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Re: QNAP TS 101 as sane- server -problem
On 03/03/14 10:27, Frank Wille wrote:
On Sun, 02 Mar 2014 22:05:48 +0000
Helge Muehlmeier <H_Muehlmeier%gmx.de@localhost> wrote:
I want to use this device as scanner-server using sane and I made a
working setup with a custom kernel.
Nice! Can you give some more information about the setup? That would
certainly be interesting to read for others.
I will describe my setup tomorrow because I'm running out of time today :-(
I guess you used sane-backends from pkgsrc? Any other configurations
required?
Yes. sane-backends from pkgsrc. man "saned" is a good starting point...
(but I will describe it soon in this thread :-))
Which scanner model?
I use a Epson Perfection 1260 (with this model I was able to setup a
scanner server years ago on a OpenBSD system)
I have an old USB scanner somewhere. Maybe I can try to set it up on a
sandpoint-NAS myself, so we can see if it is a general problem.
That sounds interesting...
My problem is, that the scanned images on my workstation are in a very
poor quality... Not only if I use my workstation over a network
connection...
The images I scanned with scanimage on the QNAP device are bad, too...
I didn't know what a scanner-server is, but I found out that "saned" can
be used to set up such a service.
That's it :-)
Ok, so the scanner is already providing a poor quality scan, when
connected to the QNAP, and "saned" is irrelevant.
Can you define "poor"? Is it a lower dpi resolution than expected? Or is
the scan wrong (corrupted or swapped pixels, wrong colors)?
Is there a free webspace where some images can be uploaded? I think that
pictures will explain it better...
The scanner works perfectly if I use it directly attached on my
workstation.
What kind of system is that? Also running NetBSD? Using the same SANE
configuration?
Yes NetBSD.
btw.: I used several pkgsrc branches on my QNAP. Same result...
Unfortunately I cannot help you with SANE at all, as I never managed to
install a NetBSD scanner myself. ;)
Lets give it a try... It is very simple and useful... My plan is to
setup a scanner and printer service for my home- network :-)
But it would be very strange when the same scanner delivers different
quality with the same NetBSD and SANE version on different systems. The
USB device driver source is machine-independant, and the QNAP has a
standard NEC D720101 USB chip (OHCI).
My first guess would be different configurations, or a problem with
big-endian in SANE (provided your workstation is little-endian).
I have no idea about that...
Do I have to use different settings in my kernel?
Here are my settings I added to the GENERIC kernel:
#USB Generic Driver
ugen* at uhub? port ?
#scanner
#uscanner* at uhub? port ?
usscanner* at uhub? port ?
Any ideas?
Does the scanner really talk SCSI-over-USB?
Just use the same configuration as on your workstation.
If "usscanner" isn't in kernel I guess the scanner wouldn't be found
with sane-find-scanner or scanimage (-L)
Greetings,
Helge
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