I have 0xc18a0106 as an error on our HP Photosmart D7160. I've followed all of the previous steps that I've found to troubleshoot it. I've taken each of the cartridges out (although they are brand new and directly out of a new package). I've also unplugged it from the machine and then the wall, waited 15 seconds, and then I get the exact same message. I'm frustrated. Any advice would be helpful. Thank you!