Hi, There seems to be a timing window with this HP product family (ie: clj2550, clj2840, lj3050, lj3055, clj4730mfp) that makes the print job 3-4 times slower than normal. This issue seems to be PC hardware specific and USB 2.0 specific. Fortunately there is a perfectly good work around.
In the data/models/models.dat file change the "io-mode=4" to "io-mode=1" for your printer record. Note, your printer record should match your URI (ie: [hp_color_laserjet_2550] or [hp_color_laserjet_2550_series]). This will change the USB printing data transport from 1284.4 to "raw". The models.dat changes should be in the next HPLIP release. -dave > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Brad Campbell > Sent: Sunday, August 26, 2007 2:38 AM > To: hplip-help@lists.sourceforge.net > Subject: [Hplip-help] _very_ slow printing using hplip 2.7.7 > / libusb / LJ2550 / Debian 4.0 > > G'day all, > > This has been driving me _insane_ for months now, and I've > found a way around it (which is remove hplip and get cups to > use /dev/usb/lp0).. I thought I may provide some information > and see whether anyone can help me diagnose the problem however. > > The simple fault description is printing via hplip can take > up to 45 minutes to spit out one full colour page, whereas > cat page.ps > /dev/usb/lp0 takes less than 60 seconds. Cups > configured to use the usb printer directly is the same.. less > than 60 seconds. (where page.ps is a Postscript 2 file of about 35MB) > > This has been happening since the version of hplip in Debian > 3.1. I upgraded to 4.0 (1.6.10 I think) and then removed all > that and installed from source the lastest (2.7.7). No > matter, the problem persists. > > I've tried hanging the printer directly on the motherboard > USB ports, via a USB 2.0 hub and via a USB 1.1 hub.. no > difference. (well, with the USB 1.1 hub cat page.ps > > /dev/usb/lp0 takes a little > longer..) > > hp-check[12115]: info: : > Initializing. Please wait... > scheduler is running > > 1.2.7 > > Linux tv 2.6.22-rc7 #10 PREEMPT Sun Aug 26 12:35:44 GST 2007 > i686 GNU/Linux > > hp-check[12115]: info: : > hp-check[12115]: info: :--------------- > hp-check[12115]: info: :| SYSTEM INFO | > hp-check[12115]: info: :--------------- > hp-check[12115]: info: : > hp-check[12115]: info: :[01mBasic system information:[0m > hp-check[12115]: info: :Linux tv 2.6.22-rc7 #10 PREEMPT Sun > Aug 26 12:35:44 GST 2007 i686 GNU/Linux > hp-check[12115]: info: : > hp-check[12115]: info: :[01mDistribution:[0m > hp-check[12115]: info: :debian 4.0 > hp-check[12115]: info: :[01m > HPOJ running?[0m > hp-check[12115]: info: :No, HPOJ is not running (OK). > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking Python version...[0m > hp-check[12115]: info: :OK, version 2.4.4 installed > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking PyQt version...[0m > hp-check[12115]: info: :OK, version 3.16 installed. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking SIP version...[0m > hp-check[12115]: info: :OK, Version 4.4.5 installed > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for CUPS...[0m > hp-check[12115]: info: :Status: scheduler is running > hp-check[12115]: info: :Version: 1.2.7 > hp-check[12115]: info: : > hp-check[12115]: info: :---------------- > hp-check[12115]: info: :| DEPENDENCIES | > hp-check[12115]: info: :---------------- > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: cups - > Common Unix Printing System...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > cups-devel- Common Unix Printing System development files...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: gcc - > GNU Project C and C++ Compiler...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > GhostScript - PostScript and PDF language interpreter and > previewer...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > libcrypto - OpenSSL cryptographic library...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: libjpeg > - JPEG library...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > libnetsnmp-devel - SNMP networking library development files...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > libpthread - POSIX threads library...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: libtool > - Library building support services...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: libusb - > USB library...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: make - > GNU make utility to maintain groups of programs...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: PIL - > Python Imaging Library (required for commandline scanning > with hp-scan)...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: ppdev - > Parallel port support kernel module....[0m > error: NOT FOUND! This is a REQUIRED dependency. Please make > sure that this dependency is installed before installing or > running HPLIP. > hp-check[12115]: info: :To install this dependency, execute > these commands: > hp-check[12115]: info: :su -c "modprobe ppdev" > hp-check[12115]: info: :su -c cp -f /etc/modules /etc/modules.hplip > hp-check[12115]: info: :echo ppdev | su -c tee -a /etc/modules > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: PyQt - > Qt interface for Python...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > python-devel - Python development files...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: Python > 2.3 or greater - Required for fax functionality...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: Python > 2.2 or greater - Python programming language...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > Reportlab - PDF library for Python...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: SANE - > Scanning library...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: SANE - > Scanning library development files...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: > scanimage - Shell scanning program...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for dependency: xsane - > Graphical scanner frontend for SANE...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: :| HPLIP INSTALLATION | > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :[01mCurrently installed HPLIP version...[0m > hp-check[12115]: info: :HPLIP 2.7.7 currently installed in > '/usr/share/hplip'. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mCurrent contents of > '/etc/hp/hplip.conf' file:[0m > hp-check[12115]: info: :# hplip.conf. Generated from > hplip.conf.in by configure. > > [hpssd] > # Note: hpssd does not support dynamic ports > # Port 2207 is the IANA assigned port for hpssd > port=2207 > > [hplip] > version=2.7.7 > > [dirs] > home=/usr/share/hplip > run=/var/run > ppd=/usr/share/ppd/hpijs/HP > ppdbase=/usr/share/ppd/hpijs > doc=/usr/share/doc/hplip-2.7.7 > icon=/usr/share/applications > cupsbackend=/usr/lib/cups/backend > foomatic=/usr/share/foomatic > > # Following values are determined at configure time and > cannot be changed. > [configure] > network-build=yes > pp-build=no > gui-build=yes > scanner-build=yes > fax-build=yes > cups11-build=no > doc-build=yes > shadow-build=no > foomatic-xml-install=no > foomatic-ppd-install=yes > internal-tag=2.7.7.27 > > hp-check[12115]: info: : > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: :| INSTALLED PRINTERS | > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :[01mLaserjet[0m > hp-check[12115]: info: :[01m--------[0m > hp-check[12115]: info: :Type: Unknown > hp-check[12115]: info: :Installed in HPLIP?: No, not using > the hp: or hpfax: CUPS backend. > hp-check[12115]: info: :Device URI: ///dev/null > hp-check[12115]: info: : > hp-check[12115]: info: :[01mLaserjet-BW[0m > hp-check[12115]: info: :[01m-----------[0m > hp-check[12115]: info: :Type: Unknown > hp-check[12115]: info: :Installed in HPLIP?: No, not using > the hp: or hpfax: CUPS backend. > hp-check[12115]: info: :Device URI: ///dev/null > hp-check[12115]: info: : > hp-check[12115]: info: :[EMAIL PROTECTED] > hp-check[12115]: info: :[01m-----------[0m > hp-check[12115]: info: :Type: Unknown > hp-check[12115]: info: :Installed in HPLIP?: No, not using > the hp: or hpfax: CUPS backend. > hp-check[12115]: info: :Device URI: ipp://tv:631/classes/Laserjet > hp-check[12115]: info: : > hp-check[12115]: info: :[01mLJ2550[0m > hp-check[12115]: info: :[01m------[0m > hp-check[12115]: info: :Type: Printer > hp-check[12115]: info: :Installed in HPLIP?: Yes, using the > hp: CUPS backend. > hp-check[12115]: info: :Device URI: > hp:/usb/hp_color_LaserJet_2550_series?serial=00CNHHC16197 > hp-check[12115]: info: :PPD: /etc/cups/ppd/LJ2550.ppd > hp-check[12115]: info: :PPD Description: HP Color LaserJet > 2550 Series Postscript (recommended) > hp-check[12115]: info: :Printer status: printer LJ2550 is > idle. enabled since Sun Aug 26 13:25:38 2007 > hp-check[12115]: info: : > hp-check[12115]: info: :[01mLJ2550-BW[0m > hp-check[12115]: info: :[01m---------[0m > hp-check[12115]: info: :Type: Printer > hp-check[12115]: info: :Installed in HPLIP?: Yes, using the > hp: CUPS backend. > hp-check[12115]: info: :Device URI: > hp:/usb/hp_color_LaserJet_2550_series?serial=00CNHHC16197 > hp-check[12115]: info: :PPD: /etc/cups/ppd/LJ2550-BW.ppd > hp-check[12115]: info: :PPD Description: HP LaserJet Series PCL 6 CUPS > hp-check[12115]: info: :Printer status: printer LJ2550-BW is > idle. enabled since Fri Aug 10 > 22:32:40 2007 > hp-check[12115]: info: : > hp-check[12115]: info: :[EMAIL PROTECTED] > hp-check[12115]: info: :[01m------------[0m > hp-check[12115]: info: :Type: Unknown > hp-check[12115]: info: :Installed in HPLIP?: No, not using > the hp: or hpfax: CUPS backend. > hp-check[12115]: info: :Device URI: ipp://tv:631/printers/LJ2550-BW > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: :| SANE CONFIGURATION | > hp-check[12115]: info: :---------------------- > hp-check[12115]: info: : > hp-check[12115]: info: :[01m'hpaio' in '/etc/sane.d/dll.conf'...[0m > hp-check[12115]: info: :OK, found. SANE backend 'hpaio' is > properly set up. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking output of 'scanimage -L'...[0m > hp-check[12115]: info: : > No scanners were identified. If you were expecting something > different, > check that the scanner is plugged in, turned on and detected by the > sane-find-scanner tool (if appropriate). Please read the documentation > which came with this software (README, FAQ, manpages). > > hp-check[12115]: info: : > hp-check[12115]: info: :--------------------- > hp-check[12115]: info: :| PYTHON EXTENSIONS | > hp-check[12115]: info: :--------------------- > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking 'cupsext' CUPS extension...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking 'pcardext' Photocard > extension...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking 'hpmudext' I/O extension...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking 'scanext' SANE scanning > extension...[0m > hp-check[12115]: info: :OK, found. > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :----------------- > hp-check[12115]: info: :| USB I/O SETUP | > hp-check[12115]: info: :----------------- > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking proper HPLIP I/O setup > (USB I/O only)...[0m > hp-check[12115]: info: :udev "usb_device" access mode: 0664 (OK) > hp-check[12115]: info: : > hp-check[12115]: info: :[01mChecking for permissions of USB > attached printers...[0m > hp-check[12115]: info: :HP Device 0x1c17 at 001:016: > hp-check[12115]: info: : Device URI: > hp:/usb/hp_color_LaserJet_2550_series?serial=00CNHHC16197 > hp-check[12115]: info: : Device node: /dev/bus/usb/001/016 > hp-check[12115]: info: : Mode: 0664 > hp-check[12115]: info: : UID: 0 (root) > hp-check[12115]: info: : GID: 7 (lp) > hp-check[12115]: info: : Device group and mode appear correct. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mIs user 'brad' a member of the > 'lp' group?[0m > hp-check[12115]: info: :Yes (OK) > hp-check[12115]: info: : > hp-check[12115]: info: :[01mIs user 'remote' a member of the > 'lp' group?[0m > hp-check[12115]: info: :Yes (OK) > hp-check[12115]: info: : > hp-check[12115]: info: :[01mIs user 'matt' a member of the > 'lp' group?[0m > hp-check[12115]: info: :Yes (OK) > hp-check[12115]: info: : > hp-check[12115]: info: : > hp-check[12115]: info: :----------- > hp-check[12115]: info: :| SUMMARY | > hp-check[12115]: info: :----------- > hp-check[12115]: info: : > error: 1 error or warning. > hp-check[12115]: info: : > hp-check[12115]: info: :[01mSummary of needed commands to run > to satisfy missing dependencies:[0m > hp-check[12115]: info: :su -c "modprobe ppdev" > hp-check[12115]: info: :su -c cp -f /etc/modules /etc/modules.hplip > hp-check[12115]: info: :echo ppdev | su -c tee -a /etc/modules > hp-check[12115]: info: : > hp-check[12115]: info: :Please refer to the installation > instructions at: > hp-check[12115]: info: > :http://hplip.sourceforge.net/install/index.html > > 7:[EMAIL PROTECTED]:~$ lsusb > Bus 004 Device 001: ID 0000:0000 > Bus 003 Device 001: ID 0000:0000 > Bus 002 Device 001: ID 0000:0000 > Bus 001 Device 016: ID 03f0:1c17 Hewlett-Packard Color LaserJet 2550l > Bus 001 Device 011: ID 058f:9254 Alcor Micro Corp. Hub > Bus 001 Device 010: ID 046d:c505 Logitech, Inc. Cordless > Mouse+Keyboard ReceiverBus 001 Device 009: > ID 0e9c:0000 Streamzap, Inc. Streamzap Remote Control > Bus 001 Device 008: ID 0409:0059 NEC Corp. HighSpeed Hub > Bus 001 Device 005: ID 058f:9380 Alcor Micro Corp. Flash drive > Bus 001 Device 002: ID 0409:0058 NEC Corp. HighSpeed Hub > Bus 001 Device 001: ID 0000:0000 > Bus 001 Device 006: ID 046d:c214 Logitech, Inc. > > > Not sure what to do next really. > > Brad > -- > "Human beings, who are almost unique in having the ability > to learn from the experience of others, are also remarkable > for their apparent disinclination to do so." -- Douglas Adams > > -------------------------------------------------------------- > ----------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and > a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > HPLIP-Help mailing list > HPLIP-Help@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/hplip-help > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ HPLIP-Help mailing list HPLIP-Help@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hplip-help
