bizhub PRESS 1052 saddle stitcher grippers

**blackcat4866** · 01-31-2016

I've heard a rumor that there is a new style gripper for the SD-510 saddle stitcher. Or perhaps it's it's a retrofit from another model saddle stitcher. Does anybody have details, like maybe a part number?

On thicker booklets it's fine, but on thinner booklets of 2 or 3 pages the paper slips out of the grippers and the staples end up off center, and the fold equally off center. I've already added an additional 1/2 wrap to the spring on each of the grippers. The rumor I heard was there were grippers with rubber tips, for better grippage. =^..^=

**iceman490** · 02-01-2016

Never heard of a new gripper for this model. I just fought one throwing jams and grinding. I have seen there are foam blocks on the folding blade that get caught in the fold and cause mis folding.

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**blackcat4866** · 02-01-2016

Those have been replaced on this finisher. My customer managed to bend the folding knife during a jam removal. I am perplexed exactly how it would happen. During the part change, I noticed the foam pads with mylars on the new part that were completely absent from the old knife. All but a little residual adhesive and a few scraps of mylar, that is. =^..^=

**blackcat4866** · 02-04-2016

bump. Grippers anybody?

**beetle73** · 02-04-2016

The fix for this issue is to increase the thickness of the gripper itself.
I took a small piece of rubber and glued one to both grippers. ( separator pad from document feeder works well)
Problem solved. I believe there will be a tech tip.
Good Luck!