09-15-2020 03:27 PM
Just wanted to leave some useful information to those who have this problem. I have a TS 9020 and it had the "type of print head is ioncorrect" message. I couldn't get rid of it no matter what I did. Eventually I removed the cartridges and put it in printhead install position (holding stop until head moves to correct place). Then I got a flashlight and examined the pins on the printer to see if something was stopping them from making contact. I found that 1 pin was bent and also there was dust on the pin connection. I was able to CAREFULLY straighten out the bent pin with a small plastic spudger from a cell phone repair kit. I brushed off the dust with a small soft bristled clean craft brush. After putting back the cartridges and closing the cover, the message went away and the printer has begun printing normally again!