Question about Canon CanoScan LiDE 30 Flatbed Scanner

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CanoScanner LIDE 30 When I hit the scan,copy, file,etc. I get the following: "unable to locate twain source" No functions, how can I correct this?

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  • mambosnake Nov 22, 2008

    exactly the same. where do I find the TWAIN source?



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This is an issue with the Driver Installation, Get the drivers Uninstall and reinstalled from the CD.

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Give this a try (found online):

Download Irfanview:

Open the main app "i_view32.exe"

With the scanner hooked up, click onto the "file" (tab)

Click "Select TWAIN Source .." and select your scanner in the source box (if it is listed, the driver is functioning)

Click file (tab) then "Acquire"

Hope this helps.

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When i try to scan i get this message: unable to open TWAIN source Please check connection then re-start Toolbox the connections are tight

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I have HP Officejet J3680 All in one I wanted to scan a document but it is saying there is not option..

canning functionality from the LJ3380 and CLJ2840 series All-in-One devices may not function until the correct Twain Data Source is selected by the user. This can be done by attempting to scan from the foundation scan executable "hppscan2.exe ".
  • For the LJ3380 series this is located in C:\Program Files\Hewlett-Packard\LJ3015_LJ3020_LJ3030_LJ3380->hppscan2.exe
  • For the CLJ2840 this is found in C:\Program Files\HP\Digital Imaging\bin->hppscan2.exe
When the "hppscan2.exe " is launched from this location where it resides, a dialog box will open with a "Select Source " box listing the installed Twain scanning devices available. If this box is not seen, then there is only one Twain device installed. In some instances user input is needed to chose the "correct" Twain data source for scanning to be successful from the LJ3380 and CLJ2840 series devices. If the incorrect Twain data source is selected- an error "Cannot initialize device " will be seen.

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Make sure the USB cable is properly connected at both ends. Close the Canoscan software and then reopen it and try again.

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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 we go..
on vista 64 os/vista any 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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Lock Switch and IF cable

Mine was doing the same thing. When I get on the program, before I click "acquire" to preview and scan, I click OFF the toolbox and then everything seems to be okay and I can go ahead and scan.

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