Brother - MFC-J5855DW vs Epson - WorkForce Pro WF-7840
Between the MFC-J5855DW and WorkForce Pro WF-7840, the MFC-J5855DW comes out ahead in pages/min (color) and pages/min (mono), while the WorkForce Pro WF-7840 wins on several specs. Overall, the MFC-J5855DW scores 65.7 and the WorkForce Pro WF-7840 scores 60.4 on our Mars Score.
Which should you buy?
The MFC-J5855DW edges ahead on the Mars Score (65.7 vs 60.4), but the 5.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the MFC-J5855DW if you care most about pages/min (color) and pages/min (mono). The biggest gaps in its favor are pages/min (color), pages/min (mono).
The WorkForce Pro WF-7840 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable type, color, auto duplex, so those specs don't separate the two — focus on the differences below.
Bottom line: the MFC-J5855DW is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Brother - MFC-J5855DW wins
- ▲Pages/min (color) — 150.00% more. 30 vs 12.
- ▲Pages/min (mono) — 20.00% more. 30 vs 25.
Why Epson - WorkForce Pro WF-7840 wins
- No decisive advantages.
Spec comparison
Spec
| Spec | Brother - MFC-J5855DW | Epson - WorkForce Pro WF-7840 |
|---|---|---|
| Type | Inkjet AIO | Inkjet AIO |
| Color | true | true |
| Pages/min (mono) | 30lead | 25 |
| Pages/min (color) | 30lead | 12 |
| Resolution | 4800x1200 dpi | 4800x2400 dpi |
| Max paper size | Tabloid | Tabloid |
Features
| Spec | Brother - MFC-J5855DW | Epson - WorkForce Pro WF-7840 |
|---|---|---|
| Auto duplex | true | true |
| ADF | true | true |
| Wi-Fi | true | true |
| AirPrint | true | true |
Spec-level deep dives
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