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usb - How to fix spurious "Cannot communicate with scanner" error, without rebooting - Ask Different
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Error: "Cannot communicate with scanner" and "TWAIN error" while opening Streamed Applications on x64 Windows
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Apple Says Fix Planned for 'You Do Not Have Permission to Open the Application' Error When Using a Scanner on Mac [Updated] - MacRumors
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HP ScanJet - Error messages display on the scanning software in a Citrix environment | HP® Customer Support
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