Problem When looking though the cups error log. /var/log/cups/error_log I found the following error messages: Print-Job: Unauthorized Resume-Printer: Unauthorized PID 29644 (/usr/lib/cups/backend/lpd) stopped with status 1! Resolution To resolve these errors edit printers.conf file. vi /etc/cups/printers.conf Edit the following line: AuthInfoRequired username,password Replace the line with instead: AuthInfoRequired none Restart the CUPS service. /etc/init.d/cups restart service cups restart The error now should not re appear in the logs.