Latex R1000 help !! Please?

[CosaPowder]

 I have started the process of replacing printheads. It was going smoothly until I got to replacing the Overcoat. It does not want to read the new printhead and I get a message to brush the contacts gently and vertically. What is strange is that when I put the old Overcoat printhead back in, the printer then takes the replacement, but ONLY for the OLD printhead, not the new one. It's like they warped together.

I had this issue once with one or both of the white printhead slots, and HP came out to replace the PH interconnects.  I'm not sure why the old printhead works, but a new one will not.  Do I need or can I buy a new interconnect for the overcoat? I've reached out to our service guy a couple of weeks ago and I haven't heard anything. Thank you!

[Hevi-Also]

1. You need to reseat cable connector from Overcoat Interconnect to Carriage Board.

2. For sure you could clean the cable connector and entire Interconnect with "electronic contact cleaner".

3. You may to clean the capping printhead. For sure there is no ink leakage or ink crust.

4. Also check whether water is spraying to the printhead cleaning cloth or not, while printhead cleaning process.

3. If it doesn't fix the issue, then you have to replace Overcoat  Interconnect

Remember:

Overcoat printhead just next to Optimizer printhead.

Since that, any optimizer ink splash could make issue to other printhead.

For maintenance (eg. 3 times a week): bottom side of optimizer printhead need to be cleaned with lintfree cloth, and also optimizer printhead capping as well.

[CosaPowder]

Thank you so much for your recommendation. We will try this immediately.