[sane-devel] Epson GT-12000 SCSI scanner

[Dr. Karl Kashofer]

Hi again !

> beka at beka-desktop:~$ lsscsi --hosts
> [1]    usb-storage
> [2]    aic7xxx
> beka at beka-desktop:~$ lsscsi
> [1:0:0:0]    disk    EPSON    Stylus Storage   1.00  /dev/sda
> beka at beka-desktop:~$

It does look as if I was knocking the wrong bush here.... 

So it seems my scanner is not recognized by the system atm.

Here is what I have observed:

When the scanner is on, and I plug the scsi cable which is attached to the 
running computer into it, it immediately goes off, the power light goes off 
and its completely dead. 
When I unplug it it comes back to live.

Also, as I said before, if I rescan the scsi devices by unloading/loading the 
aic7xxx module i get thousands of these
> [4295901.633000] scsi2: Someone reset channel A
> [4295901.639000] scsi2: Someone reset channel A
> [4295901.645000] scsi2: Someone reset channel A
> [4295901.651000] scsi2: Someone reset channel A
> [4295901.657000] scsi2: Someone reset channel A
> [4295901.663000] scsi2: Someone reset channel A
messages in dmesg and the system seems to hang for several minutes.
After that it works again. The same happens when I reboot the computer with 
the scanner attached. It pauses for several minutes during the boot process.

So it really looks like its a problem with my SCSI AHA 2940 and the Scanner 
not talking correctly to each other.

Now, the scanner is on SCSI-id 2 and has an internal terminator.
Any pointers where to look for help ?

Thanks,
Karl Kashofer

Am Montag, 20. November 2006 02:18 schrieb Olaf Meeuwissen:
> "Dr. Karl Kashofer" <karl.kashofer at gmx.at> writes:
> > Hi !
>
> Hi!
>
> > I have trouble getting the Epson GT-12000 SCSI scanner working. It is not
> > recognized by sane-find-scanner.
> >
> > This is my SCSI card:
> >> 0000:00:0a.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U
> >
> > Here is all the info:
> >> beka at beka-desktop:~/Karl_Admin$ cat /proc/scsi/scsi
> >> Attached devices:
> >> Host: scsi1 Channel: 00 Id: 00 Lun: 00
> >>   Vendor: EPSON    Model: Stylus Storage   Rev: 1.00
> >>   Type:   Direct-Access                    ANSI SCSI revision: 02
>
> Hmm, "Stylus Storage" ???
>
> >> [snip]
> >> beka at beka-desktop:~/Karl_Admin$ sane-find-scanner
> >>
> >>   # sane-find-scanner will now attempt to detect your scanner. If the
> >>   # result is different from what you expected, first make sure your
> >>   # scanner is powered up and properly connected to your computer.
> >>
> >>   # No SCSI scanners found. If you expected something different, make
> >> sure that # you have loaded a kernel SCSI driver for your SCSI adapter.
> >>
> >> found USB scanner (vendor=0x04b8 [EPSON], product=0x082b [USB2.0
> >> MFP(Hi-Speed)]) at libusb:004:003 # Your USB scanner was (probably)
> >> detected. It may or may not be supported by # SANE. Try scanimage -L and
> >> read the backend's manpage.
> >>
> >>   # Not checking for parallel port scanners.
> >>
> >>   # Most Scanners connected to the parallel port or other proprietary
> >> ports # can't be detected by this program.
> >>
> >>   # You may want to run this program as root to find all devices. Once
> >> you # found the scanner devices, be sure to adjust access permissions as
> >> # necessary.
> >> beka at beka-desktop:~/Karl_Admin$
> >
> > (There is a second Epson scanner attached on the USB port)
>
> Indeed, it's an EPSON Stylus CX4900/CX5000/DX5000.  That model has a
> slot for storage media.  Storage media is typically handled as a SCSI
> device under Linux.  Are you sure your GT-12000 is detected?
>
> Unplug the USB device and have another look at your SCSI information.
> I expect that nothing shows up anymore.  If that's the case, the
> problem is before the backend and you should be looking at your SCSI
> card first.
>
> Hope this helps,