[sane-devel] FI-5750C Error 4?

m. allan noah kitno455 at gmail.com
Thu Jun 28 11:56:43 UTC 2007

On 6/27/07, Simon Glass <sglass at bluewatersys.com> wrote:
> Hi Alan,
> Thank you.
> m. allan noah wrote:
> > On 6/26/07, Simon Glass <sglass at bluewatersys.com> wrote:
> >> Hi,
> >>
> >> Now that I am able to build SANE (thanks Alan, but no I have no idea
> >> about libtool) I have the FI-5750C working. It's a wonder to behold.
> >> However, I am puzzled by an error that I get. It seems that if I try to
> >> scan a page larger than the setting I have for the ADF size then I get
> >> an error 4 (Unknown Error).
> >>
> >> Further to that, if I try to scan A3 (even with the right ADF setting) I
> >> get error 4. Maybe it is something slightly wrong with the paper size.
> >>
> >> Any ideas on this one?
> >
> > error 4 is SANE_STATUS_INVAL, indicating that the scanner was unhappy
> > with your choice of options. try setting the pagewidth and height
> > before the x and y values, in case order of operations is important.
> > show us the exact command line you are using.
> >
> Yes I did get it to go by fiddling and I think I know what is wrong (in
> my code!). I am trying to centre the page to make up for the ADF so I
> will sort that out and try again. The error 4 happens after the page is
> scanned. In my view the driver should do the right thing, though. I'll
> narrow this down a bit and get back to you.

stop trying to center the page. use pagewidth and pageheight options
along with br-x and br-y, and the backend/scanner will center it for

> >>
> >> Another point is that the scanner seems to pause after some pages. Not
> >> every time, it might scan 6 pages and then pause for a second. But it is
> >> quite noticeable. I wonder if that is SANE or Fujitsu...
> >>
> >
> > do you have the buffermode option? try turning that on. does the
> > windows driver behave this way?
> Haven't tried the windows driver, but I should be able to crank that up
> with a laptop or something.
> Will have to look up what buffermode is.
> >
> > also- can you verify that color scans look correct, and can you tell
> > the usb productID for this machine?
> >
> found USB scanner (vendor=0x04c5, product=0x1095) at libusb:005:013

thanks. will add to next version.

> For colour I seem to get 3 images side by side across the page. I can
> probably do a test page with separate RGB to send you an image if that
> would help. Maybe there is a new file format.

nope- it just needs to be hardcoded in the backend, because i have not
figured out how to ask the scanner which format it uses. around line
1455 in fujitsu.c look for '5650' and add the 5750 to that if(). then
rebuild/reinstall and color will look fine.

> Is there a way of getting JPEG data from the scanner?

not at the moment. the sane standard does not give a good way to
return that data, and so i have not completed that code.


> Regards,
> Simon
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