Canon R40 scanner Twain error

[guthrie]

I have an R40 scanner, love it - except --!!

after about a day or so of working fine, any usage gives the error:

"An error has occurred within the TWAIN driver, [Error 80FF0001]"

The only solution seems to be to reboot windows, and then all is fine again, for awhile. (Windows-64)

This basically makes it unusable - I can't reboot every time I need to use it.

Emails and calls to Cannon technical support have not helped. After two rounds of the typical "reinstall...", they sent some patch, which did not help. This seems to be a known problem in user reports and the Cannon support staff, but no solutions.

Anyone have any hints for this?

[jbunshaft]

Well, that didn't work. But still, thank you for sharing. It was worth trying.

[Oldwizard]

Sorry to hear that, hope it manages to help somebody.

[jbunshaft]

I hope so. And I hope someone from Canon jumps in quickly to help me get this thing running again. Appreciate your suggestion!!

[FrogMan]

Same issue here after moving a Canon scanner from a stable Windows 10 desktop computer to a new Windows 11 computer. Worked for a couple days, then got the 80FF0001 Error, re-installed the driver, worked for a couple of days, and got the error again. Any other suggestions would be appreciated. 

[guthrie]

Two ongoing threads for this here in Canon forums - no response or remedy from the company.

[olsenii]

I have the same issue. It popped up for me at the last Windows update. Based on JayC1's comment, I just tried to deactivate Windows Defender Firewall, and all of a sudden I can scan again. This is clearly not a longterm solution and Canon must work with Microsoft to update their driver to work through the firewall

[Cannert]

I called Canon support after having this problem following an upgrade to Win 11. They instructed me to run the "Restoration Tool for Windows Registry" found on the Drivers and Downloads page under the Utilities tab.  The "Readme" file included explains that it solves a Windows registry inconsistency that can keep the scanner from being recognized by Windows.

So far, no further issues for me.

[guthrie]

As reported earlier - this is their standard (FAQ) response to this. I had also done this, it reported an error and fixup, and as always, things worked for a short time, and then back into the failure until-reboot loop.

[Oldwizard]

I made another discovery regarding this recurring issue this week. There are two computers with the software suite installed in our office. When one has the twain driver error, connecting the scanner to the other computer, performing a scan, then returning to the other computer then the error is resolved. This seems like a driver problem in communicating with the scanner, performing a scan with the other computer seems to wake the scanner up and it operates normally. So many folk seem to have this issue Canon ought to be able to reproduce it and fix it.

[lmuzzi]

I have the same issue and rebooting is the ONLY thing that works.  As mentioned in the original post, this makes the scanner pretty much unusable, so I'm about to return it.