Hello. I printed several documents using only black ink when my cyan cartridge needed replacing. After doing this several times I got a message "printer failure. problem with the printer or ink system." I replaced the empty cartridge. Now I get the message "one or more cartridges appear to be damaged." I replaced that cartridge again. Same message. I replaced all the cartridges with new ones (I had a backup box). Same message. I have followed all the steps on the HP site, updated the firmware, unplugged, plugged, etc. What to do? Did I mess up the print head by not replacing that empty cartridge immediately? Thanks.