I would check the spring on the output port. I had one cart flood all over the table because when I drew out some ink with the bottom fill adaptor it did not spring back properly. Not sure if it's a fix but worth checking. No air should be coming in through that port - only through the small hole at the top of that chamber (under the silver strip when shipped).
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Re: [Digital BW] Is my cart defective?
2005-03-20 by Steve Kale