I installed a new black ink cartridge in my HP Officejet Pro 8620 printer and now it will not print. The dial says there is a problem with the printe

  • Thread starter Thread starter Christopher Moree
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Christopher Moree

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I installed a new HP 950XL black ink cartridge in my HP Officejet Pro 8620 printer and now it will not print. The printer screen says there is a problem with the printer or the ink system. I have turned the printer and computer off. I have also unplugged both from their power sources. No change.

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