HP Laserjet 1020 gets installed but not printing

[Preetam]

Binary package hint: cups

The HP Laserjet 1020 was identified and ubuntu downloaded hplib and other driver as required and it appeared like a proper installation. But the page is not getting printer though the computer shows as if the page has been processed

ProblemType: Bug
Architecture: i386
CupsErrorLog:

Date: Wed Nov 11 00:58:44 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Lpstat:
 device for HP-Color-LaserJet-CP1515n: dnssd://HP%20Color%20LaserJet%20CP1515n%20(1A1A19)._printer._tcp.local/
 device for HP-LaserJet-1020: hp:/usb/HP_LaserJet_1020?serial=FN0X958
 device for HP-LaserJet-3055: dnssd://HP%20LaserJet%203055%20(93E257)._pdl-datastream._tcp.local/
MachineType: Acer TravelMate 5720
Package: cups 1.4.1-5ubuntu2
Papersize: a4
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PpdFiles:
 HP-LaserJet-1020: HP LaserJet 1020 Foomatic/foo2zjs (recommended)
 HP-Color-LaserJet-CP1515n: HP Color LaserJet cp1515n hpijs pcl3, 3.9.8
 HP-LaserJet-3055: HP LaserJet 3055 hpijs, 3.9.8
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=dfc435bc-925b-49f0-b3ec-4c6aaae30dea ro quiet splash
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: cups
Uname: Linux 2.6.31-14-generic i686
XsessionErrors:
 (gnome-settings-daemon:1623): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1623): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:1913): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:1890): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (nautilus:2668): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
dmi.bios.date: 04/15/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.34
dmi.board.name: Columbia
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.asset.tag: None
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.34:bd04/15/2008:svnAcer:pnTravelMate5720:pvr0100:rvnAcer:rnColumbia:rvrRev:cvnAcer:ct10:cvrN/A:
dmi.product.name: TravelMate 5720
dmi.product.version: 0100
dmi.sys.vendor: Acer

[Preetam (preetam-krish)]

Reading through one of the bugs posted, I ran 'hp-firmware'. Got the following output
preetam@acer-laptop:~$ hp-firmware
warning: Qt/PyQt 4 initialization failed.
error: hp-firmware -u/--gui requires Qt4 GUI support. Entering interactive mode.

HP Linux Imaging and Printing System (ver. 3.9.8)
Firmware Download Utility ver. 2.4

Copyright (c) 2001-9 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.

Using device: hp:/usb/HP_LaserJet_1020?serial=FN0X958

HP Linux Imaging and Printing System (ver. 3.9.8)
System Tray Status Service ver. 2.0

Copyright (c) 2001-9 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.

warning: Qt/PyQt 4 initialization failed.
error: hp-systray requires Qt4 GUI and DBus support. Exiting.
warning: Unable to connect to dbus. Is hp-systray running?
Done.
Now the problem is solved

Thank you