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I use hpoj (invaluable for the scan function) but as far as I can see it doesn't include anything for testing the level of the ink supplies, which is what I'd like, as I suspect I may be changing cartridges when they are merely gummed up; changing them unnecessarily is d.* expensive. When I do change I have been weighing the old and new cartridges, but am not sure what the difference ought to be. -- John Palmer Preston near Weymouth, Dorset, England e-mail: johnp@xxxxxxxxxx (plain text preferred) website: http://www.palmyra.uklinux.net/ -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html