The Canon imageFORMULA R40 Office Document Scanner is one of the best scanners available for home use. It comes in a compact form that makes it easy to carry around until you find the perfect spot for it in your home office.

It’s also made by one of the most trusted brands that pay a lot of attention to the quality of their products. Is the Canon imageFORMULA R40 a document scanner that will fulfill your needs?

Let’s hop in and find out.

Canon imageFORMULA R40 Review




11.14″ x 9.9″ x 9.6″



Our Rating

Canon imageFORMULA R40 Overview

Canon imageFORMULA R40 Document Scanner for PC and Mac

Canon imageFORMULA R40 Document Scanner is a lightweight but powerful and fast scanner designed to handle many document types while still being reasonably priced. While this scanner has a couple of downsides, our belief is that Canon succeeded in making a compact yet capable document scanner that can handle all of your scanning tasks with excellent scores.


This very versatile document scanner comes with a lot of scanning software that will make your scanning tasks easier and faster. This includes the Canon CaptureOnTouch, and the OCR software, Readiris PDF, which allows you to edit your PDF files, convert other files to PDF files, and much more.

Along with Readiris PDF, you also get Cardiris. Cardiris is a business card scanning software that allows you to scan business cards, export them, and also improve data recognition. However, Mac users will not be happy to hear that Cardiris is only available for Windows users.

If you wish to save your documents in a cloud service like OneDrive, Dropbox, or Google Drive, Canon imageFORMULA R40 has got you covered. This can save you memory on your device and safely store your documents.

Canon imageFORMULA R40 has a 60-sheet Automatic Document Feeder, Auto Page Size Detection, Auto Color Detection, and many other similar features that are expected to be found on a document scanner at this price point.

However, where imageFORMULA R40 excels is the ease of use, straight out of the box. The setup is simple; connect the scanner to your device via a USB cable (it’s included in the box) and you are good to go.

The major downside to the Canon imageFORMULA R40 is the lack of Wi-Fi, NFC, or Bluetooth connectivity. The only connectivity option is via USB 2.0, and if that doesn’t work for you, our recommendation is to check out other options, like the Brother ADS-1700W or the Canon imageFORMULA R50.


Now we’ve come to the part where the Canon imageFORMULA R40 excels as a compact document scanner, and that is the most important factor you think about before choosing a scanner. 

The overall OCR accuracy is pretty amazing, with the only issue being slightly poorer photo scanning. The scanned documents, however, look amazingly accurate. This document scanner has a maximum dpi resolution is 600, which is pretty good for a scanner that is this small. You can also change the dpi resolution in the settings, from 600 down to 100dpi if you prefer faster scanning. 

Speaking of fast scanning, Canon imageFORMULA R40 is one fast document scanner. It can scan up to 40 ppm, which makes this scanner one of the fastest in this price range. 


The Canon imageFORMULA R40 is a very capable document scanner that can handle many document types and will satisfy the needs of most users. However, if you need a Wi-Fi or NFC-enabled document scanner, then the Canon imageFORMULA R50 is probably the better option. 

Those who won’t see a problem with only the USB connectivity being available will be pleased to know that the Canon imageFORMULA R40 is a scanner that provides excellent performance, especially when it comes to scanning B&W documents.