12-20-2011 02:21 PM
Three full (CMY) cartridges seem to have passed their expiry date. Always been careful to spend the money on HP ink, but amazed to discover they expire. I only want to print in black (the one cartridge that is OK), but it won't let me. Is there a way to do this with an HP OfficeJet K850 without having to spend another £90? I'm using on a Mac by the way.
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