The Epson WorkForce Pro WF-7840 is an all-in-one inkjet printer designed for a small or home office. It's a wide-format printer capable of duplex printing 13" x 19" Tabloid-size sheets. It features both a flatbed and ADF capable of dual-pass duplex scanning Tabloid-size sheets as well. There are two input trays as well as a rear feeder holding 550 sheets in all. Connectivity options include Ethernet and USB (both to the computer and for external storage devices), Wi-Fi and Wi-Fi Direct, and support for Apple AirPrint and Mopria Print Service.
Our Verdict
The Epson WorkForce Pro WF-7840 is good for family use. It has a good ADF-equipped scanner that automatically scans double-sided Tabloid-size sheets. It has a low cost-per-print for both color and black documents and great color accuracy for casual photos. Sadly, its photo quality is only okay, but it's fine for occasional photo printing.
- Easy access to paper jams and ink cartridges.
- Good printing speed.
- Outstanding scanner features.
- Low cost-per-print.
- Wide-format printing and scanning.
- Low page-yield for black and color prints.
- Slow to print first page.
The Epson WorkForce Pro WF-7840 is good for small or home offices. It feels well-built and has a fantastic scanner that can perform duplex scanning and faxes. It prints black-only text documents fairly quickly, although the first page takes a while to print. It's affordable to print in both black and color ink; however, the black page yield is very low, so you may need to replace the cartridge often, depending on your print load.
- Easy access to paper jams and ink cartridges.
- Good printing speed.
- Outstanding scanner features.
- Low cost-per-print.
- Wide-format printing and scanning.
- Low page-yield for black and color prints.
- Slow to print first page.
The Epson WorkForce Pro WF-7840 is great for students. Although you may need to replace the ink often if you print a lot, the black ink cartridge is relatively affordable, which helps keep the cost-per-print low. It has a fantastic scanner, and its connectivity options are also great, making it easy to access. While the first page takes a while to print, once it gets going, black-and-white documents print quickly.
- Easy access to paper jams and ink cartridges.
- Good printing speed.
- Outstanding scanner features.
- Low cost-per-print.
- Wide-format printing and scanning.
- Low page-yield for black and color prints.
- Slow to print first page.
The Epson WorkForce Pro WF-7840 is good for black-and-white printing. Documents look crisp and sharp, except for small details, which are fuzzier. Although the printer yields a low number of black text pages, its cost-per-print is still fairly low. However, if you print large documents frequently, you may need to replace the black cartridge often. There are high-yield and extra-high-yield cartridges available, but they are more expensive. Also, it's fast at printing black-only text pages.
- Easy access to paper jams and ink cartridges.
- Good printing speed.
- Outstanding scanner features.
- Low page-yield for black and color prints.
- Slow to print first page.
The Epson WorkForce Pro WF-7840 is decent for casual photos. Although some graininess and banding are present, printed photos look decently detailed. The colors are accurate enough for home use. It supports most photo sizes except for 2" x 3", and it's fairly affordable to print photos in color.
- Fairly detailed photos.
- Colors look vibrant and saturated.
- Can't print 2" x 3" photos.
Changelog
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Updated May 06, 2026:
We corrected a mistake in the intro to specify that this printer includes dual-pass duplex scanning rather than a single-pass process. We also made sure the rest of the review accurately stated this information.
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Updated Oct 23, 2024:
Minor text changes to mention the HP OfficeJet Pro 9730e as an alternative wide-format printer with better page yield in the Cartridge section.
- Updated Sep 11, 2024: Minor text changes to add mention of the Epson Expression Photo HD XP-15000 as an alternative with a wider color gamut in the Color Gamut section.
- Updated Jun 21, 2024: We've updated the review for clarity and accuracy.
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Differences Between Sizes And Variants
We tested the Epson WorkForce Pro WF-7840. There is one other variant, the Epson WorkForce Pro WF-7820. We expect this model to perform the same, as the only difference is the number of input trays: the WF-7840 has three paper trays, which hold 550 pages total, while the WF-7820 has only one, which holds 250 pages.
See our unit's label here.
Popular Printer Comparisons
The Epson WorkForce Pro WF-7840 is a feature-rich, all-in-one inkjet printer. It's extremely versatile, as it can print and scan Tabloid-size sheets, and it has outstanding scanner features, including automatically processing multi-page documents, duplex scanning, and faxing. It also has three adjustable paper trays, which is great if you regularly print many pages in different paper sizes. The major pain point is its page yield, which is quite low. Thankfully, there are high-yield and extra-high-yield cartridges available. These bring the cost-per-print down to be competitive with more expensive wide-format printers, like the HP OfficeJet Pro 7740.
Also check out our recommendations for the best home printers, the best office printers, and the best inkjet printers.
The HP OfficeJet Pro 7740 and the Epson WorkForce Pro WF-7840 are both wide-format printers. The HP is a better choice if scanning quickly is a priority for you. Its ADF can duplex scan double-sided documents in a single pass, which is faster than Epson's ADF, which requires two passes. However, the Epson has much better color accuracy and a physical keypad next to its display screen, making it easier to fax if needed.
The Brother MFC-J995DW is better overall than the Epson WorkForce Pro WF-7840. The Brother has a much better cartridge system that yields many more pages, resulting in a significantly lower cost-per-print. It also prints sharper documents and pictures. However, if you need to scan many multi-page documents, the Epson is a better choice as it can perform duplex scanning. It is also capable of printing and scanning up to Tabloid-size sheets, which is great for offices that require a wide-format printer.
While the Epson WorkForce Pro WF-7840 and the Epson WorkForce Pro WF-4830 are all-in-one inkjet printers designed for small or home office use, they target different use cases. The WF-7840 is a wide-format printer capable of printing and scanning Tabloid size sheets. Unless you need this feature, the WF-4830 is better for most people, as it offers similar or better performance for all other use cases.
The Epson EcoTank Pro ET-5850 is a much better printer for almost every use case than the Epson WorkForce Pro WF-7840. While these are all-in-one color inkjet printers, the ET-5850 uses a supertank reservoir, yielding far greater pages. It prints faster and is more color-accurate, and its ADF-equipped scanning processes documents much quicker. However, the WF-7840 is a wide-format printer with an ADF-equipped scanner capable of duplex scanning Tabloid size sheets. Thus, if your workflow requires printing and scanning Tabloid-size documents or photos, then the WF-7840 is the obvious choice.
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