To restore the original configuration, you simply need to restore the original printcap and lpd.perms file and then restart the lpd server. These operations require ROOT permissions.
h4: {89} # su h4: {90} # cd /etc OR cd /usr/local/etc h4: {91} # mv printcap.orig printcap h4: {92} # mv lpd.perms.orig lpd.perms h4: {93} # checkpc -f h4: {94} # lpc reread h4: {95} # rm -rf /var/spool/lpd/lp /var/spool/lpd/lp2 h4: {96} # rm -f /tmp/lp /tmp/lp2