I'm scanning on Windows 10 using a Brother MFC-J5320DW Scanner. The scans on glass work, but scans with the feeder with two or more pages seem to time out with the error below. The feeder scan works if I scan a single page, but fails with this error if I try to scan two or more pages. When scanning one page, it is scanned correctly, but with two or more pages only the first page appears in the application and it is only partially scanned, with around the first 60% of the page being scanned and the remaining 40% of the page being black.
There doesn't appear to be a TWAIN driver for my printer because it's not available in the profile.
Note that I can scan multiple pages with the feeder using the Windows Fax and Scan application, but I would definitely prefer to use NAPS2. Any ideas? Is the timeout too short?
2017-02-11 10:29:04.2034 An error occurred with the scanning driver. System.Runtime.InteropServices.COMException (0x800705B4): This operation returned because the timeout period expired. (Exception from HRESULT: 0x800705B4)
at WIA.ItemClass.Transfer(String FormatID)
at NAPS2.WinForms.FScanProgress.<FScanProgressShown>b0(WiaState wia)
I have a further piece of information that I've just discovered: if I put one page in the feeder and let it scan completely, then put another one in while NAPS2 is waiting to scan page 2 and let that scan completely again, it scans all the pages. Ultimately it still fails with the same error after the last page is scanned but at least all my pages are scanned into NAPS2. This is far less convenient than putting all the pages in the feeder at once of course, but it could indicate that the speed of transfer or some kind of timing issue is the problem?
Last edit: Bart Joy 2017-02-10