Epson 7900. ink leak from the green channel

I have a problem with ink leakage from the green channel. once the printer is turned on there is a leak from the green channel which drips onto the ground.
I had to replace the right inkholder because it was leaking ink from the green channel. I dismantled the old one and found a leak behind the inkholder and also the delaminated green dumper, as if there was too much pressure.
I replaced the damper and the back plate of the inkholder with a used one, but the problem returns.
only problems on the green canal.