[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread Peter Kirchgessner
Hi Juergen, I also did the tests on a Windows 98 Notebook with HP PrecisionScan Pro V 2.02. At 200 dpi/24 Bits Truecolor it stops about 5 times for an A4 scan. 300 dpi is nearly impossible. What resolution are you using that you don't have the problems ? --Peter Juergen Sauer wrote: > USB is qu

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread Juergen Sauer
Am Sonntag, 25. November 2001 14:05 schrieb abel deuring: > Juergen Sauer wrote: > Since none of the USB experts seems to be available at present, here my > $0.02. (disclaimer: I haven't ever even connected any USB device to a > Linux box...) I was forced to, because I ran out of PCI-Slots, so an

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread Peter Kirchgessner
Hello Juergen, I don't have a solution. But I can tell what's going on. The scan speed of the scanner can not be reduced any more. The speed mode "slow" gives the same speed as "auto" and "normal". Above about 200 dpi the scanner generates more data than USB can transfer to the computer. Thus the

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread abel deuring
Juergen Sauer wrote: > > Am Freitag, 23. November 2001 00:19 schrieben Sie: > > option enable-image-buffering > > Somewhat thing was what I'm looking for. > > It is not nessessary to have the same Device-Bandwith to the ram as with > SCSI. Scanning time is not important. My topic is more to save

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread Juergen Sauer
Am Freitag, 23. November 2001 00:19 schrieben Sie: > option enable-image-buffering Somewhat thing was what I'm looking for. It is not nessessary to have the same Device-Bandwith to the ram as with SCSI. Scanning time is not important. My topic is more to save the scanner's mechanical lifietime.

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-25 Thread Karl Heinz Kremer
--17pEHd4RhPHOinZp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Nov 25, 2001 at 02:23:48PM +0100, Peter Kirchgessner wrote: [ ... ] > I would like to know what other scanners (Epson, Miicrotek,...) are > doing when scan

[sane-devel] Q: Performance Tip wanted, USB vs. SCSI HP 63xx Scanner

2001-11-22 Thread Juergen Sauer
Hi! First, my HP 6350 works very fine in sane 1.0.6, good work ! System Linux 2.4.13-xfs/glibc2.2.2, smp, enough cpus & ram. But there is a differnce in running this scanner as SCSI or USB. In the SCSI mode (my system requires an aditional SCSI card for wich is no slot free) scanning works like