Has anyone used this successfully on Linux? LinuxPrinting.org recommends against Canon (www.linuxprinting.org/suggested.html); on the other hand there is a reference to a Linux driver "in Japanese" (probably closed source) in a posting on LinuxPrinting.org (www.linuxprinting.org/pipermail/canon-list/2004q4/001703.html). Does anyone have anything to add to these? Thanks - jon