Question about Canon CanoScan 4400f MultiFunction Color Printer

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Every time i try to scan something on my new scanner, Canoscan 4400F, it says it cannot access TWAIN and to check my connection and try again. I have unplugged and re-plugged the scanner and restarted my computer. What now?

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If all the cables are hooked correctly, try re-installing the drivers that came with the unit, or download the drivers from the manufacturer

Posted on Jan 09, 2009

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1 Answer

My canoscan keeps crashing and shutting down when trying to preview a document. What do I do


This is often caused by not enough memory, RAM or HDD space. Also, it may be a driver issue, you should re-install your software again. Install ALL, software Scanner, Printer, and Scan manager. Always install and Run as Administrator.

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Canoscan 8800f error as ''cannot connect with scanner''


I had the same problem with a new canoscan 8800f. I found by connecting the scanner USB lead to a USB 1 .1 port instead of a USB 2.0 port the problem seems to have been was solved. I was fortunate to have both. Originally it was just USB 1.1 ports on my PC, but I added USB 2.0. I don't know how you solve the problem if you only have 2.0 ports.

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I was getting streaking across all photos that I was scanning. So bad that I researched getting a new scanner. Then one day it started working just fine. Now today I scanned some slides and when I tried to...


sounds like the scanner is skipping pixels. that is usually a sign of malfuncting. the best solution is get a new one. cost of getting new one is much cheaper to repair it.

Oct 17, 2009 | Canon CanoScan 4400f MultiFunction Color...

1 Answer

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2 Answers

CanoScan 4400F cannot scan not enough space in target disk


Easy fix... Happens all the time with all Canon scanners. Open the tool box...click on settings and change the folder where the temporary files are stored to another folder of your choice...or create a new one in your documents. That's it!

Apr 04, 2009 | Canon CanoScan 4400f MultiFunction Color...

1 Answer

Canon 3000f scanner only produces black pages


your vista OS is not compatible to ur pc. try to install XP service pack 2 or pack 3

Nov 28, 2008 | Canon CanoScan 4400f MultiFunction Color...

1 Answer

Have uninstalled and reinstalled software for CanoScan LiDE60 and still coming up with 2 error messages - "cannot communicate with scanner" and " unable to open TWAIN source". How do I...


Are you scanning from Toolbox? Make sure the correct scanner is selected in the Settings section.

What OS is this? Try scanning from various applications.
Does the scanner react at all at any time?

Make sure you have installed ScanGear and not just Toolbox.

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1 Answer

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I had exactly as described on my new 4400f scanner. Have resolved by uninstalling the toolbox software (it was at 5.0.1.2), downloading toolbox s/w from canon site, file name is S6A04mux.exe - toolbox 5.0.1.1 Installed this and all works from the scanner front panel

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1 Answer

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