debian:/tmp#  /etc/init.d/hplip restart
Stopping HP Linux Printing and Imaging System: hpiod hpssd.
Starting HP Linux Printing and Imaging System: hpiod hpssd.
debian:/tmp#  /etc/init.d/cupsys restart
Restarting Common Unix Printing System: cupsd
Warning: Fake start-stop-daemon called, doing nothing.

Warning: Fake start-stop-daemon called, doing nothing.
.
debian:/tmp# hp-setup

HP Linux Imaging and Printing System (ver. 1.6.10)
Printer/Fax Setup Utility ver. 3.1

Copyright (c) 2003-6 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

0
Unable to connect to HPLIP I/O (hpssd).
error: Unable to connect to HPLIP I/O. Please (re)start HPLIP and try again.
debian:/tmp# hp-probe

HP Linux Imaging and Printing System (ver. 1.6.10)
Printer Discovery Utility ver. 2.2

Copyright (c) 2003-6 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Traceback (most recent call last):
  File "/usr/bin/hp-probe", line 170, in ?
    hpssd_sock.connect((prop.hpssd_host, prop.hpssd_port))
  File "<string>", line 1, in connect
socket.error: (111, 'Connection refused')
debian:/tmp#  /etc/init.d/hplip restart
Stopping HP Linux Printing and Imaging System: hpiod hpssd.
Starting HP Linux Printing and Imaging System: hpiod hpssd.
debian:/tmp#  /etc/init.d/cupsys restart
Restarting Common Unix Printing System: cupsd
Warning: Fake start-stop-daemon called, doing nothing.

Warning: Fake start-stop-daemon called, doing nothing.
.
debian:/tmp# hp-setup

HP Linux Imaging and Printing System (ver. 1.6.10)
Printer/Fax Setup Utility ver. 3.1

Copyright (c) 2003-6 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

0
Unable to connect to HPLIP I/O (hpssd).
error: Unable to connect to HPLIP I/O. Please (re)start HPLIP and try again.