If you are having trouble getting your cartridge to read properly or are having connectivity issues with your printer, sometimes a hard reset will resolve the problem. To do this, power down the printer and then unplug the power cord from the wall. Wait for a minute, then plug the printer back in and power it back up. Wait for the cartridges to center, and then try printing again. If your issue persists, you can also try resetting the printer to the default or factory settings. Most printers include an option to restore the printer to it's default settings in the “Tools” menu of the display. Consult your printer’s user guide for specific instructions for your machine.