I just changed my black toner in my hp 4620 and it wont print black, test page prints color but not black. have uninstalled and the reinstalled still not printing
Office Equipment & Supplies - HP
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Answers & Comments
Make sure you have removed all needed stickers from the carridge. sometimes a piece may still be left over the vent hole on the cartridge. Make sure all stickers are removed as shown in picture below:
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