Law360 (March 29, 2005, 12:00 AM EST) -- Hewlett-Packard has sued two companies that sell refilled ink cartridges for patent infringement and false advertising. On Friday, HP sued InkCycle in U.S.

SAN FRANCISCO (MarketWatch) -- Hewlett-Packard said Wednesday that it and InkCycle have settled their patent infringement lawsuit related to inks used in the refilling of certain H-P inkjet cartridges ...

Learn how to clean a printer cartridge safely, when to use built-in cleaning, how to handle inkjet contacts, what to avoid, ...

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HP's firmware updates aren't just blocking third-party ink anymore, some models now refuse to print at all without an active ...