[sane-devel] Unstable scanning with Fujitsu fi-7160

[Simon Matter]

Hi Krzysztof,

> Hi Simon,
>
> Simon Matter writes:
>
>> When the scanner fails it is also not detected via "scanimage -L".
>
> What about lsusb and (the last part of) dmesg? Does the USB device
> disappear?

It both happens. Sometimes the device is still seen in lsusb output and
sometimes not.

>
> Does it work the same with the manufacturer's software (Windows etc)?
> If not, perhaps comparing command sequences sent from SANE and from the
> other sw could help. Otherwise (if the original sw behaves the same),
> it could be a firmware problem.
>

These scanners work perfectly fine with very old sane-backends and
operating system. So I'd say it's not firmware related.

Simon