The file You've provided fixes the problem, indeed. Garbage is gone, page comes out clean.
(Tested on Laserjet 4+ over LAN, hpijs driver) -- each printed page starts with line of 'garbage' (Laserjet 4+ over network) https://launchpad.net/bugs/87597 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs