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06-08-2011 08:36 AM - last edited on 02-21-2017 01:57 PM by OscarFuentes
Hi - Not sure how much help this will be, but take a look a this doc. It at least shows a small visual of removing the cartridge. Ultimately, as you're probably aware, it should just take, pulling back on the cartridge and pushing down slightly. As a last result, you might just take the printer in to wherever you purchase your cartridges and see if they can help remove the cartridge.
Hope that helps.
I am an HP employee.