Hello,

On Dec 28 12:02 Mikael Eriksson wrote (shortened):
> Photosmart C5180 and connected it with an ethernet cable to my 
> home-network.
...
> At first I wasn't able to scan, Koka didn't find any scanner.

No frontend can communicate with a scanner when there is no
SANE backend (i.e. no SANE driver) activated. For general
info see for example
http://en.opensuse.org/SDB:Configuring_Scanners_from_SUSE_LINUX_9.2

> Since I use openSUSE 10.2 I went to yast - add scanner but no
> scanner was found automatically.

The help text in YaST tells you that only local connected scanners
(actually only USB and SCSI scanners) can be autodetected and
that HP all-in-one devices are not autodetected at all.
The reason is that YaST runs sane-find-scanner for autodetection.

> I had to add it manually and select the correct driver, when 
> that was done yast found my device at the network and scanning
> now works great!
...
> In openSUSE 10.2 you first have to activate and start the hplip
> service in Yast  - System - Edit runlevels

The latter is not necessary.
The YaST scanner setup tool also activates and starts the hplip
service when the "hpaio" backend is set up.

> I use hplip 1.6.10 which is shipped with 
> openSUSE 10.2, even though it was installed automatically during
> installation the service is not activated by default.

Be glad that we don't start any service by default which is
installed by whatever package - or do you really want to have
any available service running automatically?
As a matter of principle, we prefer not to start any service
that is not really required by the user.
I.e. even if we autodetect hardware for which a particular
service might be useful, we won't start the service without
any user interaction (e.g. the user has to set up the hardware).
For example a plain printer can be used with the HPIJS driver
but without the hplip service, see
http://hplip.sourceforge.net/tech_docs/overview.html

> Then I would like to know what will happen sooner or later when
> my DHCP server decides to assign the device another ip-adress?

I assume that at least printing will no longer work if the usual
CUPS DeviceURI like hp:/net/Photosmart_C5180?ip=192.168.100.200
is used because the IP is fixed in the DeviceURI, for general
info about CUPS see for example
http://en.opensuse.org/SDB:CUPS_in_a_Nutshell
Note that the CUPS backend (do not confuse with a SANE backend)
may disable the print queue if the IP does no longer exist.


Kind Regards
Johannes Meixner
-- 
SUSE LINUX Products GmbH, Maxfeldstrasse 5      Mail: [EMAIL PROTECTED]
90409 Nuernberg, Germany                    WWW: http://www.suse.de/

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