The 219 OS I’ve been using has developed a terrible problem, which started about 6 months ago, and nothing I do seems to help. The grippers raise fine, but when depressed into the paper to HOLD the paper,the grippers clamp down very hard, MUCH harder than is needed to just hold the paper in position – and the pressure of this then creates a mark on the paper under each gripper. The mark most resembles a series of angled parallel lines indented into the paper at the exact position of each gripper. I’ve never seen this before. The problem does NOT come and go, but seems to be steady-state.
I tried to find some adjustment for the tension of the grippers’ “chomp down hold” on the paper, but couldn’t find anything that would ease off the tension of the gripper when released to come down on the paper to hold it in place.
I removed all the packing, put on new tympan paper, cleaned the bar, unloosened the screws at the top of the gripper bar on the backside (internal press) of the bar itself (which seemed NOT a good thing to do â€” those screws want to be kept tight) BUT NOTHING worked.
Any ideas? (Tried to take picture, but the indentations don’t show up on the paper.)