Question about Canon CanoScan D1250U2F Flatbed Scanner

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My scangear does not find twain driver anymore

When the scan button pressed on the scangear, a window is openned and mentions that it cannot find the twain-driver

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  • hersing Dec 14, 2008

    scan button cannot open twain driver

  • Warp333 Dec 17, 2008

    Same problem. Tried various applications and they all tell me something like " Unable to open TWAIN source" and other TWAIN problems. I've remeoved and reloaded drivers, ScanGear, CSU stuff etc...
    I also tried to go to XP Conrtol Panel>Scanners and Cameras>. My scanner shows up and when I run the diagnostic from there the scanner does a short sweep and XP reports that it's working fine. Then I go to Start>Programs>Accessories>Scanner and Camera Wizard and it says it can't find any scanners and to add it in the Conrol Panel>Scanners and cameras. Worthlessly circular troubleshooting info. ANybody get this one figured out???

  • jbpm428 Jan 11, 2009

    i hav esam esituation d1250u2f scanner

  • NV-Sparkle Feb 12, 2009

    Every time I try to run Scan Test from Scanner Properties it tells me that my scanner is not connected (but it is). When I go into Canon Toolbox, it says that it can't find TWAIN driver. I have downloaded and installed all 3 available Canon downloads for VISTA, but nothing seems to be working! I really don't want to buy a NEW scanner ..... I haven't used this one all that much! Can ANYBODY help?

  • Anonymous Apr 14, 2009

    I have the same issue with windows vista.

  • asdfkj May 23, 2009

    SAME PROBLEM ON MP480 all-in-one. I have newer HP Pavillion with Vista Home Premium.

    SCANNER WILL NOT WORK.

    Tried numerous approaches. THIS IS A RIP-OFF

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4 Suggested Answers

justme99678
  • 4 Answers

SOURCE: Twain driver for CanoScan D660U

If you are using Vista try here http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=351&modelid=6629

Posted on Jan 16, 2008

mohanchennai
  • 490 Answers

SOURCE: "Unable to open TWAIN server" Please assist

For any device to work you need 'drivers'. It is difficult to find a driver for an old product with a new OS like vista. You can try to get drivers for XP or Win2000 and use them.

S. Mohan

Posted on May 30, 2008

  • 1335 Answers

SOURCE: how do i install TWAIN drive

Go to
http://www.usa.canon.com/consumer/controller?act=ConsumerHomePageAct
put in your model number and you will find the correct driver for your scanner.
Please make sure to rate this solution. Thanks.

Posted on Jun 09, 2009

omerboo
  • 424 Answers

SOURCE: Twain driver missing for N670U

Alternative driver download link: Canon CanoScan N670U/N676U Scanner Driver

Posted on Jan 25, 2010

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I'm getting 2 error messages when I import the Canoscan D1250U2F from Photoshop: 1) ScanGear CS-U: Cannot communicate with scanner. Cable may be disconnected. Check status. Scanner driver will be...


I have many years experience repairing Canon scanners so here is my suggestion for you.

This is a common problem with all Canon scanners. If you do a lot of scanning or leave your computer on all the time and never shut it off. What is happening is the memory fills up with all of the images and it needs to be cleaned out. If you reboot (restart) your computer it will clean out the memory and your problem will go away. I always recommend that if your going to be scanning a lot then do it off a fresh reboot and you should be able to your hearts content.

I hope this helps you out.

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I need to download the TWAIN driver for the Cano Scan N1240U can you help?


http://software.canon-europe.com/products/0000469.asp (twain driver is emdedded with scangear)

pls. vote so I continue to share

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Can't copy or scan on canoscan lide 25


You need to install the software drivers You need BOTH programs installed on your PC, Toolbox & Scangear. Also use the driver remover first. Then unplug scanner, reboot, install Scangear first, and toolbox second, then reboot, when at desktop next time, plug in the Scanner. Hopefully it should be all good. Read the Help file. http://software.canon-europe.com/products/0010219.asp

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3 Answers

Unable to select TWAIN source


tried uninstallin and installin canon scanner drivers..nothing works..still seeing unable to select twian source..

so i tried an alternative..here we go..
on vista 64 os/vista any version..click Start>All programs>Windows fax and scan

next click new scan on top and that got me going.

some say there are issues with the way usb talks to old scanners with new operating systems like mine (vista 64). hope it helps until you find the actual cure.

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Canon scanner


TWAIN is the type of scanner driver that is used for this scanner. It is probably the most common type of scanning driver.

Did you install Toolbox? Not sure? Assuming this is Windows, click Start, All Programs, Canon. Look for open CanoScan Toolbox (4.9 I think). Once this is open, click the 'Settings' button. There should be a drop-down menu for 'Select Scanner'. Make sure this shows the CanoScan LiDE 25. If that scanner is not listed, then the scanner driver is not being seen or may not be installed.

Once it has been verified that the LiDE 25 is selected, click OK. Next, click the 'Save' button. Check the box for 'Display the Scanner Driver'. Now click the 'Scan' button at the bottom.
The next window that pops up should be ScanGear. If this happens, then everything is installed and the scanner is being detected properly. Attempt to scan or preview.

If there was a particular application you were trying to use and you are still having issues with it, please give those details.

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1 Answer

Twain problem


Give a little more detail of your problem. Have you installed ScanGear and Toolbox?
What OS are you using?
What errors, if any, do you get?

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It looks like the computers have a hard time communicating with the scanner it will be advisable to download all the current firmware available, her is the link:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=235&modelid=13810#DownloadDetailAct
This should take care of the problems.

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