gear mark
gear mark
Dear Lakshmi
first of all you must reconfirm if its a gear mark , the best way to do that is print with a screen of 70 % and you would see the lines, than move the plate cylinder by at least 1 cm circumferentialy.
then keep both the sheets together, if you see that the streeks also move by 1 cm then its not gear streak its comming form the rollers
if the streaks do not move then its from one of the bearings.
with my exprience with heidelberg GTO ,if you are having a problem with the bearings you will notice that the registration will not be correct on all the four sides it will probably be out laterally in the tail side.
regards
shajith