Hello programer01135,
I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance as this could be a hardware issue. Please call 1-800-821-2797 or 1-800-835-6100
My 6022 has started eating cartridges almost as soon as I get them. I noticed it a while back, and thought maybe the aftermarket supplier was under-filling the cartridges, so I spent the extra money and bought brand new Xerox-branded cartridges from CDW. I literally just printed less than 100 pages of full color invitations and watched my yellow drop from 75% to 25% and my Cyan and Magenta cartridges drop to around 45-50%. All three of these cartridges were purchased within the last 3 months, and I don't print that many pages (and when I do, they're mostly black).
According to specs, these cartridges should last around 1,000 impressions (I realize you get a little less than that if you're printing full color CMYK), but I've printed nowhere near that.
I've made sure I'm running the latest firmware, and that hasn't fixed anything. Is there some sort of software / firmware bug going on here? I can't afford to spend $300 a month for toner every time I want to print a few color pages...