mixture between printers from /etc/printcap and printers defined in smb.conf
(with own printcommand); printers from printcap work others not!
see output (there should be the printer [PDF-Screen]):

jukebox:/etc/samba # smbclient -L localhost
Password:
Domain=[EBEWEAT] OS=[Unix] Server=[Samba 3.0.9-SUSE]

        Sharename       Type      Comment
        ---------       ----      -------
        dr-dv01         Printer   OPTRA T 614 EDV-Lager
        IPC$            IPC       IPC Service (Samba 3.0.9-SUSE)
        ADMIN$          IPC       IPC Service (Samba 3.0.9-SUSE)
Domain=[EBEWEAT] OS=[Unix] Server=[Samba 3.0.9-SUSE]

        Server               Comment
        ---------            -------


/etc/samba/smb.conf:
--------------------
[global]
       # debuglevel 9
        workgroup = EBEWEAT
        netbiosname = jukebox
        password server = *
        security = DOMAIN
        encrypt passwords = Yes
        map to guest = Bad User
        password server = *
        name resolve order = lmhosts wins bcast host
        printing = LPRNG
        printcap name = /etc/printcap
        # load printers = Yes
        time server = Yes
        socket options = TCP_NODELAY SO_KEEPALIVE IPTOS_LOWDELAY
        os level = 100
        preferred master = True
        wins support = Yes
        kernel oplocks = No

[wolfgang]
        path = /srv/ftp/pub/mp3
        browseable = no


[printers]
        comment = All Printers
        path = /tmp
        create mask = 0700
        printable = Yes
        browseable =Yes

[PDF-screen]
        comment = PDF-Writer (screen optimized)
        path = /tmp/pdf
        read only = No
        create mask = 0777
        guest ok = Yes
        printable = Yes
        print command = /usr/local/bin/pdf-sender %s %u screen