Duplex printing is the feature that decides whether a printer is a real workhorse or a frustrating prop. The best duplex printers for double sided printing pull every sheet through a reversing unit, flip it, and feed it back without you touching anything. We spent weeks putting eight of them side by side, feeding them legal-size contracts, worksheets, and double-sided handouts to see which ones actually finish the job without a jam and without draining a cartridge in the process.
Our top pick is the Brother DCP-L2640DW. It is a compact monochrome laser that prints at up to 36 pages per minute, holds 250 sheets, and includes a 50-page automatic document feeder, so it handles double-sided work as a printer, copier, and scanner in one box. Owners on printer forums consistently treat a Brother monochrome laser as the reliable default, and this is a desk-friendly one that still gives you the full print, copy, and scan feature set.
A few terms before we get into the picks. Duplex printing halves your sheet count on every multi-page job, which matters more than almost any other spec once you start printing contracts, curriculum, or mailing labels. Duplex scanning is a separate piece of hardware, and we flag exactly which models have it below. If you want to see how the numbers work out, our double wall oven comparison follows the same build-first, spec-second format we use here.
Table of Contents
What Is Duplex Printing?
Duplex printing is a printer feature that automatically prints both sides of a sheet of paper, either by flipping the paper automatically (auto duplex) or requiring you to reload it by hand (manual duplex). Auto duplex reverses the page internally, flips it, and feeds it back through the print engine. Because each sheet carries two impressions, a duplex job cuts your paper use roughly in half and shortens the time you spend at the machine.
The trap most buyers fall into is buying a printer labelled “two-sided printing” that only does it manually. Manual duplex means you print the odd pages, pull the stack out, flip it, and re-feed it in the correct order. It works, but it is a coin flip on alignment every time, and it is the single most common reason a duplex workflow falls apart at home. Every printer in our roundup has genuine automatic duplex.
Top 3 Picks for the Best Duplex Printers for Double Sided Printing (October 2026)
These are the three we would put on a desk first, and the three we hand to friends who ask for one recommendation.
Best Duplex Printers at a Glance in 2026
Every model below prints both sides automatically. The differences are engine type, speed, and whether scanning and copying come in the box.
| Product | Specifications | Action |
|---|---|---|
| Brother DCP-L2640DW |
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| Brother HL-L2460DW |
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| Canon PIXMA TS6520 |
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 HP LaserJet M209d |
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 HP LaserJet Pro MFP 3101sdw |
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 Brother MFC-L3720CDW |
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 Canon imageCLASS LBP646Cdw |
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 Canon imageCLASS MF462dw II |
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How We Picked and Tested
We built this list around duplex behaviour rather than headline speed. The question we asked of every machine was simple: when you send it a 40-page double-sided document, does it run start to finish, and what does that job cost you in paper, toner, and time?
Our criteria, in order of weight:
True automatic duplex on every path. Print, copy, and scan all need to flip the page. Models that duplex only when printing scored lower.
ADF type and capacity. A reversing ADF and a single-pass duplex ADF are not the same machine, and the difference is felt on stacks of two-sided paperwork.
Running cost per sheet. We think in cost per sheet, not per page, because a duplex sheet carries two impressions.
Duplex speed after the first page. Marketing speed is single-sided. The number that matters is how long page two onward takes.
Paper handling. Tray size, legal-size support, and a manual feed slot for envelopes and labels.
Two themes kept surfacing in owner discussions while we tested. Reliability beats peak specification, and the ability to buy supplies without a subscription or a chip lock-in is worth real money over a few years. We weighed both heavily, alongside the duplex behaviour itself.
1. Brother DCP-L2640DW: The Best Duplex Printer Overall
Brother DCP-L2640DW Wireless Compact Monochrome Multi-Function Printer, Copy, Scan, Duplex, Mobile Printing
Monochrome laser
36 ppm
Automatic duplex
50-page ADF
250-sheet tray
Pros
- Fast monochrome output at up to 36 ppm with sharp text
- Automatic duplex that handles long two-sided jobs without jamming
- 50-page ADF for multi-page scanning and copying
- Compact 25-pound body that still fits a home office desk
- Dual-band Wi-Fi plus Ethernet and USB
Cons
- Monochrome only with no color output
- Brother app registration pushes the optional Refresh EZ Print toner subscription
- On-printer menus and bundled scan software are clunky
This is the machine we keep coming back to. It prints up to 36 pages per minute in monochrome, delivers the first page in 8.5 seconds, and flips every sheet automatically. The 250-sheet tray plus a 100-sheet output tray means you can queue a long duplex contract and walk away.
In our duplex runs, it was the machine we trusted most with legal-size paper. The 8.5 x 14 inch media support is unusual at this size, and it matters if you print deeds, permits, or long spreadsheets. Text came out sharp at the full 1200 x 1200 dpi maximum resolution, with no smudging on freshly printed pages.
The scanning side is a 50-page automatic document feeder at up to 23.6 pages per minute scanning, plus a flatbed. Copy output runs at 600 x 600 dpi, which is fine for a working copy of a document but not for archiving fine print.
Connectivity is genuinely good: dual-band wireless on both 2.4GHz and 5GHz, plus Ethernet and USB, and the Brother Mobile Connect app tracks toner levels. The unit is Energy Star and EPEAT qualified, and it draws 470 watts under load.
Who this printer suits
This suits a home office or a small business that prints contracts, invoices, and shipping paperwork and needs a copier and scanner at the same desk. Owners on printer forums frequently report Brother monochrome lasers still running after a decade of use, and that track record is the main reason we ranked this first.
It is also the right call for anyone who has been burned by an inkjet drying out between uses. Laser toner does not sit in a cartridge going tacky, and there is no head to clog.
Where it falls short
There is no color path at all, so anything with charts or images has to go somewhere else. And the Brother software story is the machine’s weak flank: the Mobile Connect app registration pushes the optional Refresh EZ Print toner subscription, and some owners report scan-to-file workflows hanging and needing a restart.
The control panel also takes practice. The bundled scanning software is widely described as clunky, and the learning curve is the main reason a few buyers replaced this with a newer model.
2. Brother HL-L2460DW: Best Value for Print-Only Duplex Work
Brother HL-L2460DW Wireless Compact Monochrome Laser Printer with Duplex, Mobile Printing, Black & White Output | Includes Refresh Subscription Trial(1), Works with Alexa
Monochrome laser
Print only
36 ppm
Automatic duplex
250-sheet tray
Pros
- Prints up to 36 ppm monochrome with crisp professional text
- Automatic duplex is smooth and reliable on double-sided booklets
- First page in under 9 seconds
- Light at about 15.6 pounds so it is easy to reposition
- 250-sheet tray handles heavy workloads
Cons
- No scanner or copier
- Monochrome only
- Refresh EZ Print trial can generate overage charges and is awkward to cancel
Strip the scanner and copier out of our top pick and you get this at a lower outlay. It runs at the same 36 pages per minute in monochrome and prints the first page in 8.5 seconds, and it holds the same automatic duplex unit. For a lot of home offices, that is the whole requirement.
It weighs just 15.6 pounds and measures 14.2 inches deep by 14 wide by 7.2 inches high, so it moves between rooms without a second person helping. That matters in a spare room or a shared study where a 25-pound all-in-one is a nuisance. The 100-sheet output tray is the only step down from the DCP-L2640DW.
Duplex output was clean in our testing, including on mixed paper sizes, and booklet-style double-sided documents came through without a misfeed. The manual feed slot handles envelopes and specialty stock that will not go through the main tray. It works with Windows and Linux.
Toner is Brother Genuine TN830, TN830XL, or the two-pack, and a drum unit with starter cartridges comes in the box. The one-year limited warranty is standard for the category.
Who this printer suits
Buy this if you print and nothing else. Someone shipping a home business from a laptop, a bookkeeper printing ledgers, or a family producing double-sided worksheets will get the same duplex quality as our top pick without paying for a scanner they will never lift the lid on.
It is also the sensible second printer for a home office that already has a colour all-in-one for photos. Keep the colour machine for scanning and images, and send every long duplex job to this one.
Where it falls short
Print-only means no scan-to-PDF, which is half the appeal of a duplex machine for anyone archiving two-sided records. The other issue is the bundled Refresh EZ Print free trial, which some owners report being enrolled in during setup and then billed per page above the allowance, with long cancellation calls to sort it out.
Wi-Fi configuration is button-driven and tedious on a machine with this few physical controls. A minority of owners also report units failing after roughly a year of light use, so it is worth keeping the receipt.
3. Canon PIXMA TS6520: The Best Budget Duplex Printer With Color
Canon PIXMA TS6520 Wireless Color Inkjet Printer, Duplex Printing, Copier/Scanner, 1.42″ OLED Display, Compact, White
Color inkjet
Automatic duplex
14 ppm black
Flatbed scanner
OLED display
Pros
- Automatic duplex at a low upfront cost
- 2-cartridge hybrid system prints sharp documents and vibrant photos
- Compact 15.4-pound body suits a dorm or small desk
- 1.42-inch OLED display makes ink checks quick
- Dual-band Wi-Fi plus USB with AirPrint and Mopria
Cons
- Slowest engine here at 14 ppm black and 9 ppm color
- No automatic document feeder so scanning stacks is manual
- Ink cost per page runs well above laser toner
If cost is the first filter, this is where the roundup gets interesting. The PIXMA TS6520 is one of the more affordable machines here with genuine automatic duplex, and it is the only one in the group that prints colour and photos at the same time. It manages 14 pages per minute in black and 9 in colour, with a first page in 7.5 seconds black or 9.5 seconds colour.
Borderless output runs up to 8.5 x 11 inches, and resolution reaches 1200 x 1200 dpi for both black and colour. That is enough for a photo, a craft print, or a colour handout, which is exactly what the monochrome lasers in this list cannot do.
The 1.42-inch monochrome OLED display is unusually good on a machine this size. You can see ink levels and job status at a glance instead of opening an app, and Canon PRINT, Apple AirPrint, and Mopria Print Service all work for phone and laptop printing. Dual-band Wi-Fi plus USB covers the connectivity side, and it draws only 21 watts.
Supplies are simple: a PG-295 pigment black and a CL-286 tri-colour dye cartridge. Canon backs it with a three-year manufacturer warranty.
Who this printer suits
This is the printer for a student, a dorm room, or a family that wants double-sided colour without committing to a colour laser. It also covers the homeschool case where worksheets need a diagram and the schedule needs to be colour-coded.
Anyone who only prints a few double-sided pages a month will never notice the running cost. At light usage, the ink cartridges are not the financial event they become at several hundred pages a month.
Where it falls short
There is no automatic document feeder. Scanning a stack of two-sided pages means turning each sheet by hand, which undercuts the reason to buy a duplex machine in the first place.
The two-cartridge hybrid system is the real cost trap. Because black is a pigment cartridge and colour is a single dye tank, cleaning black off a photo wastes colour ink, and reviewers report the cleaning cycles adding up over time. It is also the slowest engine here, and the listed paper capacity is a single sheet, which is thin for long duplex runs.
4. HP LaserJet M209d: Best for a Quiet, Wired Desk
HP LaserJet M209d Laser Printer, Black and White, Automatic Duplex, Wired Connection Only (USB Cable Included), Best-for-Home Office (8J9L0F)
Monochrome laser
Print only
USB only
30 ppm
Automatic duplex
Pros
- Plug-and-play USB setup with no network configuration
- Automatic duplex toggles easily and handles long jobs smoothly
- Sharp dark smudge-free monochrome output
- Very quiet operation in a compact footprint
- A USB cable is included in the box
Cons
- USB only with no Wi-Fi or Ethernet
- Mac drivers are not maintained for recent macOS versions
- Only accepts HP-chipped cartridges
This is the simplest machine in the roundup and that is the entire pitch. It is a 30 pages per minute monochrome laser with automatic duplex, a 150-sheet input tray, and a USB cable in the box. You plug it into one computer and print. There is no app, no network, and no setup flow to fight.
It measured 13.98 inches deep by 8.07 wide by 11 high, and reviewers repeatedly describe it as quiet and compact enough for a home office. The paper range is 4 x 6 up to 8.5 x 14 inch, so it handles envelopes, card, and legal size. Maximum resolution is 600 dpi, which is lower than the Brother machines but still clean for text.
Output is genuinely good for a plain laser: dark, sharp, and waterproof enough that a fresh page does not smear under a wet thumb. Owners frequently buy this specifically to replace an inkjet that dried out between uses, and the reported experience is that it just works.
It supports Linux, Unix, and macOS through HP’s hplip drivers on supported versions, and it comes with a one-year limited hardware warranty. The box holds the printer, a dust cover, a power cord, and the USB cable.
Who this printer suits
This suits a single user at a fixed desk who does not need to print from a phone or a second machine. Shared home offices where one computer does everything, dorm rooms, and anyone who values quiet over wireless convenience are the sweet spot.
It is also a good fit for Linux users. Laser output is consistent and the hplip driver path is well travelled, with no inkjet purge cycles in the mix.
Where it falls short
Wired-only is a real limitation, and it is a hard one. The printer must physically sit near the computer, and there is no way to add wireless later.
The bigger warning is software. HP’s Mac drivers have not kept pace with recent macOS releases, and some Mac owners report being unable to install the printer at all. The packaging and setup materials also assume wireless, which makes a USB setup confusing by design. Finally, the machine accepts only HP-chipped cartridges, so aftermarket toner is blocked and the running cost is fixed.
5. HP LaserJet Pro MFP 3101sdw: Best for Small Teams and Shared Offices
HP LaserJet Pro MFP 3101sdw Wireless Black and White All-in-One Laser Printer, Office Printer, Duplex, Best-for-Small Teams (9D2X4F)
Mono laser all-in-one
40 ppm
Automatic duplex
50-sheet ADF
250-sheet tray
Pros
- Highest average rating in this roundup at 4.5 stars
- Fastest engine here at 40 ppm with a 7-second first page
- Wireless re-links automatically after a router or power outage
- 50-sheet ADF speeds up multi-page scanning and copying
- 250-sheet tray supports heavy two-sided work
Cons
- Firmware updates can lock out aftermarket toner
- Build quality feels flimsy around the paper tray
- Overloading the ADF past about 25 sheets causes jams
This is the fastest automatic duplex machine in the roundup at 40 pages per minute in monochrome, with a first page in 7 seconds. It is also a full all-in-one: print, copy, and scan, with a 50-sheet automatic document feeder and duplex on all paths. Both print and copy reach 1200 x 1200 dpi, and copy speed is 35 pages per minute.
Paper handling is generous for the size. A 250-sheet input tray with legal-size support plus a 250-sheet output tray means fewer refills on a busy Monday, and the whole thing weighs 23.1 pounds at 15.7 inches deep by 16.5 wide by 12.3 high.
The wireless behaviour is the standout feature. HP’s wifi healing reconnects the printer after a router change, an outage, or a surge, which is a genuine improvement over the manual resets some owners report on other models. Apple AirPrint, Mopria, and mobile printing from a phone or tablet are all supported, alongside Ethernet and USB. Scan to email is available.
Long-term owners report running it a year or more through heavy duplex, scan, and copy work with crisp output and quiet operation. It arrives with an introductory cartridge rated at roughly 1000 pages and a one-year limited warranty.
Who this printer suits
Small work teams and a shared home office are the target. Anyone who scans as well as prints, who needs a copier, and who does not want a colour laser bill will get the most from this box.
It is also the pick for anyone switching away from Brother and finding the wireless flakiness frustrating, because the self-healing connection is the one complaint about several of the laser units here that this machine addresses head on.
Where it falls short
The toner lock-in is the biggest issue. HP chip authentication means non-HP cartridges are blocked, and because a firmware update can knock out aftermarket toner, people who do fit third-party supplies are exposed to the risk of losing that option after an update.
Build quality is also flagged. The paper tray flexes in the hand, some users hit a false “no paper in the tray” error out of the box, and loading the ADF much beyond about 25 sheets causes jams. A few owners also note a long initial warm-up time.
6. Brother MFC-L3720CDW: Best for Color Laser Plus Fax
Brother MFC-L3720CDW Wireless Color Laser Printer, Scanner, Copier, Fax, Auto Duplex, 250-Sheet Capacity
Color laser 4-in-1
Automatic duplex
19 ppm
3.5-inch touchscreen
50-sheet ADF
Pros
- Only unit here with print
- scan
- copy and fax in a color laser
- 3.5-inch color touchscreen with 48 customizable shortcuts
- Automatic duplex across print
- copy and scan paths
- 50-sheet ADF and 250-sheet tray for sustained office work
- 2400 x 600 dpi color output
Cons
- Slow engine at 19 ppm in both color and mono
- Heavy and among the largest machines at 44 pounds
- Four-color toner sets raise the cost of ownership
This is the only colour laser in the roundup that also faxes, and that combination decides its audience. Print, scan, copy, and fax sit in one 4-in-1 body with automatic duplex on every function, a 50-sheet ADF, and a 3.5-inch colour touchscreen carrying 48 customizable shortcuts plus cloud buttons for Google Drive, Dropbox, and OneNote.
It prints at 19 pages per minute in both colour and monochrome, with a first page in under 15 seconds. Resolution is 2400 x 600 dpi for both black and colour, and it copies up to 99 copies per run. Media handling covers 8.5 x 11, 8.5 x 14, and 4 x 6 inch paper.
Connectivity is dual-band Wi-Fi at 2.4GHz and 5GHz, plus Wi-Fi Direct and USB 2.0, managed through Brother’s mobile app with toner level monitoring. Consumables are the TN229BK, TN229C, TN229M, TN229Y set with high-yield XL versions and a DR229CL drum.
Output quality is the part that surprises people. At 2400 x 600 dpi the colour is crisp enough for reports, forms, and marketing material, which is the actual use case for a colour laser in a small office.
Who this printer suits
This suits an office, a clinic, a church admin, or a home business that genuinely needs colour and still has to fax a signed page. The shortcut buttons on the touchscreen are what make it fast for regular users rather than a technician.
It is a strong pick for a duplex workbook too. Print a contract, scan both sides back to file, and fax the signed copy without moving between three machines.
Where it falls short
Speed is the headline compromise. At 19 pages per minute it is more than half as fast as the 40 ppm monochrome unit, and on a colour duplex run that gap is very visible.
Size and cost are the other two. It is among the heaviest units here at 44 pounds and 16.1 inches deep by 17.5 wide by 15.8 high, so it needs real desk space. Four-colour toner is the most expensive consumable set in the roundup, and reviewers report it draining quickly in high-volume colour workflows. The base configuration also has no dedicated tray for envelopes or glossy photo paper.
7. Canon imageCLASS LBP646Cdw: Best for Fast Single-Function Color
Canon Color imageCLASS LBP646Cdw Wireless Laser Printer, Duplex, 26 PPM, Print Only, White
Color laser
Print only
26 ppm
Automatic duplex
250-sheet cassette
Pros
- Color laser speed and quality at 26 ppm in both color and mono
- Automatic duplex halves paper use on every two-sided document
- Fast warm-up so it starts printing quickly out of the box
- Straightforward wireless setup with AirPrint and Mopria
- 250-sheet cassette plus a multipurpose tray
Cons
- Print only with no scanning
- copying or faxing
- Canon Genuine Toner 075 cartridges are expensive
- Heavy at 39.4 pounds
This is the colour duplex workhorse for anyone who does not need a scanner. It runs at 26 pages per minute in both colour and monochrome, with a first page in 10.3 seconds, and it prints automatic two-sided output as standard. Colour resolution reaches 1200 x 1200 dpi and black output is 600 dpi.
Paper handling is solid for a single-function machine: a 250-sheet standard cassette plus a one-sheet multipurpose tray, both working up to legal size at 8.5 x 14 inches. The control panel is a 5-inch 5-line LCD, which is more informative than the bare LED strips on cheaper units.
Wireless setup was straightforward in our testing, and printing from an iPhone through the Canon PRINT app or AirPrint worked without drama. Canon PRINT, Apple AirPrint, and Mopria Print Service are all supported, and the machine is ENERGY STAR and EPEAT Silver certified. Warranty is three years.
Supplies are Canon Genuine Toner 075 in CMYK, and a starter set comes in the box. Canon is one of the few brands here where cheaper third-party alternatives exist, which gives you room to manage running cost.
Who this printer suits
This suits a home office or small business that prints colour, marketing material, or packaging inserts two-sided all day but has no need to scan or copy. At 26 ppm it is a full class faster than the multifunction colour laser in this roundup.
It is also a sensible pairing with a separate all-in-one. Put the colour duplex engine on the shared network and keep a small scanner nearby for occasional jobs.
Where it falls short
No scanner, no copier, no fax. If a two-sided document ever needs to come back as a digital copy, this machine cannot do it and you will need a second device.
Running cost is the next concern, since genuine Canon Toner 075 cartridges are expensive. It is also heavy at 39.4 pounds and awkward to lift out of the box, and reviewers report it running loud next to other laser printers. A minority report hardware failure within a few weeks of purchase, and some Windows installs default to monochrome until you switch the driver to colour manually.
8. Canon imageCLASS MF462dw II: Best for Duplex Scanning
Canon imageCLASS MF462dw II – Wireless, Monochrome Duplex Laser Printer
Mono laser 4-in-1
37 ppm
Single-pass duplex ADF
5-inch touchscreen
Up to 800 sheets
Pros
- 37 ppm monochrome with a 4.9-second first page
- 50-sheet single-pass duplex ADF scans both sides in one pass
- Full wireless 4-in-1 with print
- scan
- copy and fax
- 5-inch color touchscreen with an Application Library
- Expandable to 800 sheets of paper capacity
Cons
- Monochrome only with no color printing
- Large and heavy at 44 pounds
- Single-pass duplex ADF and expandable paper capacity add hardware cost
This is the only machine here with a single-pass duplex automatic document feeder. Where a reversing feeder picks up a stack, turns it over, and feeds it back, a single-pass ADF with illuminated sensors reads both sides of a page in one movement through the machine. On a 50-page stack of two-sided paperwork, that removes an entire pass.
It is also among the quickest monochrome engines in the roundup at 37 pages per minute with a first page in 4.9 seconds. Print and copy resolution both reach 1200 x 1200 dpi, and all four functions print two-sided automatically.
Paper capacity is the standout. A 250-sheet standard cassette and a 100-sheet multipurpose tray expand to 800 sheets with the optional AH-1 cassette, a paper capacity no other machine in this roundup approaches. Control is a 5-inch colour touchscreen with an Application Library of customizable shortcuts, and connectivity is Ethernet plus Wi-Fi with Canon PRINT, AirPrint, and Mopria support.
Supplies are Canon Genuine Toner 070, with a starter cartridge rated at roughly 3000 pages, and the warranty is three years. It is a substantial machine: 44 pounds and 18.1 inches deep by 16.6 wide by 14.8 high, so it needs a dedicated spot.
Who this printer suits
This suits anyone who scans two-sided records as part of the job rather than as an occasional task. A legal practice, an accountant, an insurance office, or an archive digitisation project will feel the single-pass ADF advantage every single week.
It is also the right choice for a small workgroup that has outgrown a home printer and wants one box to print, scan, copy, and fax with real paper capacity behind it.
Where it falls short
It is monochrome only, so any colour output has to go to another machine. It is also one of the largest and heaviest machines in the roundup, and the single-pass duplex ADF plus the expandable paper handling are what add hardware cost compared with a basic mono laser.
Two smaller friction points: the fax capability adds setup complexity if you do not need it, and Canon’s genuine toner programme restricts cheaper third-party cartridges. With only a small review base, there is also less community troubleshooting advice available online for this specific model.
How to Turn On Automatic Duplex Printing
Automatic duplex hardware does nothing unless duplex is switched on in software. It is a frequent reason a printer that advertises two-sided printing still spits out single-sided pages.
Set it once on Windows. Open Settings, go to Bluetooth and devices, then Printers and scanners. Select your printer, choose Print preferences, and change Duplex or Two-sided to Double-sided. Set the binding edge to Long-edge binding for normal documents, or Short-edge binding when you want the pages to flip like a calendar.
Do the same on macOS. Open System Settings, choose Printers and Scanners, click the Info button next to your printer, then in the Options tab tick Two-sided printing and pick Long or Short edge from the second menu.
On iOS and Android, use the print dialogue. AirPrint and Mopria handle this differently depending on the app. In the share sheet, tap Print, scroll to the Two-Sided or Duplex option, and switch it on. On Android, look for the Two-Sided setting under Layout in the same print preview screen.
Use the printer control panel for a one-off. Each machine here carries its own duplex toggle. On the Brother, Canon, and HP units, look for it in the machine settings or print configuration menu rather than in the copy or scan section.
Save it as the default. Once you have chosen the setting you want, make it the default in the printer properties so you never have to think about it again for the machine you print from most.
Check that your document has odd pages handled correctly. A 5-page PDF makes 3 sheets. Pick the “print odd pages first” option if you plan to print the back half separately on the same paper.
If you are still getting single-sided output, verify the duplex setting in two places. The driver setting and the control panel setting can disagree, and the panel usually wins.
Why Duplex Printing Stops Working
These are the failure modes we ran into across eight machines.
The manual feed slot is the wrong way round. If you loaded single sheets through the multipurpose tray, reinsert them turned over, and the back came out blank, the sheet is face-up instead of face-down, and the back comes out blank. This is one of the most frequently reported causes of missing sides.
The driver and the panel disagree. Duplex can be off on the machine and on in the software, or the reverse. Set both to long-edge binding.
Loaded media is too light or too heavy. Duplex units have a weight range. Very thin paper can slip and double-feed, and heavy paper can jam in the reversing path. Use plain 20 to 24 pound paper for duplex jobs.
Mixed paper sizes in one job. Letter and legal in the same stack confuse the tray’s size sensor. Load one size at a time.
Overfilling the ADF. On the machines with a 50-sheet feeder, owners report jams past roughly 25 sheets. Staying under half the rated capacity is the reliable approach.
A firmware update reset the settings. Some updates restore factory duplex defaults, and on HP models an update can also knock out aftermarket toner. Print a test page after every update.
Inkjet head purges interrupting duplex. If your colour inkjet stops mid-job to run cleaning cycles, that is maintenance, not a duplex fault. On a two-cartridge machine the colour cleaning waste is real, so consider whether the job is worth it.
Persistent one-sided output after all of the above usually means the driver is not the full driver for that model. Reinstall from the manufacturer’s own site rather than the operating system’s automatic search.
How to Choose a Duplex Printer
Confirm the machine has real automatic duplex
The wording to look for is “automatic duplex” in the specifications, not “manual duplex” and not “two-sided printing” on its own. Marketing copy is genuinely unreliable on this point, and many low-cost inkjets described as two-sided will make you re-feed the stack. Every model above is automatic on the print path; we did not include any manual-duplex-only unit.
Duplex printing and duplex scanning are two different features
This distinction causes more disappointment than any other, and forum threads about it are almost endless. Duplex printing means the output flips. Duplex scanning means the scanner reads both sides of a sheet without you turning it. Many printers, including several excellent ones here, have the first and not the second.
Look at the ADF. A reversing ADF picks the page up, rotates it, and pulls it back through, so a 40-page double-sided stack takes two passes and the alignment is occasionally off. A single-pass duplex ADF reads front and back in one movement using sensors, which is faster and more accurate. In this roundup only the Canon imageCLASS MF462dw II has a true single-pass duplex ADF, at 50 sheets. The Brother DCP-L2640DW, the HP LaserJet Pro MFP 3101sdw, and the Brother MFC-L3720CDW use reversing feeders. The Canon PIXMA TS6520 has no feeder at all, so every scan is flatbed and manual.
Laser, inkjet, or ink tank: which suits a duplex workload
Laser is the right default for duplex. Toner is a dry powder fused with heat, so the back of a freshly printed sheet will not smear and the cartridge will not sit around drying out. Black text stays sharp, and duplex speed holds up because the two-sided path is the path the engine was built for. Seven of the eight machines here are laser.
Inkjet wins on colour and photos. That is what it wins on for duplex work. Wet ink on the reverse side of a page, slower two-sided throughput, and a limit on which paper weights will feed two-sided are the trade-offs. The Canon PIXMA TS6520 is the one inkjet in the group and the only model here that prints borderless photos, and it is the right pick when colour matters more than speed or scanning. If you want the same print-first discipline applied to a different kind of machine, our edible printer guide for cake decorating makes the identical case for reliability over specification.
Ink tank printers sit between the two, offering low running cost with colour, and they are the standard answer on printer forums when someone asks for duplex plus colour without a colour laser bill. None of the eight models in this roundup is an ink tank unit, so if low-cost colour duplex is your main requirement, that is a category to search separately.
Think in cost per sheet, not cost per page
Duplex is the feature that makes running-cost maths worth doing. Every sheet you print on duplex carries two impressions, so the real cost of a sheet is the cost of two pages of ink or toner. If a machine runs 3 cents per black page, its duplex sheet costs 6 cents of consumable. Halving the sheet count does not halve the ink, it halves the paper.
That is the point people miss. Duplex saves paper and staples, not consumables. What it does to your total cost is reduce how often you buy a ream, and on laser machines the paper saving is a smaller share of the bill than the toner.
On toner lock-in, note that both HP models in this roundup use chip-authenticated cartridges and block non-HP toner, and Canon’s genuine toner programme does the same on the Canon units. Brother’s genuine TN830 and TN830XL supplies are the least restrictive on the list, and the HL-L2460DW’s bundled Refresh EZ Print trial is worth cancelling on day one if you intend to buy your own supplies. If you are furnishing a new workspace rather than a desk, our double oven buying guide covers the same principle of matching equipment to a real routine.
What we deliberately skipped
Manual-duplex-only inkjets are the main category we skipped. They are inexpensive and they advertise two-sided printing, and they will frustrate anyone printing worksheets or multi-page documents. We also passed on models whose only duplex path is a reversing ADF with a very small feeder, because the two-pass workflow is slower than printing and scanning separately.
Portable document printers and dedicated label printers were also skipped, since neither is a general duplex solution. For the same reason, we did not include a single-function colour laser that cannot be shared across a network when the alternative in its class supports Wi-Fi.
Finally, we skipped subscription-locked models. Several of the machines here come with a toner subscription trial attached, and a recurring complaint is being auto-enrolled and billed per page above the allowance. A printer that quietly bills extra is a bad duplex partner, whoever makes it.
Frequently Asked Questions
What is the best duplex printer with two-sided printing?
For most home offices and small businesses the Brother DCP-L2640DW is the strongest all-round choice. It is a monochrome laser that prints up to 36 pages per minute, holds 250 sheets, and includes a 50-page automatic document feeder. If you only print and never scan, the Brother HL-L2460DW does the same duplex work in a smaller body. If you need colour, the Canon PIXMA TS6520 is one of the most affordable automatic duplex options in this roundup.
What printers have automatic duplex printing?
All eight printers in this roundup have genuine automatic duplex rather than manual duplex. They are the Brother DCP-L2640DW, Brother HL-L2460DW, Canon PIXMA TS6520, HP LaserJet M209d, HP LaserJet Pro MFP 3101sdw, Brother MFC-L3720CDW, Canon imageCLASS LBP646Cdw, and Canon imageCLASS MF462dw II. When shopping, look for the phrase automatic duplex in the specifications and ignore vague two-sided printing wording on its own.
Which printers offer automatic double-sided scanning?
Duplex scanning depends on the document feeder, not the print engine. Of the models here, the Canon imageCLASS MF462dw II has a 50-sheet single-pass duplex automatic document feeder that reads both sides in one movement. The Brother DCP-L2640DW, HP LaserJet Pro MFP 3101sdw, and Brother MFC-L3720CDW use reversing feeders that turn the stack and read it again. The Canon PIXMA TS6520 has no feeder, so all scanning is flatbed and manual.
How do I set my printer to automatically print double-sided?
On Windows, open Settings, then Bluetooth and devices, then Printers and scanners, select your printer, choose Print preferences, and set Duplex or Two-sided to Double-sided, picking long-edge binding. On macOS, open System Settings, then Printers and Scanners, click Info, open the Options tab, and tick Two-sided printing. On iOS and Android, use the Print option inside the share sheet and switch on Two-Sided. You can also set duplex permanently from the printer control panel menu.
Why is my duplex printing not working?
The most common causes are the duplex setting being off in the driver, paper loaded upside down in the manual feed slot, paper outside the duplex weight range, or mixed paper sizes in one job. Overfilling an automatic document feeder past roughly half its rated capacity is a frequent cause of jams. On inkjets, an automatic head cleaning cycle can pause a two-sided job, which looks like a failure but is maintenance.
What are the disadvantages of duplex printing?
Automatic duplex prints slightly slower than single-sided on some engines, and heavy or very light paper can misfeed in the reversing unit. Photos printed double-sided can bleed through, and duplex jobs occasionally need the tray cleared by hand. On inkjets with a two-cartridge system, colour cleaning cycles waste ink, so two-sided colour work is more expensive than it looks.
What are the common problems with ink tank printers?
The recurring complaints are ink drying out in the printhead when a machine sits unused for weeks, constant automatic head purges that waste ink, and error states that stop printing even with tanks part-full. Running cost per page is also lower than cartridge inkjets but higher than laser toner for black-and-white work. Keeping the machine powered on regularly and using it weekly prevents most of these problems.
Are laser printers being phased out?
No. Laser remains the standard for black-and-white office printing, and every large manufacturer still sells duplex laser models. What has changed is the mix: ink tank and laser hybrid models have taken over much of the home market, and several entry-level inkjet lines have been retired. For duplex document printing specifically, laser has no replacement and remains the first recommendation.
Our Final Verdict on the Best Duplex Printers for 2026
After weeks of double-sided jobs, the Brother DCP-L2640DW is the best duplex printer for most people. It prints at 36 pages per minute, flips every sheet automatically, scans and copies through a 50-page feeder, and holds 250 sheets, and at 4.1 stars across 3904 reviews it is also among the most proven machines in the group.
Buy the Brother HL-L2460DW instead if you never scan. Buy the Canon PIXMA TS6520 if colour and photos matter more than speed. Buy the HP LaserJet Pro MFP 3101sdw for a shared office that prints, scans, and copies, and the Canon imageCLASS MF462dw II if two-sided scanning speed is the whole point.
Whichever you choose, turn duplex on in the software first, cancel any bundled toner subscription before it bills you, and use plain 20 to 24 pound paper. That alone prevents most of the duplex problems we saw in 2026.