The error_log seems to be OK. What you should try is the "Generic PCL 5e printer" if your printer is monochrome or the "Generic PCL 5c printer" if your printer is color.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1377173 Title: Brother MFC9840CDW Postscript driver fails to initialize for printing as Postscript Status in cups package in Ubuntu: Expired Bug description: Printer Driver: Brother MFC9840CDW Foomatic/Postscript (color, 2-sided printing) Result when printing a page is plain text output like the following "%!PS-Adobe-3.0 %Produced by poppler ..." followed by many form feeds. possible cause: The printer driver fails to initilize the printer with the right control sequence. reproducible: always ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: cups 1.7.2-0ubuntu1.2 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 CurrentDesktop: KDE Date: Fri Oct 3 16:01:51 2014 Lpstat: device for MFC9840CDW: socket://10.0.0.20:9100 device for MFC9840CDW_pxlcolor: socket://10.0.0.20:9100 MachineType: Packard Bell DOTS E2 Papersize: a4 PpdFiles: MFC9840CDW: Brother MFC9840CDW Foomatic/Postscript MFC9840CDW_pxlcolor: Brother MFC9840CDW Foomatic/pxlcolor ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-36-generic root=UUID=16250f8e-725d-430c-8ccc-95387d8f9ba7 ro rootflags=subvol=@ quiet splash vt.handoff=7 SourcePackage: cups UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/22/2011 dmi.bios.vendor: Packard Bell dmi.bios.version: V3.16(DDR3) dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SJE02_PT_E dmi.board.vendor: Packard Bell dmi.board.version: V3.16(DDR3) dmi.chassis.type: 10 dmi.chassis.vendor: Packard Bell dmi.chassis.version: V3.16(DDR3) dmi.modalias: dmi:bvnPackardBell:bvrV3.16(DDR3):bd04/22/2011:svnPackardBell:pnDOTSE2:pvrV3.16(DDR3):rvnPackardBell:rnSJE02_PT_E:rvrV3.16(DDR3):cvnPackardBell:ct10:cvrV3.16(DDR3): dmi.product.name: DOTS E2 dmi.product.version: V3.16(DDR3) dmi.sys.vendor: Packard Bell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1377173/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp