The catch
Canon imageFORMULA RS40
Wi-Fi placement isn't an option.
Side by side
If a single machine has to handle both larger document batches and wireless photo sharing, the FF-680W is the better pick. The RS40 makes sense as a fixed USB photo station, provided its 40-photo batch and CaptureOnTouch workflow suit your archive.
Before you buy
Canon lists 40 photos and 60 paper sheets, and Epson lists 36 photos below 0.23 mm and 100 sheets of 80 gsm paper. A household archiving both loose prints and old paperwork may therefore favor Canon for photo capacity and Epson for document capacity.
Where this comes from
Keep the capacity units apart. In its marketing Epson rounds the photo batch to 35, whereas the technical table gives 36 along with a thickness condition.
The catch
Wi-Fi placement isn't an option.
The catch
Thickness determines photo capacity, and originals that are damaged or unsuitable call for special handling.


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Photo batches, handwritten backs and ordinary paperwork all come into play here. Wireless placement and document capacity can count for more than a photo-speed headline.
If a single machine has to handle both larger document batches and wireless photo sharing, the FF-680W is the better pick. The RS40 makes sense as a fixed USB photo station, provided its 40-photo batch and CaptureOnTouch workflow suit your archive.
Which one fits
Each is built for supported batches of loose photos.
A reload is avoided by the 100-sheet paper capacity of Epson.
Wi-Fi comes with the FF-680W.
A flatbed or overhead workflow is the right choice here. A feeder does not suit it.
In practice
Canon lists 40 photos and 60 paper sheets, and Epson lists 36 photos below 0.23 mm and 100 sheets of 80 gsm paper. A household archiving both loose prints and old paperwork may therefore favor Canon for photo capacity and Epson for document capacity.
Keep the capacity units apart. In its marketing Epson rounds the photo batch to 35, whereas the technical table gives 36 along with a thickness condition.
Single-pass duplex capture on both helps preserve dates or names written on the back of suitable loose prints. Epson adds an app workflow for voice and text stories. It can be useful while a relative is still around to explain the scene, but it does not take the place of checking each saved image and annotation.
Scan both faces if the reverse carries information. A bound album or an unsuitable, damaged print should not go into either machine.
600 dpi optics are specified for both, and each can produce 1200 dpi interpolated output. A bigger output file does not mean twice the captured optical detail. For fragile or irreplaceable prints that fail the feeder rules, look into a flatbed workflow.
No matched image-quality or restoration test has been run. Stick to each manufacturer’s accepted-media rules.

Canon, imageFORMULA RS40
Loose photos and paper forms both get processed from one USB-connected computer.

Epson, FastFoto FF-680W
Digitize loose family photos along with the notes written on their backs, and use the same feeder for documents afterward.
Spec by spec
| Spec | Canon imageFORMULA RS40 | Epson FastFoto FF-680W | In practice |
|---|---|---|---|
| Paper-sheet capacity | 60 sheets | 100 sheets at 80 gsm | In an archive that mixes photos and paper, document capacity may be the limit. |
| Photo batch specification | Up to 40 photos | 36 photos below 0.23 mm, marketing says 35 | Photo thickness and how you prepare the photos affect usable batch size. |
| Connection | USB | USB and Wi-Fi | The Epson can be placed with no USB cable running to the receiving host. |
| Photo story tools | CaptureOnTouch photo corrections | FastFoto app supports voice and text additions | With Epson, explanations can be kept along with the scanned image. |
| Optical resolution | 600 dpi | 600 dpi | A 1200 dpi output claim, made for both, is not the same as 1200 dpi optics. |
Trade-offs
Change of plan
Go with Epson FastFoto FF-680W. 100-sheet paper capacity and Wi-Fi are what the FF-680W adds.
Go with Canon imageFORMULA RS40. You may find the RS40 enough, without paying for a wireless workflow.
Neither model fits. Leave the album as it is and use a flatbed or overhead scanner.
Decision guide
Pick the FF-680W if the same machine has to handle larger document batches and wireless photo sharing. Pick the RS40 as a fixed USB photo station if its 40-photo batch and CaptureOnTouch workflow suit your archive.
Canon lists 40 photos and 60 paper sheets, while Epson lists 36 photos under 0.23 mm and 100 sheets of 80 gsm paper. So a household archiving both loose prints and old paperwork may like Canon's photo capacity but Epson's document capacity. Keep the capacity units apart. Epson's marketing rounds its photo batch to 35, whereas the technical table gives 36 with a thickness condition.
Single-pass duplex capture on both helps preserve dates or names on the back of suitable loose prints. Epson also offers an app workflow for voice and text stories. That is handy while a relative can still explain the scene, but it doesn't replace checking each saved image and annotation. When the reverse carries information, scan both faces. Neither machine should be fed a bound album or an unsuitable damaged print.
Each specifies 600 dpi optics and can produce 1200 dpi interpolated output. A larger output file doesn't mean twice the captured optical detail. If prints are fragile or irreplaceable and don't meet the feeder rules, look into a flatbed workflow. No matched image-quality or restoration test was performed. Follow each manufacturer's accepted-media rules.
By the numbers
What we found across the document scanners we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Canon imageFORMULA RS40 |
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| Epson FastFoto FF-680W |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

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