Bridge Roller Problems

We have 2 Komori Presses. One is a 2001 LS straight 6 color 40 inch. The other is a 2005 6 color 2/4 Perfector 40 inch. On each press we have 1 unit that gives a toning stripe about 4 inches from the gripper on the gear side of the press. It's the 4th unit on the straight 6 and the 5th on the Perfector. We can get this strip to go away by turning off the brigde roller. We run non-integrated but have tried running integrated. We have replaced all rollers in the respective units. Any help would be appreciated.

 

what kind of ink, al.sub and etch are you running ? and what is the conductivity at ?

 

Check again your roller settings. Is there a particular reason you want to run integrated? If removing the bridging roller solves the problem and you don´t need it leave it out.

 

Well if it's happening on two particular units then alcohol sub and so on really wouldn't affect that. It more than likely is a roller stripe may not be right. 4 inches from the gripper on an LS press would mean its from the dampening system. Do you also get a stripe about 4-5 inches after that initial stripe from the gripper. Or even some toning that starts at the first 4 inch stripe and then again 4-5 inches.