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HP psc 750/device communication error 5012/HPLIP 3.10.2

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http://www.linuxquestions.org – I have a HP PSC 750, it was fully working on Karmic, after a new fresh installation of Lucid Lynx, it has stopped working at all, I'm not able to scan nor print. "hp-toolbox" says "device communication error (5012)" The printer is plugged directly to the usb port, and I have already tried plug it on different ports, using different cables unplug/re-plug, reboot, even printer full reset (the "hardware reset" holding the buttons and plugging the power cord). And re-installing (via synaptic) all hplip, cups and dependencies. lsusb is allways showin (HowTos)