i used this HP Officejet Pro 8500 A909g all in one printer in last nine month and now it doesn't able to detect the Ink Cartridge. I have renewed all 4 cartridges but I am still getting the same error. it always say that the Ink Cartridge is being damaged on my windows 7 system. i need perfect solutions that works to fix this complex issue. Customer Service center didn't respond very well to fix this complicated troubles. any help will be appreciable.
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