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HP CEO: You're 'bad investment' if you don't buy HP supplies
(www.theregister.com)
This is a most excellent place for technology news and articles.
Funny you'd mention that. I removed my color cartridge and haven't seen fit to reattach it. On HP printers, at least, you can override ink checking by long-pressing one of the buttons on it. (I assume people who have purchased a printer that doesn't suck will have a similar option)