[sane-devel] Re: HP 7450C - Error trying to scan in powersave mode

[Thomas Frayne]

On Sat, 2004-08-28 at 14:50, Erik P. Olsen wrote:
> On Thu, 2004-08-26 at 19:33, René Rebe wrote:
> > Hi,
> > 
> > Erik P. Olsen wrote:
> > 
> > > I don't think this is true. I am running the latest bleeding edge
> > > backend from
> > > http://svn.rocklinux-consulting.de/sane-avision/trunk/backend/
> > > with my HP 7400c and I first thought that it had been corrected. But it
> > > turned out to be true only after a reboot and subsequent scans performed
> > > after the lamp had cooled off had the old problem: scanner stops halfway
> > > through in a horrible noise which you have to stop by pulling the plug.
> > > After switching it on again it pauses for 90 sec. before doing a correct
> > > scan and so it does at all following scans - pausing 90 sec. that is. It
> > > is only back to normal after a reboot.
> > 
> > Hm - it fixed it for my test scanner here. If it still happens on your 
> > side it would be nice if you could debug why this still happens.
> 
> OK, log attached with SANE_DEBUG_AVISION=7. Used xsane to produce the
> problem. The scenario was as follows:
> 
> 1. Reboot
> 2. Correct scan
> 3. Wait half an hour
> 4. Incorrect scan, stopped half way through with this horrible noice.
> 5. Pulled the plug.
> 
> The scan was performed on a full A4-size document. If I reduce the scan
> to, say, 5 by 5 mm the problem never occurs.
> 
> Please let me know if you also need to see the image.



I installed from CVS, and am getting similar problems.  Let me know if
you need another trace.