The one that starts with usb:// uses the cups usb backend. And the one that starts with hp:/usb/ uses the HPLIP hp backend. Looks like there is some issue with bi-directional communication in hp backend. Anyway it is good to know that you are able to print using cups backend.
-- photosmart 7760 freezes when starting a print job on ubuntu jaunty https://bugs.launchpad.net/bugs/414689 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
