OK, Ward, I think of an electrical contact as being made out of metal. It's my background in audio and rock'n'roll, I guess. There are no metal contacts on the outside of this cartridge that I have just replaced. I have examined it stem to stern with my 5.5x loupe.
If the intake nozzles which penetrate into the cartridge are made of metal, maybe they could double as conductors which touch contacts inside the cartridge. Or, is the cartridge body made of a conductive plastic? How could three separate signals be transmitted from the single molded body of a color cartridge? Is there any conductive plastic? Get out those old cartridges, folks, and start snooping. Or, just be glad that you have a nice printer and let it be a mystery. That's my approach. David Dudine | The next meeting of the Louisville Computer Society will | be January 28. The LCS Web page is <http://www.kymac.org>.
