I have a Lexmark Prevail Pro705 printer, which has worked correctly. I've been using original Lexmark drivers for debian based distributions. It stopped working correctly some time ago, unfortunately I am not sure when, because it was not used lately (my guess is late summer). Specifically it means that the printer fails to print most of the time. Sometimes after restarting cups it prints OK. The printer fails with "Printer Error. The printer cannot communicate with the computer." I tried to debug the problem and it seems that the custom Lexmark backend (lxnet) crashes. Note that I am using wireless connections. I've installed newer drivers (lexmark-inkjet-09-driver-1.5-1.i386.deb.sh.tar.gz), which can be found at http://www1.lexmark.com/products/view/All-in-Ones/Lexmark-Prevail-Pro705/catId=cat10004-category&prodId=5471-product upgraded the firmware and also tried newer cups without success. Reproducible: Sometimes Steps to Reproduce: 1.Print anything on the Lexmark printer 2. 3. Actual Results: Printer Error. The printer cannot communicate with the computer. Expected Results: A couple of printer pages Portage 2.1.8.3 (default/linux/x86/10.0, gcc-4.4.4, glibc-2.11.2-r0, 2.6.34-gentoo-r6 i686) ================================================================= System uname: Linux-2.6.34-gentoo-r6-i686-Intel-R-_Core-TM-2_Duo_CPU_E7400_@_2.80GHz-with-gentoo-1.12.13 Timestamp of tree: Sat, 30 Oct 2010 10:00:01 +0000 app-shells/bash: 4.1_p7 dev-java/java-config: 2.1.11 dev-lang/python: 2.6.5-r3, 3.1.2-r4 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 1.12.13 sys-apps/sandbox: 2.3-r1 sys-devel/autoconf: 2.13, 2.65-r1 sys-devel/automake: 1.8.5-r4, 1.9.6-r2, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.4-r2 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.81-r2 virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="x86" ACCEPT_LICENSE="*" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=i686 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/X11/xkb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=i686 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests buildpkg distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="pl_PL.UTF-8" LC_ALL="pl_PL.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="pl en" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext X a52 aac acpi alsa artworkextra berkdb bindist bzip2 cli consolekit cpudetection cracklib crypt cups cxx dbus dri dvb dvd exif extras ffmpeg fortran gdbm gif gnutls guile hal iconv ipv6 jack java jpeg libnotify lm_sensors mmx mmxext mng modules mp3 mudflap ncurses networking nls nptl nptlonly nsplugin opengl openmp pam pch pcre perl png pppd python qt3support qt4 readline session sse sse2 ssl ssse3 svg symlink sysfs tcpd threads thunar tiff truetype unicode usb vcd vorbis win32codecs x264 x86 xcomposite xorg xvid xvmc zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="pl en" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="intel" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Created attachment 254351 [details] Cups error log
We can't really help you with these debian packages... there are too many things that might go wrong. Please check if the printer is supported by any of the open source packages. If not- you could open a bug asking for a gentoo package of the driver. Given the amount of outstanding requests and the understaffing of the printing team, I dont see much hope though...