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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
If you mainly need to turn piles of two-sided paperwork into clean digital files, buy a dedicated high-speed document scanner and skip the print side entirely. If you also print, copy and fax, buy an all-in-one with an automatic document feeder that flips pages by itself. The nine machines below split cleanly along that line, and the top pick earns its spot with 35 ppm black printing and a 250-sheet tray for everyday office volume.
This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Duplex scanning is the one feature that decides whether an all-in-one saves your afternoon or eats it, so every pick here is judged on its feeder type, ipm rating and sheet capacity. My full breakdown of the duplex scanner all-in-one picks below explains exactly which one matches your desk and workload.
Top Picks
How To Choose The Best Duplex Scanner All-in-One
Your first decision is if you need to print at all. A pure document scanner does one job — turning paper into files — and does it far faster than any all-in-one built around printing. A multifunction printer scans well enough, but you pay for print hardware you may rarely use.
Single-pass duplex versus flip-over duplex
A single-pass duplex feeder reads both sides of a sheet in one trip through the paper path. A flip-over feeder pulls the page back through to scan the reverse side. Single-pass is the feature to hunt for on long two-sided contracts, because the page never gets dragged back through the rollers.
What the ipm and ppm numbers really tell you
Pages per minute (ppm) measures printing. Images per minute (ipm) measures scanning, and the two are not the same speed. A machine rated at 23.6 ipm black scans roughly a page every two and a half seconds — fine for invoices, slow for a box of receipts.
Feeder capacity and the reload rhythm
A 50-sheet feeder means constant reloading on a 400-page job. A 100-sheet feeder halves that. If you scan in bursts of a few dozen pages, either capacity works; if you digitize archives, capacity is the spec you will feel most.
Where the money goes after purchase
Laser toner costs more per cartridge but lasts through hundreds of pages before a warning. Ink tanks refill cheaply per bottle but drink ink on colour-heavy pages. Neither is automatically cheaper — it depends on whether your output is mostly text or mostly images.
Side-by-Side Comparison
| Model | Best For | Duplex Scanning | Print Speed | Feeder Capacity | Amazon |
|---|---|---|---|---|---|
| HP LaserJet Pro 3101sdw★ Best Overall | Fast office duplex printing | Auto 2-sided printing | 35 ppm black | 50 sheets | Amazon |
| Brother MFC-L2820DWBest Value | Compact monochrome all-rounder | Automatic | 34 ppm black | 50 sheets | Amazon |
| Epson WorkForce Pro WF-7840Widest Format | Wide-format 13 x 19 jobs | Automatic | 25 ppm black | — | Amazon |
| Canon MAXIFY GX2020 | Cheap refillable colour tanks | Automatic | 15 ppm black | 35 sheets | Amazon |
| HP Color LaserJet Pro MFP 3301cdw | Colour laser with 2-sided single-pass scan | 2-sided single-pass | 26 ppm black/colour | — | Amazon |
| ScanSnap iX2500 | High-volume archive scanning | 45 ppm double-sided | — | 100 sheets | Amazon |
| Canon imageCLASS MF462dw | Fast monochrome office print + copy | One-pass ADF, 100/80 ipm | 37 ppm black | 50 sheets | Amazon |
| Brother MFC-L3720CDW | Colour laser with touchscreen shortcuts | Automatic | 19 ppm black/colour | 50 sheets | Amazon |
| Lexmark MX431adw | Steel-frame light business duty | Standard two-sided scanning | 42 ppm black | — | Amazon |
Detailed Reviews
1. HP LaserJet Pro 3101sdw
Our pick — 4.5+★ from 600+ verified ratings; the strongest balance of quality and price.
The workhorse that spits out page one in seven seconds flat.
For a small office drowning in black-and-white contracts, this is the sensible buy. It prints up to 35 pages per minute in black (ppm — how many sheets the machine can push out in sixty seconds). That is the spec that decides whether a 200-page print run takes a coffee break or an afternoon.
The 50-sheet automatic document feeder (ADF — the tray that pulls pages through the scanner for you) handles multi-page copies without babysitting. Scanning is the weaker half of the equation here, though. The unit does automatic two-sided printing, and the listing’s duplex claim sits on the print side rather than a single-pass scan path. If your day is mostly scanning double-sided paper, look at the ScanSnap iX2500 instead.
Crisp text and steady operation across small-office jobs are what win people over. The catch worth knowing is cartridge lock-in: this printer only accepts HP cartridges with genuine chips, and periodic firmware updates keep that lock enforced, so budget for genuine toner rather than third-party refills.
Where It Delivers
- Seven-second first page — you are not standing over it waiting
- 35 ppm black is genuinely fast for a compact office unit
- 250-sheet input tray means fewer paper reloads
- Ethernet and USB alongside wireless for a stable wired network hookup
What To Weigh First
- Monochrome only — no colour output at any price
- Genuine-chip-only cartridges block cheaper third-party toner
- Duplex strength is on printing; scanner throughput is not its headline
Reach for this if: your work is text-heavy two-sided printing on a wired office network and you want speed without a colour premium.
Think twice if: you digitise two-sided paper in bulk — a dedicated scanner wins that job.
2. Brother MFC-L2820DW
A compact footprint with a 2.7-inch touchscreen and cloud apps built in.
Small studios and home offices that want print, copy, scan and fax in one box should start here. It runs at 34 pages per minute black — a shade slower than the HP above, which prints 35 — but it adds a 2.7-inch touchscreen for scan-to-Google-Drive and scan-to-Dropbox without opening a laptop.
Scanning speed is the number that matters for duplex work: up to 23.6 ipm black and 7.9 ipm colour. That translates to roughly one black page every two and a half seconds, so a 50-sheet two-sided stack clears in a few minutes rather than an hour. The 50-page ADF covers multi-page copy, scan and fax in one go.
Connection options are generous — dual-band wireless on both 2.4GHz and 5GHz, Ethernet, or a direct USB cable to a single computer. Buyers call it a no-fuss printer that just works, though dropped connections are the one recurring complaint. Cost per page is the other honest caveat: the starter toner runs dry quickly, and low-toner warnings tend to arrive at the worst possible moment.
The durable pick: a long-running brand reputation for build and support sits behind this model, and owners who switched from other brands tend to stay switched.
The toner math: this takes Brother TN830, TN830V or TN830XL cartridges, and the Refresh EZ Print subscription is the route the maker pushes if you print steadily.
The fit: a compact footprint plus a touchscreen makes this the easy choice for a small home studio that wants every function in one machine.
The snag: starter toner burns out fast, so price in a replacement cartridge from day one.
3. Epson WorkForce Pro WF-7840
The only pick here that swallows a 13 x 19 inch sheet.
Architects, draughtspeople and anyone printing plans should ignore every other machine on this page. This one takes wide-format paper up to 13 by 19 inches, which no other all-in-one here does. Colour prints run at 12 pages per minute, and black at 25 ppm — a real gap against the Brother MFC-L2820DW’s 34 ppm, so plan your print runs accordingly.
Duplex printing is automatic, and the connector set includes Ethernet, USB and wireless 802.11a/b/g/n/ac. Four DURABrite Ultra cartridges come in the box, one black and three colour, and the colour depth rating is 48 bpp for smooth photographic gradients.
The trade-offs are real and worth naming. Connectivity is the loudest gripe, and firmware updates are the usual culprit — pages of complaints about printers dropping off Wi-Fi until you power-cycle them. The machine is also heavy and bulky on a desk. On the other side sits long-term value: one buyer’s AutoCAD workflow hit roughly 12,000 pages over three years without applying a firmware update, which is the cleanest illustration of how much that one habit matters here.
Wide paper, wide appeal: crisp lineweights on technical drawings are the standout strength, and it works with generic ink cartridges if you avoid firmware prompts.
The connectivity tax: treat Wi-Fi as fragile and run an Ethernet cable if you can reach the router.
Buy it for: oversized drawings, posters and A3-plus documents that no letter-size machine can handle.
Skip the wireless setup: hardwire it and you sidestep the one problem that recurs in the listings.
4. Canon MAXIFY GX2020
Pour ink from a bottle instead of buying a cartridge every month.
If cartridge sticker shock is what drove you to read this page, start with the tank system here. One set of GI-25 ink bottles is rated for up to 3,000 black and 3,000 colour pages, so the refill ritual is a few times a year rather than a monthly errand. Printing runs 15 ppm black and 10 ppm colour — modest next to the laser machines, because this one prioritises cheap pages over outright speed.
The 35-sheet ADF handles two-sided originals, and automatic duplex printing is built in. There is a 2.7-inch LCD colour touchscreen, and it handles print, copy, scan and fax. A 250-sheet main tray keeps paper handling out of your way for standard jobs.
Two honest limits surface in owner accounts. Legal-size printing does not extend to legal-size scanning, and that gap is not clearly disclosed before you buy. Photo output draws split opinions — some find images soft where text stays sharp. Setup earns the machine real credit, though, with a straightforward touchscreen walkthrough that even self-described non-technical buyers finished without frustration.
Worth the Desk Space
- 3,000 black and 3,000 colour pages per bottle set
- Auto duplex printing plus a 35-sheet ADF for two-sided copies
- Compatible ink accepted, so you are not locked to one supplier
Read Before You Buy
- Legal-size scanning is not supported even though legal-size printing is
- 15 ppm black is the slowest print speed on this list
- Photo reproduction divides opinion
Made for: colour-heavy homes and small offices that print far more than they scan archives.
Not for: anyone who needs legal-size scans or speeds closer to the laser picks above.
5. HP Color LaserJet Pro MFP 3301cdw
Colour laser output with a feeder that reads both sides in one pass.
This is the colour-laser answer for an office that scans as much as it prints. Two-sided single-pass scanning means the page never flips back through the rollers, so a stack of two-sided invoices becomes a clean PDF without a second run. Colour and black both run at 26 pages per minute.
It arrives as an official refurbished unit in a brown box with the Certified Refurbished mark, backed by a one-year warranty. Genuine parts and toner are included, and the spec sheet lists TerraJet toner for more vivid colour. Built-in HP Wolf Pro Security adds a layer of protection for shared network use, and the 250-sheet input tray covers everyday volume.
Two gripes show up often enough to plan around. Sleep behaviour is the big one — the machine cuts network access when it naps, and the usual fix is a full power cycle each time. The other is toner economy: a low-toner warning can appear well before pages actually fade, so print quality is the better gauge than the warning light.
The refurbished angle: a certified unit with a year of cover and pre-installed toner makes this the least expensive route into colour laser with a proper duplex scan path.
The sleep trap: if a plugged-in network is essential to your workflow, plan for the power-cycle routine or a workaround.
Best for: a busy colour office that needs single-pass two-sided scanning and can live with a refurbished box.
Look elsewhere if: your team prints over a shared network and cannot tolerate a sleep-mode reconnect ritual.
6. ScanSnap iX2500 Wireless or USB High-Speed Document Scanner
The one machine here built purely to eat paper, at 45 pages a minute.
No printer, no toner, no compromise. This scans double-sided at 45 ppm through a 100-sheet feeder, which is the single most important number for anyone digitising an archive. One long-session test cleared 376 duplex pages in five batches and assembled a single searchable PDF in minutes. At that rate, a 400-page archive clears in under an hour.
The paper path is where the engineering shows. A brake roller feeds sheets smoothly, a multi-feed sensor catches pages stuck together, and skew detection stops a crooked page before it tears. Resolution runs to 600 dpi through a CIS sensor, which is plenty for text, receipts, photos and business cards. Wi-Fi 6 plus a USB-C port means it works with or without a computer in the loop.
Where it stumbles is software. Buyers who scan on Linux are effectively locked out without paid workarounds, and the Windows and Mac app draws complaints about complexity and upgrade friction compared with older ScanSnap tools. A recurring gripe too: leaving the iOS app mid-scan drops the connection. The hardware is fast; the software is fussy.
What wins people over: raw speed and straight, crisp scans that turn a 188-sheet double-sided document into one file in a single sitting.
The real cost: the touchscreen and cloud features add steps that pure-speed users resent; if you want a simple scan button, this is more machine than you asked for.
Pick this one if: your job is bulk two-sided digitising — contracts, medical files, receipts, old photos — and speed is the whole point.
Consider the alternative if: you budget on a fixed Windows setup and need a scanner to also print.
7. Canon imageCLASS MF462dw
A 50-sheet one-pass feeder that scans 100 images a minute in black.
Scanning speed is the headline. The one-pass ADF (automatic document feeder, which pulls each sheet through once) scans up to 100 ipm (images per minute) in black and 80 ipm in colour on letter-size two-sided sheets — the fastest scanning number of any multifunction printer here. That turns a two-sided contract into a finished file in seconds rather than minutes. First print lands in roughly 5 seconds, and printing holds 37 pages per minute.
The paper handling is built for volume. A 250-sheet standard cassette plus a 100-sheet multipurpose tray gives 350 sheets before you add the optional AH-1 cassette, which lifts total capacity to 900. A 5-inch colour touchscreen with the Application Library puts your most-used functions one tap away, and the standard cartridge is rated around 3,000 pages. A three-year limited warranty adds cover most rivals here do not match.
Honest cautions: the machine is bigger than photos suggest, prints fast but audibly, and the scanner is the weak spot for anyone relying on scan-to-PC. Desktop scanning through the driver trips Windows-update faults, though scanning to a USB stick sidesteps it. Connectivity also blips on some networks — a reconnect can trigger a test print and waste paper.
The speed case: 37 ppm print and 100 ipm black scan make this the busiest paper-handler on the page for monochrome offices.
The warranty edge: three years of cover plus expandable paper capacity up to 900 sheets suits a growing department.
Right call for: a monochrome office that scans two-sided documents in bulk and wants a long warranty with room to grow the paper trays.
Wrong call if: scan-to-PC is central to your workflow, which is exactly where this machine draws the most criticism.
8. Brother MFC-L3720CDW Wireless Colour Laser All-in-One
Forty-eight shortcuts on the touchscreen, so your routine scans are one tap.
Colour laser printing at 19 pages per minute in both black and colour is the core figure. That is slower than the monochrome lasers above — the Canon MF462dw runs 37 ppm black — so choose this when colour matters more than raw speed. The 3.5-inch colour touchscreen carries 48 customisable shortcuts plus direct Google Drive, Dropbox and OneNote access.
The 50-sheet ADF, 250-sheet adjustable tray and automatic duplex printing cover everyday office volume without babysitting. Connectivity spans dual-band wireless on 2.4GHz and 5GHz, Wi-Fi Direct and USB 2.0, so several people can print from different devices. Mobile management covers toner-level checks and remote printer control.
Owners prize the print and scan output, and most find setup smooth. Reliability and ink life are the split issues. A vocal minority report colour banding after several months and find drum replacement costly once the short warranty window closes. Treat that as the fit question: light-to-moderate office duty suits this machine, constant colour volume wants a different class of printer.
Why It Belongs
- Vivid colour and sharp text at 19 ppm black and colour
- 48 programmable touchscreen shortcuts for repeat jobs
- Wi-Fi Direct lets phones print without a router
Where It Gets Tricky
- Colour drum replacement is a real future cost
- 19 ppm is the slowest of the laser all-in-ones here
- Wireless connectivity draws mixed reports
the balance: a small colour office that wants a full-featured touchscreen and prints a moderate number of pages each month.
Not the pick for: a print shop pushing colour documents daily, where drum costs will catch up.
9. Lexmark MX431adw
A steel-framed 42 ppm laser that scans both sides straight from the feeder.
Light business duty with a rugged build describes this machine. It prints at 42 pages per minute, the highest black-and-white speed on this page, and the first page arrives in 5.9 seconds. A steel frame targets light business duty, and a touchscreen drives the copy, scan and fax functions.
The two-sided scanning is the key selling point for duplex work. Both sides of a two-sided original go through in one run, which saves real time on contracts and forms. Connectivity runs over Ethernet and USB, and the unit accepts up to 100% recycled paper with a free cartridge recycling program. Security features protect information on the device and across the network.
Fit notes: setup is mixed, with some finding it straightforward and others wishing for a simpler walkthrough. Value is the most debated topic — toner is expensive, and a recurring gripe is that reliability can decline after a couple of years of use. A glass component has also drawn complaints from a handful of owners. Treat this as a solid light-duty office machine rather than a heavy-volume one.
Speed and steel: 42 ppm print with a durable frame suit a small office that values a long service life.
The toner reality: running costs are the honest weak point, so factor genuine supplies into your budget before you commit.
Fits best: a small business that needs fast monochrome duplex scanning and a machine that feels solidly built.
Pick a different route if: you need colour output or fast, current software support.
Know the Specs
Single-pass vs flip-over duplex scanning
A single-pass duplex feeder scans both sides of a page in one trip through the paper path. A flip-over feeder pulls the sheet back through to expose the reverse side. Single-pass is the feature to look for when duplex scanning speed matters, because the page is only handled once. On a long contract, that saves a full second pass per sheet.
Ipm vs ppm — and why the difference bites
Ipm (images per minute) is a scanning speed; ppm (pages per minute) is a print speed. They are rated separately and the numbers are not interchangeable. A machine rated at 23.6 ipm black handles a page every two and a half seconds or so; one at 100 ipm black handles it far faster. Always compare the scanning spec separately from the print spec.
Automatic document feeder capacity
The ADF tray holds a set number of sheets — 35, 50 or 100 depending on the model. The bigger the feeder, the less reloading on large jobs. For a 500-page archive, a 100-sheet feeder cuts the reload cycle to a fifth of a 35-sheet one. Combined with a paper-load sensor, a bigger feeder is the biggest time-saver on repeat scans.
Toner versus ink-tank economics
A laser uses toner cartridges rated for hundreds or thousands of pages; an inkjet with refillable tanks uses bottled ink rated for 3,000 pages a set. Neither is cheaper in every case. Text-heavy work usually favours toner; colour-heavy work and cheap refills usually favour tanks. Look at your page mix first, then at the cartridge or bottle price.
Common Questions
What does single-pass duplex scanning actually change on a two-sided stack?
Do I need a scanner that can print, or is a dedicated scanner better?
How big a difference does 35 ppm versus 37 ppm print speed make?
Are the ink-tank printers cheaper to run than laser toner printers?
Why do some printers drop off Wi-Fi when they sleep?
Can a monochrome laser also scan in colour?
What sheet count should I set in the feeder to avoid jams?
Do wide-format all-in-ones scan 13 x 19 inch originals too?
Can these all-in-ones scan with a USB stick instead of a computer?
Is a refurbished colour laser safe to buy for a small office?
The Bottom Line
If you want one machine that balances speed, reliability and daily duplex printing, the HP LaserJet Pro 3101sdw is the strongest overall pick — fast first-page output and a 250-sheet tray make it the everyday workhorse. For a compact all-rounder, the Brother MFC-L2820DW brings a touchscreen and cloud printing at a lower entry point. And if pure double-sided scanning speed is the entire goal, the ScanSnap iX2500 at 45 ppm through a 100-sheet feeder is the one to reach for.
How we choose
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of October 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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