OK. lets see it for a printer named 'dj1' (aliased to 'azucar'),
    parallel DeskJet 850C


    * 1: You have defined the SYSV lp queue for dj1

    * 2: you need a BSD printer interface:

    /etc/printcap

...
#
# DeskJet 850C (BSD lpr queue to SYSV lp)
#
dj1|azucar:\
        :lp=/dev/null:sb:sh:\
        :mx=#20000:\
        :of=/usr/spool/lp/etc/dj1:\
        :lf=/var/adm/lpd-errs:\
        :sd=/var/spool/print/dj1:\
        :af=/var/adm/lpd-acct:
...

    where /usr/spool/lp/etc/dj1:

#!/bin/sh

/bin/lp -s -ddj1


    * 3: You need to create the DB files. This is described at
    LWSRV8.README in CAP documentation

    For this example:

    /usr/local/cap/lib/DBfile  <= this is not the default location
...

"HP DeskJet 850" = (
    FeatureQuery *LanguageLevel '"2"';
    FeatureQuery *PSVersion '"(2015.107) 0"';
    Query ADOSpooler '(spooler)';
    FeatureQuery *?Resolution '300dpi';
    Query ADOIsBinaryOK? 'True';
    FeatureQuery *FreeVM '"1700158"';
    FeatureQuery *TTRasterizer 'Type42';
    FeatureQuery *Product '"(Impressario 2.0)"';
    FeatureQuery *ColorDevice 'True';
    Query ADORamSize '"536870912"';
    FeatureQuery *FaxSupport 'None';
        font (
                Courier,
        );
);
...

    (obtained using the query.ps file included with CAP distribution)


    4: create /usr/local/cap/etc/lwsrv.conf

Library = /usr/local/cap/lib/DB;

Options = (
        DontCollect;
        ProcsetDir /var/adm/cap/procsets;
        FontFile /usr/local/cap/lib/LWPlusFonts;
        LogFile /var/adm/cap/lwsrv.log;
);

"azucar" = (
        include "HP DeskJet 850";
        printerqueue dj1;
);




    5: in your /etc/init.d/cap use something similar to


#!/bin/sh
...
IS_ON=/etc/chkconfig
LOGd=/var/adm/cap
CAP=/usr/local/cap
LIB=/usr/local/cap/lib
ETC=/usr/local/cap/etc
...
if $IS_ON cap ; then
...
        if $IS_ON cap_lwsrv ; then
            ${ECHO} Starting LaserWriter server ...
            ${CAP}/bin/lwsrv8  ${ETC}/lwsrv.conf
        fi
...
fi
...


    6: execute

    chkconfig -f cap on
    chkconfig -f cap_lwsrv on