Question about HP DeskJet 940c InkJet Printer
I had the same problem and the following worked for me: I used a cotton swab with alcohol to clean contact points (copper colored dots) on the back of the ink cartridges themselves. I also gently cleaned the brass-colored pins in the cartridge slots. Hope this solves your problem.
Posted on Jul 14, 2009
Replace the catridge with new one
Posted on Jul 01, 2009
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Posted on Jan 02, 2017
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