Thank you for your response, Brian. Sorry for late reply. I saw error_log, but I can't understand the meaning... $ sudo cat /var/log/cups/error_log E [11/Nov/2008:21:46:41 +0900] CUPS-Add-Modify-Printer: Unauthorized E [11/Nov/2008:22:23:58 +0900] CUPS-Add-Modify-Printer: Unauthorized $ sudo tail /var/log/cups/access_log localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 327 CUPS-Get-Printers successful-ok localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Classes successful-ok localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 75 CUPS-Get-Default successful-ok localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 327 CUPS-Get-Printers successful-ok localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Classes successful-ok localhost - root [11/Nov/2008:22:25:47 +0900] "POST / HTTP/1.1" 200 75 CUPS-Get-Default successful-ok localhost - - [11/Nov/2008:22:30:06 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Printers successful-ok localhost - - [11/Nov/2008:22:30:06 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Classes successful-ok localhost - - [11/Nov/2008:22:35:04 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Printers successful-ok localhost - - [11/Nov/2008:22:35:04 +0900] "POST / HTTP/1.1" 200 129 CUPS-Get-Classes successful-ok $ <div class="gmail_quote">On Fri, Nov 7, 2008 at 4:28 AM, Brian McKee <<a href="mailto:brian.mckee@gmail.com">brian.mckee@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">On Thu, Nov 6, 2008 at 4:29 AM, a fuji <<a href="mailto:afujihara@gmail.com">afujihara@gmail.com</a>> wrote: > Dear subscribers of ubuntu-users mailing list, > > I'm using two Ricoh printers (Ricoh IPSiO NX730N and Ricoh IPSiO Color 8100) > through the local network. Both printers worked well on Ubuntu 8.04, > but don't work after upgrading to 8.10. > > Printing jobs seem to be tranferred successfully, because the printer icon, > which appears at printing on the gnome panel, appears, after then disappears > without any error message. But, the printers never respond outwardly. > > Although I searched on Google, I couldn't find any useful information about > this issue. > So I have no idea how to print on 8.10 as it did on 8.04. > Does anybody know how to solve this printing problem? </div>Start by looking at the cups logs in /var/log/cups and see if you get any clues.... Brian -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div>