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No WIA and Twain after Windows 10 / 11 Update in Scan to PDF, why
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Canon Scanner – Unable to Open TWAIN Source - Ask Garth
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3.2.10.2. Scanning From Twain Scanners
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Jeff Widmer's Blog - Canon Scanner – Unable to open TWAIN source
Canon Scanner – Unable to Open TWAIN Source - Ask Garth
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Canon Knowledge Base - DR Scanner driver not found / TWAIN Error
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