[sane-devel] Scanner missing

[Simon Matter]

> On Thu, Oct 14, 2010 at 12:34 AM, Johannes Meixner <jsmeix at suse.de> wrote:
>>
>> Hello,
>>
> :
>>
>> If "scanimage -L" doesn't show it, inspect whether or not the
>> SANE backends (i.e. the drivers) for your models are activated in
>> a file like /etc/sane.d/dll.conf (might be elsewhere on CentOS).
>>
>
> $ scanimage -L
> device `niash:libusb:002:004' is a Hewlett-Packard ScanJet 3300C flatbed
> scanner
>
> $ lsusb
> Bus 001 Device 012: ID 0781:5506 SanDisk Corp.
> Bus 001 Device 001: ID 0000:0000
> Bus 002 Device 007: ID 03f0:3112 Hewlett-Packard
> Bus 002 Device 001: ID 0000:0000
> Bus 002 Device 002: ID 04f9:0033 Brother Industries, Ltd
> Bus 002 Device 004: ID 03f0:0205 Hewlett-Packard ScanJet 3300c
>
> ]$ grep hp /etc/sane.d/dll.conf
> hp
> hpsj5s
> hp3500
> hp4200
> hp5400
> # HP OfficeJet backend homepage: http://hpoj.sf.net/
> # Uncomment the following line if hpoj is installed:
> #hpoj
> hpaio
>
>> For HP all-in-one devices which use HP's own free software HPLIP
>> (see http://hplipopensource.com) the SANE backend is "hpaio".
>>
> See above.
>
>> For HP flatbed scanners there are some other backends
>> provided the model is supported by SANE, see
>> http://www.sane-project.org/sane-mfgs.html#Z-HEWLETT-PACKARD
>>
> It's an all-in-one....
>
>> Even if you use CentOS, the following articles for openSUSE might
>> also be of interest for you because in general SANE should work
>> the same regardless of a particular Linux distribution:
>>
>> http://en.opensuse.org/SDB:Configuring_Scanners
>> in particular the sections about "USB scanner access permissions
>> via udev" and "Trouble-Shooting (Debugging)"
>>
> I played with this a little - no change in results.
>
>> http://en.opensuse.org/SDB:How_to_set-up_a_HP_printer
>> in particular in the "Troubleshooting" section:
>> -----------------------------------------------------------------
> That's not a problem.  The printer works.
>
>> In general if things do not work, use "hp-check -r"
>> in a terminal to track the issue.
>> -----------------------------------------------------------------
>>
> This complains about PyQt not being there and that my SJ 3300C is not
> recognized, but that one works just fine and the OJ3600 just doesn't
> show up as a scanner (it shows up as a printer and a fax).
>
>> In particular regarding HPLIP see also
>> http://hplipopensource.com/hplip-web/support.html
>>
> I have hplip 3.10.6 installed.
>
> What bugs me is that this was working perfectly last week and now it's
> like the scanner is invisible again, except that now even root can't
> see it even though it shows up in lsusb.

Hm, RHEL5/CentOS5 comes with hplip version 1.6.7. Whatever you did to have
hplip 3.10.6 installed you should check it again. Maybe the hplip is not
started, maybe the package you installed doesn't really fit your
environment. Maybe a regular CentOS update has "damaged" your hplip
installation.

Simon