/dev/lp0: permission denied

> I note that cupsd is running as lp, not cupsys.

That's indeed the problem. Did you change anything in /etc/cups/cupsd.conf, in particular the 'User' directive? Can you please attach your file here?

also, please give the output of

  id cupsys

No replies from initial reporter since November.

Anthony, feel free to re-open this bug report if you still have this problem. And if you do, please attach the file "/etc/cups/cupsd.conf" and give the output of the command "id cupsys". Thanks.

antony@officepc:~$ id cupsys
uid=102(cupsys) gid=107(lpadmin) groups=107(lpadmin),7(lp),20(dialout)

This is from the system that I have modified to work.

As requested. NB It seems from the comment at the top that it was generated by the KDE print tool.

Reopened after the info was provided.

Sounds like the KDE print tool mangled the config file

Does it appear on latest Dapper? If no, please close the bug as "Fix released".

Is this still a problem on Dapper or on Edgy?

Your bug lacks information we would need to investigate further. We are now going to close the bug - please reopen if you have more information at hand.

 id cupsys
id: cupsys: No such user

E [14/May/2008:08:39:37 +0700] Unknown User "cupsys" on line 4, ignoring!
E [14/May/2008:08:39:37 +0700] Unknown directive RunAsUser on line 6.
I [14/May/2008:08:39:37 +0700] Listening to :::631 (IPv6)
I [14/May/2008:08:39:37 +0700] Listening to 0.0.0.0:631 (IPv4)
I [14/May/2008:08:39:37 +0700] Listening to /var/run/cups/cups.sock (Domain)
E [14/May/2008:08:39:37 +0700] Unable to include config file "/etc/cups/cupsd-browsing.conf" - No such file or directory
W [14/May/2008:08:39:37 +0700] "AuthClass User" is deprecated; consider using "Require valid-user" on line 23.
W [14/May/2008:08:39:37 +0700] "AuthClass System" is deprecated; consider using "Require user @SYSTEM" on line 27.
E [14/May/2008:08:39:37 +0700] Bad IPP operation name "CUPS-Add-Device" on line 46!
E [14/May/2008:08:39:37 +0700] Bad IPP operation name "CUPS-Delete-Device" on line 46!
I [14/May/2008:08:39:37 +0700] Loaded configuration file "/etc/cups/cupsd.conf"
N [14/May/2008:08:39:37 +0700] Group and SystemGroup cannot use the same groups!
I [14/May/2008:08:39:37 +0700] Resetting Group to "root"...
I [14/May/2008:08:39:37 +0700] Using default TempDir of /var/spool/cups/tmp...
I [14/May/2008:08:39:37 +0700] Configured for up to 100 clients.
I [14/May/2008:08:39:37 +0700] Allowing up to 100 client connections per host.
I [14/May/2008:08:39:37 +0700] Using policy "default" as the default!
I [14/May/2008:08:39:37 +0700] Full reload is required.
I [14/May/2008:08:39:37 +0700] Saving job cache file "/var/cache/cups/job.cache"...
I [14/May/2008:08:39:37 +0700] Loaded MIME database from '/usr/share/cups/mime:/etc/cups': 36 types, 40 filters...
I [14/May/2008:08:39:37 +0700] Loading job cache file "/var/cache/cups/job.cache"...
I [14/May/2008:08:39:37 +0700] Full reload complete.
I [14/May/2008:08:39:37 +0700] Listening to :::631 on fd 4...
I [14/May/2008:08:39:37 +0700] Listening to 0.0.0.0:631 on fd 5...
I [14/May/2008:08:39:37 +0700] Listening to /var/run/cups/cups.sock on fd 6...
I [14/May/2008:08:39:37 +0700] Resuming new connection processing...
I [14/May/2008:09:26:01 +0700] [Job 1800] Adding start banner page "none".
I [14/May/2008:09:26:01 +0700] [Job 1800] Adding job file of type application/postscript.
I [14/May/2008:09:26:01 +0700] [Job 1800] Adding end banner page "none".
I [14/May/2008:09:26:01 +0700] [Job 1800] Queued on "lx300" by "operation".
I [14/May/2008:09:26:01 +0700] [Job 1800] Started filter /usr/lib/cups/filter/pstops (PID 9635)
I [14/May/2008:09:26:01 +0700] [Job 1800] Started filter /usr/lib/cups/filter/foomatic-rip (PID 9636)
I [14/May/2008:09:26:01 +0700] [Job 1800] Started backend /usr/lib/cups/backend/epson (PID 9637)
E [14/May/2008:09:26:02 +0700] [Job 1800] Unable to open parallel port device file: Permission denied
E [14/May/2008:09:26:02 +0700] PID 9637 (/usr/lib/cups/backend/epson) stopped with status 1!
I [14/May/2008:09:26:02 +0700] Hint: Try setting the LogLevel to "debug" to find out more.
E [14/May/2008:09:26:03 +0700] PID 9636 (/usr/lib/cups/filter/foomatic-rip) stopped with status 9!
I [14/May/2008:09:26:03 +0700] Hint: Try setting the LogLevel to "debug" to find out more.
I [14/May/2008:09:26:03 +0700] [J...

this solved it:
http://www.mepislovers.org/forums/showthread.php?t=14723