Question about Canon CanoScan LiDE 25 Flatbed Scanner

5 Answers


I have a Windows XP computer, and I'm trying to install a CanoScan Lide 20 Flatbed scanner on it, but it keeps saying there's a Twain error and it can't recognize the scanner. What should I do?

Posted by on

  • 6 more comments 
  • lucven Feb 29, 2008

    I'm having the same problem, but with a CanoScan Lide 25 in Windows Vista. I already got the CanoScan Toolbox for Vista and I still have the problem: TWAIN ERROR.



  • Anonymous Apr 17, 2008

    Yes, I have a Canonscan Lide 20. For four yeasr it worked very good, but suddendlu, it starts to show "twain error". What should I do?

  • Anonymous Jun 07, 2008

    i have a canoscan lide 25 it gives the twain error what can i do.

  • Lelouch Jun 25, 2008

    Every time I click Scan a window pops up saying "Release the lock switch, detach the USB cable and reconnect. Scanner driver will be closed."
    After closing that another window appears with the Twain Error, this is such a headache.

  • Blibla Jul 03, 2008

    I had my CanoScan Lide 25 installed before but thanks to a virus the sonputer had to be re-installed.

    Now when I installed the scanner and I tried to scan something it said cannot connect to TWAIN

  • Canonfused Jul 16, 2008

    When I have installed the software and connected the scanner, and
    selected the source in the ArcSoft PhotoStudio, I get a message saying
    that there is a Twain error and that the driver will disconnect.
    I have tried uninstalling and re-installing but still have the same problem.

  • mountain2322 Aug 02, 2008

    have a vista OS my canoscan lide 20 does not work (twain error). need help

  • M W Aug 08, 2008

    Same problem with a newLiDE 25 August 2008. Tried installing the newest drivers from Canon website (logged in as the Administrtaor account AND using RunAs Administrator). No Luck. CanoSan 25 in the skip!



5 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

Well I had a code 15 error with mine LIDE 20. Apparently the scanner needs a certain amount of power to run off the USB port. So I changed the USB port and problem fixed

Posted on Jul 16, 2008

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I had the same problem more than 1 year ago and then found the solution (at least in my case that is) somewhere on the internet. Since I have the same problem with a new computer I searched the internet once more, but did not find the solution. However, last time I was so clever to write down the solution on the disk of my old laptop. The laptop is gone, but not the disk, so I could access it by putting it in an USB enclosure and was able to find the solution once again. Here it is:

c:WINDOWS wain_32CNQLxx (xx is the number of your scanner) should be included in the PATH environmental variable.

Now I know where to look for I found the link where I found it first:

The entry was by pallosp.

Posted on Nov 04, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have installed the software for canoscan lide20 but i am unable to scan. firstly, when i start scanning from the computer it shows "WIA DRIVERS IS REQUIRED" . Secondly, when i scan directly from the scanner than it shows registration required

Posted on Mar 09, 2010

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Contributor
  • 45 Answers

Hi scheek,

I'm sorry to say that it seems that there is no easy solution to your canner's problem. After searching for a viable solution I came up with:

  1. Download the software for your scanner at
  2. Run the Uninstall Utility, and
  3. Reinstall the scanner following the guidelines (installing the driver with the scanner not attached to the PC, only attaching the scanner to the PC when prompted to do so during the installation process.
If this doesn't solve the problem it may be that a part of your Windows XP registry has become corrupt and cannot use the Twain interface correctly. Try the free software at
This is a registry fixer (RegCure) that fixes many problems with the Windows Registry including Twain Scanner Driver errors (see Learn how RegCure fixes your PC section at the link)

I hope this information helps you to solve the problem
Kind regards and thanks for using the FixYa service

Posted on Feb 21, 2008

I found what worked for me:

1. Open Windows folder
2. Open System32 folder
3. Try to find a file named twain_32.dll and rename it to twain_32old.dll.

Restart computer. BINGO!

G. Thorpe Encino, CA

Posted on Aug 06, 2008

2 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Select your operating system and download the driver "TWAIN Driver - LiDE 20 Scanner Driver Ver." and then download the software "Canoscan toolbox" is the link:

Posted on Jul 04, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

3 Answers

I lost my canoscan lide 20 installation cd

From this official link you can choose your operating system (windows XP, Vista, Windows 7), your language and download the latest version of drivers/toolbox for your scanner.

In case of a problem or clarification or further details needed, don't hesitate to post me a reply before rejecting my answer, including your operating system and prefered language.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Thanks and regards
Please kindly rate this solution
direct fixya link:

Mar 16, 2011 | Canon CanoScan LiDE 25 Flatbed Scanner

1 Answer

Canoscan Lide 30 - want to use on laptop running XP Pro

Did you restart your computer after you downloaded your drivers and software? Did you select the correct operating system? Make sure the USB cable is plugged into the computer and the scanner...Open the toolbox and click scan or save and check to see if the scanner makes any noise or lights up...If you are using Windows XP then make sure you have downloaded the "TWAIN" driver and the "WIA" driver (two seperate downloads)

Jun 30, 2009 | Canon CanoScan LiDE 30 Flatbed Scanner

2 Answers

Canoscan does not work on vista 64-bit

I'm not sure if this will work on the lide 20. I have an lide 35, and there are no 64 bit drivers for it. I downloaded and installed the drivers for the lide 60, told the computer to manually find the lide 60 drivers for my scanner, and installed the canoscan toolbox for vista 64 bit. Works like a champ.

Nov 07, 2008 | Canon CanoScan LiDE 25 Flatbed Scanner

2 Answers

CanoScan LiDE 20

already install the scanner driver but still can't working properly.

Sep 04, 2008 | Canon CanoScan LiDE 25 Flatbed Scanner

1 Answer


Select your operating system and download the driver "TWAIN Driver - LiDE 20 Scanner Driver Ver." and then download the software "Canoscan toolbox" is the link:

Aug 04, 2008 | Canon CanoScan LiDE 30 Flatbed Scanner

2 Answers

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.

May 19, 2008 | Canon CanoScan LiDE 25 Flatbed Scanner

1 Answer

Cannot TWAIN CanoScan LiDE 500F

What errors do you recieve? Where are you scanning from...what application?

Apr 02, 2008 | Canon CanoScan LiDE 500F Flatbed Scanner

3 Answers

Twain error

Buy a new scanner that doesn't say 'Canon' on it anywhere. Mine's useless too, for the same reason. Canon don't want to know about it. Berty

Mar 16, 2008 | Canon CanoScan LiDE 70 Flatbed Scanner

Not finding what you are looking for?
Canon CanoScan LiDE 25 Flatbed Scanner Logo

42,513 people viewed this question

Ask a Question

Usually answered in minutes!

Top Canon Office Equipment & Supplies Experts

old marine
old marine

Level 3 Expert

2178 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18425 Answers

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides