I have a 7900 with some printhead issues, and a 9900 with some other issues, but a decent head. I’m hoping to swap the printhead from the 9900 into the 7900, and replace the ink selector at the same time.
I have a few questions:
Can a head be switched between printers? Is there any resetting of the head that may need to be done before transferring it?
The service manual states the lines need to be emptied before exchanging the selector. I remember @walkerblackwell mentioning something in a different post (though not sure if it was for these model printers) that they didn’t have to be emptied, just kept above the height of the cartridge end in order to stop ink leaking out. Then once the new selector was connected, run some power cleans (or maybe an init fill is required on these models?) to get ink (piezoflush in my case) to the head.
So those are my two main concerns: can I transfer a head between machines, and how can I replace an ink selector without spilling ink (and then how to get ink back to the head)?
Thank you so much for your help!