[sane-devel] Slow scanner & timeout

[m. allan noah]

The HP 6x00 scanjets use ancient usb 1.0 (not even 1.1) IIRC. I had
lots of problems with this scanner on USB on every machine I tried.
Eventually I gave up and scrapped it. If you want to try and fix it, I
would get the source of sane-backends 1.0.20, and see if you can add
any calls to sanei_usb_set_timeout to the hp backend.

allan

On Wed, Apr 14, 2010 at 9:59 AM, Erik Lotspeich <erik at lotspeich.org> wrote:
> Hi,
>
> I have an HP ScanJet 6300c that I've been using successfully with sane
> for some time now.
>
> I have a problem when I use the XPA.  With the XPA, the scanner takes a
> LONG time (it waits for the XPA lamp to warm up) to handle scan
> requests.  The problem is that sane timeouts with an I/O error before
> the scanner is ready.  When the scanner is ready (you can hear it
> attempt to start the scan), sane is no longer listening.
>
> This scanner has both SCSI & USB interfaces.  I've used this scanner
> with XPA & sane many years ago with the SCSI interface -- it worked with
> SCSI.  I'm using the USB interface now.
>
> I did some searching on the Internet and I didn't see any definite
> answer.  I don't know if this is a sane issue or a USB one.  dmesg and
> /var/log/messages yield no error messages or warnings.
>
> I use OpenSUSE 11.1 with the following packages:
>
> # rpm -qa |grep sane
> sane-frontends-1.0.14-302.35
> xsane-0.995-131.35
> sane-backends-autoconfig-1.0.19-99.1
> sane-backends-1.0.19-99.1
>
> Any help would be greatly appreciated.
>
> Regards,
>
> Erik
>
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