Now, about https://wiki.ubuntu.com/DebuggingPrintingProblems and the section "USB printer does not print or prints garbage" (I guess I already went through this before posting) :
btw, the system's current state is : - cups service stopped - usblp reloaded, so that I could have /dev/usb/lp0 in order to run the tests I posted previously. So I modprobe -r usblp but then service cups start seems to start, but lpstat -t does not return ? So I restopped cups, reloaded usblp, restarted cups, and this time lpstat -t returned ? But you rely on libusb now ? weird, weird ? anyway, I am running the tests below with cups enabled and usblp loaded - just to be accurate. 1 - HP Desjet 710C, no network connection 2 : * cancel -a : done * lpadmin -p HP_DESKJET_710C -o usb-unidir-default=true : done * lp lines.ps (containing 56 lines) : I am remembering, I already ran this test : it fails, the printing stops some lines before the last one - it is not always the same (random) * lpadmin -p HP_DESKJET_710C -R usb-unidir-default : done BTW, here I have (as after each printing) : root@rubedo:~# lpstat -t scheduler is running system default destination: HP_DESKJET_710C device for HP_DESKJET_710C: usb://HP/DESKJET%20710C HP_DESKJET_710C accepting requests since Mon 23 Dec 2013 08:21:00 PM CET printer HP_DESKJET_710C is idle. enabled since Mon 23 Dec 2013 08:21:00 PM CET Sending data to printer. so before running the last test I am restarting cups : root@rubedo:~# service cups restart cups stop/waiting cups start/running, process 9756 root@rubedo:~# lpstat -t scheduler is running system default destination: HP_DESKJET_710C device for HP_DESKJET_710C: usb://HP/DESKJET%20710C HP_DESKJET_710C accepting requests since Mon 23 Dec 2013 08:21:00 PM CET printer HP_DESKJET_710C is idle. enabled since Mon 23 Dec 2013 08:21:00 PM CET clean ! 3 : * no need for cancel -a, the queue is empty, cups has been reset * lpadmin -p HP_DESKJET_710C -o usb-no-reattach-default=true : done * lp lines.ps : no way ! it stopped at line #54 (as the previous test did) * lpadmin -p HP_DESKJET_710C -R usb-no-reattach-default -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258919 Title: 067b:2305 printing issue with parallel-to-usb adapter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1258919/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs