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01-03-2009 10:37 AM
I have a new hp photosmart C7280 all-in-one printer. I put all new ink in the printer and printed over a hundred black and white only pages. At that point, the printer started prompting me to replace the yellow and light blue cartridges. Could someone explain why this happened when there is a separate black ink cartidge in the unit?
01-23-2009 06:44 PM
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