I have a similar problem with HP LaserJet 6L printer on x86 machine. It simply does not work and it does not even print a test page or anything. I use Xubuntu and I used system_config_printer.py to add the printer and configure it. Debugging info: $ lsmod | grep lp lp 12580 0 parport 37448 3 ppdev,lp,parport_pc $ dmesg | grep par [ 12.971031] Booting paravirtualized kernel on bare hardware [ 12.992292] PCI: Transparent bridge - 0000:00:1e.0 [ 27.134460] parport_pc 00:08: reported by Plug and Play ACPI [ 27.134506] parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA] [ 28.566243] lp0: using parport0 (interrupt-driven). [ 58.806237] ReiserFS: sda3: journal params: device sda3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 64.155813] ppdev: user-space parallel port driver $ lpinfo -v network socket network beh direct hal direct hpfax direct hp network http network ipp network lpd direct parallel:/dev/lp0 file cups-pdf:/ direct scsi network smb $ tail -30 /var/log/cups/error_log D [10/Jan/2008:11:02:31 +0000] cupsdAuthorize: No authentication data provided. D [10/Jan/2008:11:02:31 +0000] Get-Printer-Attributes ipp://localhost/printers/LaserJet_6L D [10/Jan/2008:11:02:31 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok) D [10/Jan/2008:11:02:31 +0000] cupsdReadClient: 8 GET /printers/LaserJet_6L.ppd HTTP/1.1 D [10/Jan/2008:11:02:31 +0000] cupsdAuthorize: No authentication data provided. D [10/Jan/2008:11:02:31 +0000] cupsdReadClient: 8 POST / HTTP/1.1 D [10/Jan/2008:11:02:31 +0000] cupsdAuthorize: No authentication data provided. D [10/Jan/2008:11:02:31 +0000] Get-Jobs ipp://localhost/jobs/ D [10/Jan/2008:11:02:31 +0000] cupsdProcessIPPRequest: 8 status_code=0 (successful-ok) D [10/Jan/2008:11:04:58 +0000] cupsdAcceptClient: 10 from localhost (Domain) D [10/Jan/2008:11:04:58 +0000] cupsdReadClient: 10 POST / HTTP/1.1 D [10/Jan/2008:11:04:58 +0000] cupsdAuthorize: No authentication data provided. D [10/Jan/2008:11:04:58 +0000] CUPS-Get-Devices D [10/Jan/2008:11:04:58 +0000] [CGI] /usr/lib/cups/daemon/cups-deviced started - PID = 6328 I [10/Jan/2008:11:04:58 +0000] Started "/usr/lib/cups/daemon/cups-deviced" (pid=6328) D [10/Jan/2008:11:04:58 +0000] cupsdSendCommand: 10 file=11 D [10/Jan/2008:11:04:58 +0000] [cups-deviced] Added device "socket"... D [10/Jan/2008:11:04:58 +0000] [cups-deviced] Added device "hp"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "hpfax"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "lpd"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "ipp"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "beh"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "scsi"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "parallel:/dev/lp0"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "http"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "smb"... D [10/Jan/2008:11:04:59 +0000] [cups-deviced] Added device "cups-pdf:/"... D [10/Jan/2008:11:05:00 +0000] [cups-deviced] Added device "hal"... D [10/Jan/2008:11:05:00 +0000] cupsdCloseClient: 10 D [10/Jan/2008:11:05:00 +0000] PID 6328 (/usr/lib/cups/daemon/cups-deviced) exited with no errors. $ tail -10 /var/log/messages Jan 10 12:23:15 sky kernel: [ 73.391857] agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. Jan 10 12:23:15 sky kernel: [ 73.391876] agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode Jan 10 12:23:15 sky kernel: [ 73.391901] agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode Jan 10 12:43:01 sky -- MARK -- Jan 10 12:48:18 sky python: hp-probe[6274]: warning: No devices found on the 'par' bus. If this isn't the result you are expecting, Jan 10 12:48:18 sky python: hp-probe[6274]: warning: check to make sure your devices are properly connected and powered on. Jan 10 12:48:50 sky python: hp-probe[6278]: warning: No devices found on the 'net' bus. If this isn't the result you are expecting, Jan 10 12:48:50 sky python: hp-probe[6278]: warning: check your network connections and make sure your internet Jan 10 12:48:50 sky python: hp-probe[6278]: warning: firewall software is disabled. Jan 10 13:03:02 sky -- MARK -- Here is a dump from PrintingBugInfoScript (https://wiki.ubuntu.com/PrintingBugInfoScript): ProblemType: printingbuginfo v2.0: printingbug+locallpt (https://wiki.ubuntu.com/PrintingBugInfoScript) CupsConfiguredDevices: device for LaserJet_6L: parallel:/dev/lp0 CupsConfiguredPPDs: LaserJet_6L: HP LaserJet 6L Foomatic/ljet4 (recommended) Date: Thu Jan 10 12:40:10 2008 DesktopEnvironment: none DistroRelease: Ubuntu 7.10 EtcPapersize: letter InstalledPrintingPackages: ii cupsys 1.3.2-1ubuntu7.3 Common UNIX Printing System(tm) - server ii cupsys-driver-gutenprint 5.0.1-0ubuntu8 printer drivers for CUPS ii foo2zjs 20070625-0ubuntu1.1 Support for printing to ZjStream-based printers ii foomatic-db 20070919-0ubuntu3 OpenPrinting printer support - database ii foomatic-db-engine 3.0.2-20070719-0ubuntu4 OpenPrinting printer support - programs ii foomatic-db-hpijs 20070813-0ubuntu1 OpenPrinting printer support - database for HPIJS driver ii foomatic-filters 3.0.2-20070719-0ubuntu1 OpenPrinting printer support - filters ii ghostscript 8.61.dfsg.1~svn8187-0ubu The GPL Ghostscript PostScript/PDF interpreter ii hpijs 2.7.7+2.7.7.dfsg.1-0ubun HP Linux Printing and Imaging - gs IJS driver (hpijs) ii hplip 2.7.7.dfsg.1-0ubuntu5 HP Linux Printing and Imaging System (HPLIP) ii libgnomeprint2.2-0 2.18.2-0ubuntu1 The GNOME 2.2 print architecture - runtime files ii libppd0 2:0.10-6 postscript PPD file library ii min12xxw 0.0.9-1build1 Printer driver for KonicaMinolta PagePro 1[234]xxW ii openprinting-ppds 20070919-0ubuntu3 OpenPrinting printer support - PostScript PPD files ii pnm2ppa 1.12-16 PPM to PPA converter ii pxljr 1.1-0ubuntu1 Driver for HP's Color LaserJet 35xx/36xx color laser printers ii splix 1.0.1.1-0ubuntu2 Driver for Samsung's SPL2 (bw) and SPLc (color) laser printers ii system-config-printer 0.7.75+svn1653-0ubuntu2 Printer configuration GUI Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8, LC_PAPER=en_US.UTF-8 LptPrinterDevices: crw-rw---- 1 root lp 6, 0 Jan 10 12:22 /dev/lp0 crw-rw-rw- 1 lp lp 99, 0 Jan 10 12:23 /dev/parport0 LptPrinterIEEE1284Id: /dev/parport0: LptPrinterKernelModules: ppdev 10244 0 lp 12580 0 parport 37448 3 ppdev,lp,parport_pc Uname: Linux sky 2.6.22-14-generic #1 SMP Tue Dec 18 08:02:57 UTC 2007 i686 GNU/Linux