I purchased a set of toner cartridges for my color printer as my printer was getting low, I had these sitting in inventory for over a year when my printer finally ran out of toner. I installed the new ones from True Image and immediately heard a grinding noise, I determined that the Black cartridge was the source of the noise (I put the old one in and the noise stopped ) all of the color cartridges were fine. I went to the website and started a chat session with them and we worked together to confirm the issue as soon as it was verified that the black cartridge was the issue they set up a replacement be sent to me. It was shipped the same day and arrived in 3 business days, There was no problem at all with the customer service, they were awesome to work with. I will always buy from them for all of my printer toner needs.