Unable to scan multiple pages with ADF

[elveos]

Running Acquire >> Scan with Canon MF4780w starts the scanner's scanning utility (Canon Toolbox 4.9). Scanning single page works fine, but selecting ADF source will close the scanning utility window as soon as first page is done, like only single page was in the scanner.

The scanner will keep scanning the pages but nothing shows in the program. This doesn't happen with ReadIRIS which also relies on Canon Toolbox. Perhaps there's wait time value that needs to be increased?

Tested with:

• gImageReader 3.3.1 qt5 i686 (forced to use i686 due to x86 TWAIN drivers)
• Windows 10 x64
• Canon MF4780w

[manisandro]

The current TWAIN implementation does indeed not yet support ADF [1]. I also don't own a ADF capable scanner to test against...

[1] https://github.com/manisandro/gImageReader/blob/master/qt/src/scanner/ScannerTwain.cc#L241