Hi again,Eagle402. I haven't uninstalled the printer drivers on the old machine because (it's a tough life out here!) I've been running in and out in 33ºC trying to clean a pile of eucalyptus pollen/fallen flowers out of my pool and sweating like a rapist throughout the process. I'm sort of convinced that it's a local, perhaps printhead, problem in both cases - it certainly must be something like that in the Lexmark because of its continued failure under local control. The Lexmark has only ever had own-brand ink so it would seem unlikely that blockage could occur simultaneously in all three jets so I think it's likely to be electrical. I'm increasingly fancying the idea of opening it up on the basis that, if I can't fix it or if I break it then I can remove the scanner bulb because my father-in-law wants one for another highly favoured printer in UK! Once it's a pile of bits then I won't mind quite so much to throw it out!