03-10-2014 04:18 PM
Ever since I upgraded from Windows 8.0 to 8.1, the scanner function will not work on my Canon Imageclass D420 printer. I have installed the latest "8.1 compatible" drivers for the D420 and the MF Toolbox software, but I am still getting error messages in Windows stating that the drivers aren't working. I also tried making the Toolbox software work in compatibility mode for Windows 8, but that doesn't work either. Any suggestions?
Thanks
08-03-2014 02:43 PM
Thanks for the suggestions, I have tried all that was listed. The uninstalled all other printers, and made sure the twain file was cleaned out again, then reinstalled with the selective start up. It prints, just won't scan. Toolbar clocks then says nothing is connected. Any more suggestions or do I need to get on the phone too?
09-18-2014 03:50 AM
Thanks for your reply. I'll have to check that out. I looked at my twain folder and have two listed which is odd.
Attached is a screen shot.
So should I delete both of those? And reinstall the entire driver. If something is wrong with this, how did it happen in the first place?
So basically I don't know if there should be two folders or if something is wrong what steps do I need to take to correct this.
Sorry for the late reply, thanks for your help.
09-18-2014 05:51 PM
I would suggest delete everything in that twain32 folder. Except .ds file probably wouldn't let you delete it then it's ok.
Then Remove MF4800 printer from Devices and Printers, replug usb cable, Windows should reinstall driver automatically. Expecting new MF4800 folder show up.
Then try toolbox and scan again.
Good luck!
04-01-2015 10:53 PM
This procedure was followed and used successfully for an imageCLASS D480 multi-function scanner/printer, too. I'm running the latest version of MS Windows 8.1 So far the Toolbox software allowed me to perform 2 scans - one as a PDF and one as a JPG.
06-24-2015 07:36 AM
Hi,
I have tried given in this forum as well as a few additional things that Canon support sent to me over email. However, nothing has worked so far. Here is what I have done so far
1. Followed the instructions in the forum for installing drivers which includes multiple restarts for Windows 8.1 computer
2. Set the MF Toolbox to run as Administrator
3. Set RPC Locator service in Windows to start automatically
4. Change the USB port which was used for the printer
5. Tried the Scan option in Devices and Printers but it does not bring up any dialog.
6. Talk to Canon technical support
The scanner works intermittently - typically after a re-install/restart (sometimes not even then). I am unable to use the scanner which for me is more important than printing itself (BTW the printer prints fine!).
According to the technical support person the problem is NOT with the printer but with my laptop (which is barely 6 months old). He even suggested that I re-install Windows in order to fix the problem.
I think the drivers rely on a outdated technology - RPC Locator service is a deprecated service is only kept in Windows for supporting legacy applications. I since so many people are experiencing this problem on Windows 8.1, Canon should provide a better solution/provide drivers which work with latest technology.
Any other ideas are welcome.
06-24-2015 02:27 PM
06-24-2015 02:31 PM
Yes - that's right. The printer I am trying to scan with is an old one. The tech support person from Canon informed me that even if buy a new Canon printer - I will still have the same problem! As it is a problem with *my* laptop and not Canon's problem!
06-24-2015 02:33 PM
Take it back and buy a Brother printer. Much easier driver install and scan support from within the windows tool or the Brother tool. Canon makes great cameras.
06-24-2015 02:35 PM
01-27-2017 12:57 AM
Just registered on this forum to say thanks so much for the help, even though it was from over 2 years ago! An old driver folder in the twain32 folder was causing the MF Toolbox buttons to not work. They would just flash when clicked but they were not working - nothing else would happen...
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