AIX - To clear print queue and restart qdaemon

# enq -sAW

# ps -eaf | grep {queue name}
# kill -9 {queue name}

# cd /var/spool/lpd/qdir
# remove all queues

# cd /var/spool/lpd/stat
# remove the specified queue entry

# stopsrc -s qdaemon
# startsrc -s qdaemon