Cups stopped with status 1!

[suporte at totalservice.inf.br]

# tail -f /var/log/cups/error_log
I [07/May/2005:17:41:46 +0000] New printer 'hp-7960' added by 'root'.
I [07/May/2005:17:41:50 +0000] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid                         =5740)
I [07/May/2005:17:45:39 +0000] Adding start banner page "none" to job 3715.
I [07/May/2005:17:45:39 +0000] Adding end banner page "none" to job 3715.
I [07/May/2005:17:45:39 +0000] Job 3715 queued on 'hp-7960' by 'suporte'.
I [07/May/2005:17:45:39 +0000] Started filter /usr/lib/cups/filter/pstops (PID 5                         959) for job 3715.
I [07/May/2005:17:45:39 +0000] Started filter /usr/lib/cups/filter/foomatic-rip                          (PID 5960) for job 3715.
I [07/May/2005:17:45:39 +0000] Started backend /usr/lib/cups/backend/hp (PID 596                         1) for job 3715.
E [07/May/2005:17:45:46 +0000] PID 5960 stopped with status 1!
I [07/May/2005:17:45:46 +0000] Hint: Try setting the LogLevel to "debug" to find                          out more.