Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Brother - MFC-J5855DW | HP - OfficeJet Pro 9135e |
|---|---|---|
| Pages/min (color) | 30 | 18 |
| Pages/min (mono) | 30 | 22 |
Between the MFC-J5855DW and OfficeJet Pro 9135e, the MFC-J5855DW comes out ahead in pages/min (color) / pages/min (mono), while the OfficeJet Pro 9135e wins on several specs. Overall, the MFC-J5855DW scores 76.3 and the OfficeJet Pro 9135e scores 71.2 on our Mars Score.
Which should you buy?
The MFC-J5855DW edges ahead on the Mars Score (76.3 vs 71.2), but the 5.1-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) / pages/min (mono). The biggest gaps in its favor are pages/min (color), pages/min (mono). The single most decisive one: Pages/min (color) — 66.67% more. 30 vs 18.
The OfficeJet Pro 9135e similarly does not 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 do not 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.
Which should you buy: Brother - MFC-J5855DW or HP - OfficeJet Pro 9135e?
Brother - MFC-J5855DW leads the current Mars Score by 5.1 points.The more useful decision is the trade-off behind that result: compare pages/min (mono), pages/min (color) against the way you will actually use the product.
Choose Brother - MFC-J5855DW if…
Brother - MFC-J5855DW has the measurable edge on ppm color, ppm mono.
Choose HP - OfficeJet Pro 9135e if…
HP - OfficeJet Pro 9135e does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Brother - MFC-J5855DW wins
- ▲Pages/min (color) — 66.67% more. 30 vs 18.
- ▲Pages/min (mono) — 36.36% more. 30 vs 22.
Why HP - OfficeJet Pro 9135e wins
- No decisive advantages.
Spec comparison
Spec
| Spec | Brother - MFC-J5855DW | HP - OfficeJet Pro 9135e |
|---|---|---|
| Type | Inkjet AIO | Inkjet AIO |
| Ink system | Cartridge | Cartridge |
| Color | true | true |
| Pages/min (mono) | 30lead | 22 |
| Pages/min (color) | 30lead | 18 |
| Resolution | 4800x1200 dpi | 4800x1200 dpi |
| Max paper size | Tabloidlead | Letter |
Features
| Spec | Brother - MFC-J5855DW | HP - OfficeJet Pro 9135e |
|---|---|---|
| Auto duplex | true | true |
| ADF | true | true |
| Wi-Fiⓘ | true | true |
| AirPrint | true | true |