The code on the side of an HP cartridge does not show the manufacture date very clearly. The date appears as an abbreviated code which lists only a portion of the year. The month appears as a single ...

You may print hundreds or even thousands of pages on your HP LaserJet printer between cartridge changes, so it's prudent to clean the unit whenever you change the toner cartridge to keep used toner ...

Tuned for speed and attractive output, this small-office printer sings–but it hits a sour note with high-priced toner and absurdly expensive memory. The $500 (as of ...