why is my hp officejet 4620 printer not printing black

Why is my HP Officejet printer not printing black?

A printer might not print black ink if it has not been calibrated. Thus, calibrating an Hewlett-Packard printer by aligning its printhead might fix its printing. Most HP printers will include an Align Printhead option on their Printer Maintenance or Tools control panel menus that users can calibrate with.

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