Canon i-Sensys MF635Cx

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Stock Quote: CAJ 21,17 -0,15 -0,70%

Better than what your boss offers you at work

With the Canon i-Sensys MF635Cx, the manufacturer undoubtedly enters a new era in colour laser multifunction printers for the home office.

Mainly, colour laser multifunction printers are often a noisy business, especially when the fans are still running for a long time even though the activity is long over. Differing from, the Canon i-Sensys MF635Cx is an exception: in the test it quickly switches to sleep mode after printing, scanning or copying and is then barely perceptible. In this respect, the device doesn’t interfere even if you have it on or next to your desk.

One the other hand, …

… the paper supply is too small for the enormous throughput. Besides, the follow-up costs are also too high here. Nevertheless, the Canon i-Sensys MF635Cx model supports the everyday work in the home office. Self-employed people who often only need one to three printed pages, precisely fitting and at acceptable page prices.

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With the Canon i-Sensys MF635Cx multifunction printer, the manufacturer is thinking of applications in small businesses that produce an average of 250 to 2500 prints a month. Here the multifunction printer is usually integrated into a network. The MF635Cx with Gigabit-LAN and n-WLAN offers two possibilities for this. Although the Canon model comes with a USB interface as a local connection.

The strength of the Canon i-Sensys MF635Cx’s focus on network operation can also be seen right after switching it on for the first time. The setting routine immediately wants us to set up a password for the user interface (UI) via the web browser. From here, you can not only manage the device but also define buttons that you load onto the multifunction printer.

Touch Panel

Even so, the touch control panel can be tilted, but sometimes reacts somewhat idiosyncratically to finger pressure. If you want to scroll from the start page to the next page, you must hit the right arrow correctly. Otherwise, the app will accidentally open for an attached USB medium.

Besides, we only have access to all settings and functions via the touch panel if we enter the system ID. It is 7654321 in the factory settings – both for the “System Manager ID” and for the PIN. However, this setting makes sense because it prevents users from making changes to the device even though they are not authorised to do so.

Hence, you can also access the Canon i-Sensys MF635Cx via the network from a smartphone or tablet. The ways are manifold with Apple Airprint, Google Cloud Print, Mopria and the manufacturer’s app “Canon Business Print”.

Factory Reset

Thousands of passwords and all with a different format make you forget your password quickly. Unfortunately, you can’t reset it yourself, but you have to contact Canon. However, I tend to do a “factory reset” and write the password on a post-it next time and put it behind the printer.


  1. On the home screen operation panel, press the right arrow.
  2. Press Menu
  3. Go for Management Settings
  4. Initialise All Data/Settings
  5. Press Yes
  6. Press Yes, again
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Type: 4-in-1 A4 multifunction laser printer
Connectivity: Wi-Fi, USB 3.0, USB Type-B, NFC
Data storage slot: USB
Warm-up Time: 13 secons from power on
First Print Out: 10.9 secons (mono), 12 seconds colour.
Print speed: 18ppm (fast colour), 27 ppm (black & white) or 11ppm double-sided
Main paper tray capacity: 250 sheets
Print quality: 1,200 x 1,200 dpi
Scan quality: 9,600 x 9,600 dpi
Touch Screen: 12.7cm
Apple AirPrint: Yes
Size/Weight: 451mm x 460mm x 400mm (W x D x H); 26.5kg
Installation Space: 651mm x 1,210mm x 776mm

The Canon i-Sensys MF635Cx should automatically restart after the factory reset. Hence, all default factory settings should get restored. Keep in mind that you have to reconfigure your printer after these steps.


A set of four toner cartridges is included and Canon has increased their yield, so you can expect to churn out a claimed 6,300 black and white pages, or 5,000 colour documents before running out of toner. Nevertheless, the original toners are comparatively costly. In any event, you can solve this with TonerPartner.


The Canon i-Sensys MF635Cx is a fully-featured 4-in-1 that’s very well suited to a busy small to medium-sized business. With fast printing and double-sided scanning, it should keep your (home)-office printing promptly.

It is the perfect colour laser MFP with unsurpassable price/performance ratio and therefore unreservedly recommendable.

See also other reviews on tech gadgets such as ReMarkable.

Canon Homepage



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