HP 2840, black ink drum q3964a
Hello, these printers tend to be finicky.
In other words, just replace the black toner. When the printer says its low, or empty, regardless of wether or not it is, just replace it.
Replacing the drum, when it says black toner needs to be replaced will do nothing to rectify the issue.
Buy only HP Toner and Drum cartridges for this printer. Do not try to refill toner cartridges, and do not reset drum. You will only end up destroying your printer in the process.
TONER BLACK LIFE END MESSAGE AND ERROR LIGHT STAYS ON WILL NOT ALOW PRITER TO WORK--THE TONER CRTRAGE IS FULL
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