Two printer cartridges that I purchased at Cartridge World went bad immediately upon putting them into my HP Lazar printer. The black one left a line on the page and the blue one was leaving blue splotches on everything. I took the cartridges back with the original receipt. The business owner VAN told me that I had not purchased them at his store. I told him that I only purchase cartridges at Office Depot and Cartridge World. Office Depot does not see 'refurbished' cartridges. I even had the original box with the tag and numbers. He said that he never sells that brand so I didn't buy them at his store. So at worst, he called me a liar, at best, he was saying I don't know what I'm talking about. I had been told when I purchased them that if there was any trouble to bring them back. Well I did and I did. But obviously they can not be trusted at their word. Nor do they sell good cartridges. I had purchased other cartridges there that went bad or didn't even PRINT and didn't bother to take them back. These cartridges were for a lazer printer so they were $72.00 a piece. I was cheated!!