problem with shared printer and cups 1.2.2

[Michael Sweet]

Daniele Lugli wrote:
>> Daniele Lugli wrote:
>>> I have a small wireless network, 3 pcs running Ubuntu 5.10 (CUPS
>>> 1.1.23) connected with an USR5461 router. The router has an usb port
>>> with a Samsung ML-1520 laser printer plugged. The printer is
>>> reachable as 192.168.2.1:1631/printers/My_Printer. I never had any
>>> problem printing from any of the pcs in the network.
>>>
>>> Then I updated one of the pcs to Ubuntu 6.06 (CUPS 1.2.2) and the
>>> result is that not only I cannot any more print from the updated pc
>>> but also, if I try, I prevent the other pcs from printing too, until
>>> I reboot the router.
>>>
>>> Browsing the Italian Ubuntu forums I see that this problem is known,
>>> and the suggested solution is to downgrade to CUPS 1.2.0. I did so
>>> and now I am again able to print as before.
>>>
>>> This message is to inform you, just in case you weren't yet aware of
>>> this problem.
>> We are not aware of any problems of this nature.  It would be more
>> useful at this point to know if the problem occurs with 1.2.3, and
>> what version of CUPS is being used on the 192.168.2.1 system.
>>
> I uninstalled 1.2.0 (getting a lot of error messages) and installed 1.2.3. Same problem. Either the job stays 'printing' forever with nothing coming out, or the printer goes 'stopped' and when restarted goes 'stopped' again.
> 
> Then I uninstalled 1.2.3 (lots of error messages again) and tried to reinstall 1.2.0. Now I have the same problem with 1.2.0 too. So I now cannot print at all from this pc.
> 
> For what concerns the 192.168.2.1 system, the USR5461 router, it is a small box by US robotics. It comes with firmware preinstalled and I have no information about it. I don't think it runs CUPS.

I'd be surprised, then, to see a CUPS-style URI to access the port on
the router - it should normally be something like
"ipp://ip-address/ipp", assuming that the router even supports IPP.

Does the router show up in an SNMP scan?  Try running:

     /usr/lib/cups/backend/snmp

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Document Software          http://www.easysw.com