topic Re: imageFORMULA RS40 not connecting in Scanners

imageFORMULA RS40 not connecting

bear211 — Sat, 21 Dec 2024 23:44:40 GMT

I have a imageformula RS40 that's not connecting for me. I'm getting a "cannot find scanner check the power and cable" message.

- I checked the device manager, drivers are up to date and appear to be connected.
- Made sure the USB cable is connected, and connected firmly. It's the cable that came with the scanner.
- Device powers on.
- Shutdown the software completely, and rebooted the software,
- Rebooted my Computer.
- Made sure Windows is up to date.
- Ran the RepairReg.exe tool and rebooted the computer.

Re: imageFORMULA RS40 not connecting

Sharshe09 — Sun, 22 Dec 2024 00:37:53 GMT

I also had the exact same issue. I had purchased the scanner in 2022. I tried all the things you tried. I had purchased the scanner through Amazon. I also purchased the extended protection. I contacted Asurion who is responsible for the extended protection. I sent it in to be repaired, they were unable to repair it. Amazon refunded the full price of the scanner. I loved the scanner, so I replaced it with the exact same scanner.

Re: imageFORMULA RS40 not connecting

blink2210x — Tue, 24 Dec 2024 10:42:14 GMT

Hi,

I have exactly the same issue, tried all the same things. Even got the printer swapped out by Amazon and the replacement is doing the same thing. I can see the scanner in the device manager but the software just doesn't recognise that it's attached. Weird thing is, the first one i got did work. I managed to scan a bunch of photos but now i'm totally at a loss to why it's no longer working.

Did you manage to get yours working yet?

Re: imageFORMULA RS40 not connecting

shadowsports — Tue, 24 Dec 2024 16:30:26 GMT

Greetings,

@Bear211, since this is your topic, it would be helpful if you told us the version and build of the operating system you are using the printer with? Is this a new install, did the scanner ever work?

Software and drivers for your device can be found here:

Canon Support for imageFORMULA R40 Office Document Scanner | Canon U.S.A., Inc.

To help others, its very difficult to provide solutions when multiple users are posting to an individual's topic. Since user environments can vary, its best if you start your own topic so your issue receives the visibility and support it deserves. It's also not possible to mark a post as "solved" unless it's your own. Thanks in advance.

Re: imageFORMULA RS40 not connecting

bear211 — Tue, 24 Dec 2024 22:32:53 GMT

Windows 11 Home build 26100.2605. When I first got it, and installed everything, everything worked. The only thing that changed, was I got a Windows 11 update.

Re: imageFORMULA RS40 not connecting

bear211 — Tue, 24 Dec 2024 22:33:37 GMT

No, still having the same issue

Re: imageFORMULA RS40 not connecting

bear211 — Tue, 24 Dec 2024 22:34:09 GMT

Windows 11 Home build 26100.2605. When I first got it and installed everything, everything worked. The only thing that changed, was I got a Windows 11 update.

Re: imageFORMULA RS40 not connecting

bear211 — Wed, 25 Dec 2024 11:28:54 GMT

I just got it to start working. This is what I did. I ran RepairReg.exe.
Under: C:\Program Files (x86)\Canon Electronics\CaptureOnTouch\Tools

Once it runs and fixes any issues, unplug the scanner from your computer and reboot your computer. Once your computer is up and running, replug it back in, and turn it on.

I had extra steps because I did this before, but didn't do as I outlined. So I had to delete the app and drives from my computer, reboot, and reinstall everything, which didn't fix it, but it allowed me to run RepaiReg.exe and have it repair it again.

Hope this helps

Re: imageFORMULA RS40 not connecting

bear211 — Wed, 25 Dec 2024 11:30:48 GMT

So again, just run RepairReg.exe> Under: C:\Program Files (x86)\Canon Electronics\CaptureOnTouch\Tools> Once it runs and fixes any issues, unplug the scanner from your computer and reboot your computer. Once your computer is up and running, replug it back in, and turn it on.

Re: imageFORMULA RS40 not connecting

Sharshe09 — Wed, 25 Dec 2024 17:38:03 GMT

Same here - checked to make sure I had the newest driver. This started right after the Windows update. Worked fine before that. Replaced scanner with the same exact one. I'm crossing my finders. The new scanner just came. I'll be trying it out later today

Re: imageFORMULA RS40 not connecting

Sharshe09 — Wed, 25 Dec 2024 17:47:56 GMT

I ran RepairReg.exe> Under: C:\Program Files (x86)\Canon Electronics\CaptureOnTouch\Tools>. It said it found no issues. I am beginning to believe that it is Windows 11 update has caused the problem. I'm going to use it today and see how it does. If I get the same message, I guess I will be looking at buying a different model Canon Scanner

Re: imageFORMULA RS40 not connecting

blink2210x — Thu, 26 Dec 2024 16:36:15 GMT

Check out similar posted issue by hfrost. Their instructions fixed my issue (open file location where the program shortcut sits and go to tool. Launch the system config and change Thin client mode from disabled to Citrix:Twain Redirection)

good luck!

Re: imageFORMULA RS40 not connecting

BigDaddyScottyK — Thu, 16 Jan 2025 23:02:01 GMT

I had the same issue. I'm running Windows 11 24H2 26100.2894. Ran the main installer, no luck. Ran the registry fix tool, no luck. Downloaded and ran the separate Twain driver (RS40_Driver_V.1.3.12402.22001forWindows.zip) and then everything worked!

Hope this helps someone.