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CanoScan N340P/N640P Error Code 0x00070800 Unable to open the Twain source

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Unable to use CanoScan N640P with Acer Notebook

Hi ymonique,
Can you tell us whether this worked? I have the same problem but the system still cannot find the scanner when I use a USB to parallel cable.

Posted on Jan 04, 2008

DarkNeogen
  • 109 Answers

SOURCE: CANOSCAN N640P ex

Dear Hiraimport,

I have looked for the driver. I found one on the Australian website from Canon. On the USA site there are only drivers for the N650U or higher models.

Here's a link to the N640P Driver and software:
[Canon Driver Download for N640P]

Let me know if this helped you.

Greetings,

DarkNeogen

Posted on Jan 25, 2008

  • 2 Answers

SOURCE: Error message

Hi toolpusher

Try going to CanoScan Toolbox > Settings and reset the 'defaults' button at bottom... this will restore factory settings and hopefully fix your problem... The other error message you can expect to get is "unable to scan - insufficent memory, check your **** space' (or something similar)... same fix works for both! ...Have had both messages on mine, sounds like a semi-regular conflict on some sort, but seems to be easily fixed. Good luck :-)

Posted on Sep 30, 2008

  • 1 Answer

SOURCE: TWAIN ERROR AND CANOSCAN LIDE 20 SCANNER PROBLEMS

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:

http://www.everythingusb.com/forums/showthread.php?threadid=7337

The entry was by pallosp.

Posted on Nov 04, 2008

SOURCE: TWAIN ERROR AND CANOSCAN LIDE 20 SCANNER PROBLEMS

Select your operating system and download the driver "TWAIN Driver - LiDE 20 Scanner Driver Ver. 7.0.3.1a_xp" and then download the software "Canoscan toolbox" ...here is the link:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=351&modelid=6624

Posted on Jul 04, 2009

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Driver for Canoscan N640P for windows vista home premium 64 bits


You may be out of luck; here is a version for XP/NT that you could try to force-feed to see if it will work;

# Model: CanoScan N340P
# Size: 3.73 Mb
# Version: 3.8.2
# Date added: 09-Jan-2007, 10:36
# Manufacturer: Canon
# Device type: Scanner
# Operation system: Windows 98/ME/2000/XP
# MD5: 582d83ae6df3ea4bd0a3465a2750c020

http://www.nodevice.com/driver/CanoScan_N340P/get36948.html

You can download the driver from this IP address (72.56.181.99) within 24 hours. After 24 hours you will have to use the driver request form once again. Thank you for understanding.

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Hi ymonique,
Can you tell us whether this worked? I have the same problem but the system still cannot find the scanner when I use a USB to parallel cable.

Sep 29, 2007 | Canon CanoScan N340P Flatbed Scanner

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