slurring problem

can anybody help me out to resolve the following issue.

i am having a slurring problem only visible along the gripper edge.
printed dot is slurred from gripper side to tail and its 1.5cm - 2cm is in width.
but some sheets are printed in narrow slurring like 0.5cm width.

i tried all the following efforts.....but with no luck.... :-(

re tension blanket
re tighten the jacket cylinder
re tighten the plate
checked all form rollers and adjusted to specification
reduced conventional type dampers to the plate
checked impression cylinder grippers and all are fine

so what else do i have to try.......???

any suggestions are greatly appreciated.

Thanks in Advance

 

have you checked the blanket packing? it sounds like the packing has just pulled out, usually caused from a job or two which required heavy preasure due to a low spot in blanket ???

 

thanks for your advice dear Bill Borcicky.......... i didn't check the blanket packing as it was changed recently.
will start over again with fresh packing and see the progress...

once again thanks for the advice.

-dede-