Please start system-config-printer using the command line system-config-printer --debug 2>&1 | tee log.txt
and do the same attempts to set up your printer as before, one with the DNS-SD/IPP choice and once with IPP driverless. After that please attach log.txt (do not compress) to this bug report. Try also the following: Run the command driverless You get some lines of output. Each line is the URI (Unified Resource Identifier) of one of the printers in your network which supports driverless printing. Is there one corresponding to your HP Color LaserJet MFP M476dn? You recognize it if it by whether it contains the host name, IP address, make, or model name of the printer. Have you found the correct URI? Then run lpadmin -p LJM476IPP -E -v URI -m everywhere replacing URI by the URI you have found with the "driverless" command. This creates a print queue for your printer, using driverless IPP network printing. Please post all screen output here. Does this print queue work? Can you also attach (in a separate comment) your /etc/cups/ppd/LJM476IPP.ppd file? Please run also ipptool -tv URI get-printer-attributes.test > ipp-attrs.txt replacing URI again by your printer's URI and attach (in another comment) ipp-attrs.txt. Please do not compress any of your attachments nor package them together. Attach them one-by-one. ** Changed in: system-config-printer (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to system-config-printer in Ubuntu. https://bugs.launchpad.net/bugs/1707193 Title: adding printer with IPP network printer via DNS-DS fails due to "There was an error during the CUPS operation: 'server-error-internal-error'" Status in system-config-printer package in Ubuntu: Incomplete Bug description: Adding a Hewlett-Packard HP Color LaserJet MFP M476dn as IPP network printer via DNS-DS fails due to "There was an error during the CUPS operation: 'server-error-internal-error'". The error message is unhelpful and can't be copied. The output of the console is > system-config-printer (system-config-printer.py:21002): Gtk-CRITICAL **: gtk_tree_store_insert_after: assertion 'G_NODE (sibling->user_data)->parent == G_NODE (parent->user_data)' failed (system-config-printer.py:21002): Gtk-CRITICAL **: gtk_tree_store_set_value: assertion 'VALID_ITER (iter, tree_store)' failed (system-config-printer.py:21002): Gtk-CRITICAL **: gtk_tree_store_set_value: assertion 'VALID_ITER (iter, tree_store)' failed (system-config-printer.py:21002): Gtk-WARNING **: Failed to fetch network locations: Timeout was reached Caught non-fatal exception. Traceback: File "/usr/share/system-config-printer/newprinter.py", line 4196, in getNPPPD ppd = cups.PPD(f) RuntimeError: ppdOpenFile failed Continuing anyway.. which looks like the error message could be improved dramatically. The same issue happens for Driverless IPP. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: system-config-printer 1.5.7+20160812-0ubuntu9 ProcVersionSignature: Ubuntu 4.10.0-28.32-generic 4.10.17 Uname: Linux 4.10.0-28-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.4-0ubuntu4.5 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Jul 28 14:40:51 2017 InstallationDate: Installed on 2015-12-12 (594 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lpstat: Gerät für HP_Color_LaserJet_MFP_M476dn: hp:/usb/HP_Color_LaserJet_MFP_M476dn?serial=CNB8H415Z5 Gerät für QL-570: usb://Brother/QL-570?serial=F4Z735525 MachineType: LENOVO 20221 PackageArchitecture: all Papersize: a4 PpdFiles: QL-570: Brother QL-570 CUPS v1.1 HP_Color_LaserJet_MFP_M476dn: HP Color LaserJet Pro MFP M476 Postscript (recommended) ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-28-generic root=UUID=791b47e7-915d-4d5a-bce0-d7e9b660a2ab ro rootflags=subvol=ubuntu-main-root SourcePackage: system-config-printer UpgradeStatus: Upgraded to zesty on 2017-05-01 (88 days ago) dmi.bios.date: 07/12/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 71CN51WW(V1.21) dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad Z500 Touch dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch: dmi.product.name: 20221 dmi.product.version: Lenovo IdeaPad Z500 Touch dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/1707193/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp