[Tfug] Sane backends
andy
andyjones at cox.net
Tue Nov 6 15:43:19 MST 2007
Predrag, I appreciate the scanner instructions. I'm still working on
this issue when I can. Lack of dev understanding is my problem.
Right now, I get this:
andy at andy-laptop:~$ scanimage -L
device `v4l:/dev/video0' is a Noname USB 2.0 Camera virtual device
device `plustek:libusb:002:003' is a Canon N650U/N656U USB flatbed
scanner
So it recognizes both the built in USB camera and the scanner. then....
andy at andy-laptop:~$ scanimage --test
scanimage: open of device v4l:/dev/video0 failed: Invalid argument
There isn't any listing for scanner of any type in /dev, so I guess
thats why it's try to use the video0? But I don't understand why since
it appears to know the device is available. I just don't have any
knowledge on devices, maybe I can google up something.
Andy
On Wed, 2007-10-31 at 16:20 -0700, Predrag Punosevac wrote:
> Ok,
> I assume that you checked sane web site and that your scanner is
> supported:-)
>
> Since I am a FreeBSD guy I do this from the comand line.
>
> Step 1
> Plug your scanner and reboot. (hot plug in usually doesn't work for
> printers and scanners at least not the first time)
>
> On FreeBSD I would usually adjust permissions before I reboot by editing
> /etc/devfs.conf file
> with perm /dev/uscanner0 0666 so that I can use scanner as a normal
> user.
> This file /etc/devfs.conf is FreeBSD specific file(OpenBSD) doesn't have
> it for instance. You can check
> ls -l /dev/uscanner0 to check the permissions and if it is not something
> like rwx-rw-rw you should
> do chmod 0666 /dev/uscanner0. This is probably ok in ubuntu
>
>
> Step2
> Type sane-find-scanner as a normal user.
> Your scanner should be detected. Inspect the output
>
>
>
> Step3 Type scanimage --test
> You scanner should react and give you output something like this
>
> [pedja@ /usr/home/Pedja]$ scanimage --test
> [snapscan] Scanner warming up - waiting 8 seconds.
> [snapscan] Scanner warming up - waiting 36 seconds.
> scanimage: scanning image of size 2552x3507 pixels at 24 bits/pixel
> scanimage: acquiring RGB frame, 8 bits/sample
> scanimage: reading one scanline, 7656 bytes... PASS
> scanimage: reading one byte... PASS
> scanimage: stepped read, 2 bytes... PASS
> scanimage: stepped read, 4 bytes... PASS
> scanimage: stepped read, 8 bytes... PASS
> scanimage: stepped read, 16 bytes... PASS
> scanimage: stepped read, 32 bytes... PASS
> scanimage: stepped read, 64 bytes... PASS
> scanimage: stepped read, 128 bytes... PASS
> scanimage: stepped read, 256 bytes... PASS
> scanimage: stepped read, 512 bytes... PASS
> scanimage: stepped read, 1024 bytes... PASS
> scanimage: stepped read, 2048 bytes... PASS
> scanimage: stepped read, 4096 bytes... PASS
> scanimage: stepped read, 8192 bytes... PASS
> scanimage: stepped read, 8191 bytes... PASS
> scanimage: stepped read, 4095 bytes... PASS
> scanimage: stepped read, 2047 bytes... PASS
> scanimage: stepped read, 1023 bytes... PASS
> scanimage: stepped read, 511 bytes... PASS
> scanimage: stepped read, 255 bytes... PASS
> scanimage: stepped read, 127 bytes... PASS
> scanimage: stepped read, 63 bytes... PASS
> scanimage: stepped read, 31 bytes... PASS
> scanimage: stepped read, 15 bytes... PASS
> scanimage: stepped read, 7 bytes... PASS
> scanimage: stepped read, 3 bytes... PASS
>
>
>
> Step4 It is possible that at this point scanner will complain that it
> needs firmware (manufacture binaries)
> Many scanneres do need them. Read how to create them from Winblows driver
> that came with your scanner.
> They should be put in
> /usr/local/share/sane/snapscan/your-firmwarefile.bin or what ever path
> you find in /usr/local/etc/sane.d/snapscan.conf probably
> in the case of Ubuntu /etc/sane.d/snapscan.conf as Linux is known to mix
> system /etc/ and applications /usr/local/etc
> You should also inspect
> /usr/local/etc/sane.d/cannon.conf file.
> You scanner should be listed there if not add it based on the dmesg. Look
> previous lines for tamplets.
>
>
> Step5 Something scanner conflicts with the printer. Plug and initiate
> scanner first and then printer.
>
> Step6 If above fails that is probably due to the fact that Ubuntu kernel
> is messed up (well documented on various mailing lists).
> So check their forums for work abounds if there is any.
>
> Step 7 If above works. Try to scan from the Xsane GUI. It should work like
> a charm. Adjust Xsane at your taste using GUI. I usually
> scan documents into pdf files so I really hate image formats that are set
> by default.
>
>
> Let me know how it goes. I will be back home tonight at 9pm.
>
>
> Cheers,
> Predrag
>
>
>
>
> On Wed, 31 Oct 2007 15:27:14 -0700, andy <andyjones at cox.net> wrote:
>
> > Thanks Predrag, here's what I've got, maybe you can see what I'm
> > missing. Any suggestions would be appreciated.
> >
> > HP DV2000 notebook, dual core intel, 2 gig Ram, Ubuntu Feisty
> >
> > Included in the Ubuntu install was XSane the graphical interface for
> > Sane which detects my Canon N650U scanner fine and shows the
> > Plustek:libusb:001:006 backend. Everything looks good at this point, the
> > application starts and appears to be normal, but when I try to acquire a
> > preview or scan nothing happens, no lights, no motors, nothing, it
> > simply times out and cancels.
> >
> > The fact that there are no apparent errors is what really has me
> > stumped.
> >
> > Andy
> >
> >
> > On Tue, 2007-10-30 at 23:28 -0700, Predrag Punosevac wrote:
> >> Yes,
> >> I do have some experience (my Epson scanner works flawlessly on FreeBSD)
> >> but I am not a professional sys admin if that was the question.
> >> By the way printing and scanning are identical on Linux and FreeBSD so I
> >> probably could help.
> >> Predrag
> >>
> >>
> >> On Tue, 30 Oct 2007 22:25:23 -0700, andy <andyjones at cox.net> wrote:
> >>
> >> > Has anyone had any experience with SANE or know how to setup the SANE
> >> > backend for scanners?
> >> >
> >> > Andy
> >> >
> >> >
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>
>
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