,500 pages per month, but the reviewed sources do not provide a lower endpoint. It is therefore best compared with light to moderate office needs, without inventing a complete monthly range. The combination of wireless and wired connections gives placement flexibility, while the duplex feeder reduces manual handling for two-sided originals. The printer is a color MFP rather than a print-only device, so assess whether the extra scan and fax hardware is useful. Brother's product page and brochure document features, not current seller condition, stock, or price. Confirm model label, 110–120 V supply, ADF and duplex behavior, ports, consumables, drivers, and return terms before selecting an offer. The historic ASIN does not establish an exact present listing; the purchase link is a tagged model search.
A small shared office that wants color MFP functions, Wi-Fi or Ethernet, and automatic two-sided output and scanning..
Avoid it if you need a mono-only printer, a higher documented monthly recommendation, or a device with a fully stated lower and upper workload band.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Brother documents color print, copy, scan, and fax with standard Wi-Fi and Ethernet.
- Automatic duplex printing and single-pass duplex copy/scan support two-sided workflows.
- A 50-sheet ADF, 250-sheet main tray, and up to 25 ppm rating suit a shared small-office role.
What to weigh up
- The reviewed source gives a recommended maximum up to 1,500 pages monthly but no lower endpoint.
- Confirm the 110–120 V configuration and exact included accessories on the offered unit.
- A used printer still needs tests of color, feeder, duplex paths, wireless setup, and consumables.
The key details
| Model covered | MFC-L3770CDW |
|---|---|
| Main functions | Print, copy, scan, and fax |
| Print output | Color; up to 25 ppm |
| Two-sided printing | Automatic duplex; Wi-Fi and Ethernet |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
Color output with full MFP functions
The L3770CDW combines color printing with copying, scanning, and fax. That can simplify a small office where the same users prepare color pages and handle incoming originals. A print-only model may be more straightforward when no capture functions are needed, but it cannot provide the one-device workflow. Brother's U.S. page identifies the exact model and its functions, while the listing's bundle cable does not change the base printer identity.
Duplex extends beyond printing
Brother lists automatic duplex printing and single-pass duplex copy and scan. That matters because two-sided output and two-sided original capture are different tasks. The 50-sheet ADF gives the scanner a multipage feeder, and the single-pass description reduces the need to turn originals manually. Check the feeder and both duplex paths on the actual machine, since a manufacturer's documented feature does not guarantee a used unit is mechanically sound.
Flexible wireless and wired connections
The U.S. product page documents built-in Wi-Fi, Ethernet, and NFC. Wi-Fi can support placement away from a router, while Ethernet can suit a shared wired office and NFC can simplify supported mobile interaction. Confirm the network security and operating systems in use before choosing the connection. A seller title or bundled cable does not add another network feature; rely on Brother's exact model source and verify the offered configuration.
Tray capacity and rated speed
Brother lists a 250-sheet main tray and 30-sheet multipurpose feed, with output up to 25 pages per minute. Those specifications support everyday shared office work but do not make it a high-capacity departmental device. Consider how often users print envelopes or alternate paper, then inspect both input paths and the output area. Rated speed is a manufacturer figure and may not match the timing of every job or a machine's present condition.
Read the volume guidance accurately
Brother states a recommended maximum of up to 1,500 pages per month in the reviewed product material. It does not provide a lower recommended endpoint there, so the minimum remains unknown. Do not turn that one ceiling into a fabricated range or use maximum duty cycle to fill the gap. Compare routine pages with the stated maximum and think separately about service, supplies, and peaks. The finder uses only the verified upper endpoint.
Verify regional power and functions
The reviewed U.S. materials describe a 110–120 V configuration. Confirm the label on the actual unit, exact MFC-L3770CDW model, included power cable, toner, ADF operation, color output, fax, network connection, and return terms. Brother's documents establish the product design, not the current condition of an Amazon seller's printer. The historical ASIN is not used as proof of an exact offer, so this page links to a tagged model search.
What else to compare
Choose HP M475dn for a wired color fax MFP with a 1,000–2,500 monthly range, or Lexmark X738de for a higher-volume wired office MFP with optional wireless.
Before you buy
Does the MFC-L3770CDW scan both sides automatically?
Brother documents single-pass duplex copy and scan in addition to automatic duplex printing for the exact model.
Does it include built-in Wi-Fi and Ethernet?
Yes. Brother's U.S. product page lists both Wi-Fi and Ethernet for MFC-L3770CDW.
What monthly workload does Brother recommend?
The reviewed source states a recommended maximum up to 1,500 pages monthly but does not give a lower endpoint.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Brother U.S. MFC-L3770CDW product page ↗ — checked October 5, 2026.
- Brother U.S. functions, duplex print/scan, interfaces, speed, ADF, tray, and monthly recommendation ↗ — checked October 5, 2026.
- Brother MFC-L3770CDW brochure with regional voltage and performance specifications ↗ — checked October 5, 2026.
The decision
The MFC-L3770CDW fits a small office that values wireless color MFP work and duplex capture. Treat 1,500 pages as a maximum guidance point, not a full range.
Is it the right fit?
Check the exact model and today’s offers on Amazon.