/usr/bin

The LP print service user commands 

/etc/lp

A hierarchy of LP server configuration files 

/usr/share/lib

The terminfo database directory

/usr/lib/print

The lp conversion scripts, in.lpd daemon and the printd daemon. The printd daemon transfers all pending jobs in the/var/spool/print directory once per minute. When no jobs are remaining to transfer, it exits.

/usr/sbin

The LP print service administrative commands 

/usr/lib/lp

The lpsched program, binary files, PostScript filters, and the model directory, which contains the standard printer interface program.

/var/lp/logs

LP log files such as lpsched.n, which includes messages from lpsched and requests.n, which includes information about completed print requests.

/var/spool/lp

The spooling directory where files are queued for printing 

/var/spool/print

The LP print service client-side request staging area