Hp indigo 5000 defects in print trailing edge

Hello guys i have print problem mark in the end of the paper trailing edge (not the gripper side )
for some raison the ink do not get transferred to the paper in this spot i checked the all drums pip blanket and impression all looks fine I changed the underlayer pip and pip and blanket still have the same problem i changed the sponge roller in cleaning stations too same problem
when i print separation gray the mark is in all CMYK COLORS
any idea please ?

 

Check if increasing or decreasing second pressure transfer it changes.
For similar problem I had to change itm drum.

 

after DECRISING still the same but increasing impression adjustment by 3 numbers it show 3 i put 6 and it shrink little as showing in pictures

 

So you put more pressure between pip and itm drum?
The problem I think is there. I am pretty sure is not a bearing problem.
I will change itm drum.

 

im suspecting itm drum but its so hard to change it and we don't have service in the machine i want to make sure it is the drum before go for a change

 

Sergio it looks like weak spot on PIP drum. Try to desynchronise pip drum with one tooth, mostly it helped when weak spot wasn't too big

 

please how to do it ?

 

You need to loose ITM front bearing, take out rear ITM bearing and then you can move PIP drum by one tooth. But to screw rear ITM bearing you need a JIG