Lots of information. I hope it helps.
file:///var/log/cups/error_log
I [22/Dec/2010:12:08:23 -0500] Saving job cache file "/var/cache/cups/job.cache"...
I [22/Dec/2010:13:52:51 -0500] Listening to ::1:631 (IPv6)
I [22/Dec/2010:13:52:51 -0500] Listening to 127.0.0.1:631 (IPv4)
I [22/Dec/2010:13:52:51 -0500] Listening to /var/run/cups/cups.sock (Domain)
I [22/Dec/2010:13:52:51 -0500] Remote access is disabled.
I [22/Dec/2010:13:52:51 -0500] Loaded configuration file "/etc/cups/cupsd.conf"
I [22/Dec/2010:13:52:51 -0500] Using default TempDir of /var/spool/cups/tmp...
I [22/Dec/2010:13:52:51 -0500] Configured for up to 100 clients.
I [22/Dec/2010:13:52:51 -0500] Allowing up to 100 client connections per host.
I [22/Dec/2010:13:52:51 -0500] Using policy "default" as the default!
I [22/Dec/2010:13:52:51 -0500] Full reload is required.
I [22/Dec/2010:13:52:51 -0500] Loaded MIME database from "/usr/share/cups/mime" and "/etc/cups": 35 types, 42 filters...
I [22/Dec/2010:13:52:51 -0500] Loading job cache file "/var/cache/cups/job.cache"...
I [22/Dec/2010:13:52:51 -0500] Full reload complete.
I [22/Dec/2010:13:52:51 -0500] Cleaning out old temporary files in "/var/spool/cups/tmp"...
I [22/Dec/2010:13:52:52 -0500] Listening to ::1:631 on fd 6...
I [22/Dec/2010:13:52:52 -0500] Listening to 127.0.0.1:631 on fd 7...
I [22/Dec/2010:13:52:52 -0500] Listening to /var/run/cups/cups.sock on fd 8...
I [22/Dec/2010:13:52:52 -0500] Resuming new connection processing...
I [22/Dec/2010:13:52:53 -0500] Subscription 51 has expired...
I [22/Dec/2010:13:52:53 -0500] Subscription 52 has expired...
I [22/Dec/2010:13:52:53 -0500] Saving subscriptions.conf...
I [22/Dec/2010:13:53:25 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:02:35 -0500] [Job

] Request file type is text/plain.
I [22/Dec/2010:14:02:35 -0500] [Job 21] Adding start banner page "none".
I [22/Dec/2010:14:02:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:02:35 -0500] [Job 21] Adding end banner page "none".
I [22/Dec/2010:14:02:35 -0500] [Job 21] File of type text/plain queued by "robert".
I [22/Dec/2010:14:02:35 -0500] [Job 21] Queued on "MFC-3240C" by "robert".
I [22/Dec/2010:14:02:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:02:35 -0500] [Job 21] Started filter /usr/lib/cups/filter/texttops (PID 974)
I [22/Dec/2010:14:02:35 -0500] [Job 21] Started filter /usr/lib/cups/filter/pstops (PID 975)
I [22/Dec/2010:14:02:35 -0500] [Job 21] Started filter /usr/lib/cups/filter/brlpdwrapperMFC3240C (PID 976)
I [22/Dec/2010:14:02:35 -0500] [Job 21] Started backend /usr/lib/cups/backend/usb (PID 977)
I [22/Dec/2010:14:02:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:02:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:03:00 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:03:00 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:03:00 -0500] Saving subscriptions.conf...
E [22/Dec/2010:14:03:02 -0500] PID 976 (/usr/lib/cups/filter/brlpdwrapperMFC3240C) stopped with status 31!
I [22/Dec/2010:14:03:02 -0500] Hint: Try setting the LogLevel to "debug" to find out more.
E [22/Dec/2010:14:03:02 -0500] [Job 21] Job stopped due to filter errors.
I [22/Dec/2010:14:03:02 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:03:02 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] [Job

] Request file type is text/plain.
I [22/Dec/2010:14:05:31 -0500] [Job 22] Adding start banner page "none".
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] [Job 22] Adding end banner page "none".
I [22/Dec/2010:14:05:31 -0500] [Job 22] File of type text/plain queued by "robert".
I [22/Dec/2010:14:05:31 -0500] [Job 22] Queued on "MFC-3240C" by "robert".
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] [Job 22] Started filter /usr/lib/cups/filter/texttops (PID 1065)
I [22/Dec/2010:14:05:31 -0500] [Job 22] Started filter /usr/lib/cups/filter/pstops (PID 1066)
I [22/Dec/2010:14:05:31 -0500] [Job 22] Started filter /usr/lib/cups/filter/brlpdwrapperMFC3240C (PID 1067)
I [22/Dec/2010:14:05:31 -0500] [Job 22] Started backend /usr/lib/cups/backend/usb (PID 1068)
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:31 -0500] Saving subscriptions.conf...
E [22/Dec/2010:14:05:35 -0500] PID 1067 (/usr/lib/cups/filter/brlpdwrapperMFC3240C) stopped with status 31!
I [22/Dec/2010:14:05:35 -0500] Hint: Try setting the LogLevel to "debug" to find out more.
E [22/Dec/2010:14:05:35 -0500] [Job 22] Job stopped due to filter errors.
I [22/Dec/2010:14:05:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:14:05:35 -0500] Saving subscriptions.conf...
I [22/Dec/2010:15:27:57 -0500] Scheduler shutting down normally.
I [22/Dec/2010:15:27:57 -0500] Saving job cache file "/var/cache/cups/job.cache"...
I [22/Dec/2010:17:11:37 -0500] Listening to ::1:631 (IPv6)
I [22/Dec/2010:17:11:38 -0500] Listening to 127.0.0.1:631 (IPv4)
I [22/Dec/2010:17:11:38 -0500] Listening to /var/run/cups/cups.sock (Domain)
I [22/Dec/2010:17:11:38 -0500] Remote access is disabled.
I [22/Dec/2010:17:11:38 -0500] Loaded configuration file "/etc/cups/cupsd.conf"
I [22/Dec/2010:17:11:38 -0500] Using default TempDir of /var/spool/cups/tmp...
I [22/Dec/2010:17:11:38 -0500] Configured for up to 100 clients.
I [22/Dec/2010:17:11:38 -0500] Allowing up to 100 client connections per host.
I [22/Dec/2010:17:11:38 -0500] Using policy "default" as the default!
I [22/Dec/2010:17:11:38 -0500] Full reload is required.
I [22/Dec/2010:17:11:38 -0500] Loaded MIME database from "/usr/share/cups/mime" and "/etc/cups": 35 types, 42 filters...
I [22/Dec/2010:17:11:38 -0500] Loading job cache file "/var/cache/cups/job.cache"...
I [22/Dec/2010:17:11:38 -0500] Full reload complete.
I [22/Dec/2010:17:11:38 -0500] Cleaning out old temporary files in "/var/spool/cups/tmp"...
I [22/Dec/2010:17:11:38 -0500] Listening to ::1:631 on fd 6...
I [22/Dec/2010:17:11:38 -0500] Listening to 127.0.0.1:631 on fd 7...
I [22/Dec/2010:17:11:38 -0500] Listening to /var/run/cups/cups.sock on fd 8...
I [22/Dec/2010:17:11:38 -0500] Resuming new connection processing...
I [22/Dec/2010:17:12:13 -0500] Saving subscriptions.conf...