I've never actually see it happen, but the occurrences are increasing (42 for last week).

At the last visit I noticed the MFP sinking into the thick carpeting/padding and was hard to latch the finisher. I boosted up the MFP 5mm between the PF710 and the engine. Now it mates as smoothly as possible (considering the carpeting).

I've read up on the other J81 posts, mostly referring to the Falcon II machines. Do you think any of those fixes apply? One-way bearings in the AK-710, one-way bearings in the finisher entrance? Poor quality power?

So far, all I'm doing is burning up paper. PES tests OK in simulation, and the lower guide moves decisively every time. I sure wish I could see it jam just once! =^..^=

I had the same situation, we put a piece of plexie glass under the copier and finisher to make a hard surface, and we had not had any problems since. It is also easer to slide the finisher away from the copier now.

How thick a piece are you using, because the machine is pretty heavy? And at what cost?

I've had quite a few customers use plywood. Only one used plexiglass. It was a full 1" thick and I have to think it cost a fortune. I also think that it's overkill. I would think 1/2" would be very adequate for 400 lbs.

This is the executive offices of a major corporation so I'm thinking that the plexiglass would be the preferred solution. Sorry, no idea about cost. =^..^=

Plywood was out of the question here also, the plexiglass was 1/4 inch. when laying it on the floor it is strong enough.

It was a false alarm. More accurately it was a classic overreaction as a result of more serious jamming last week. There were only (4) J81 jams. "OMG! It's still not fixed!" [panic, panic, panic]

I would prefer zero jams, but (4) is a vast improvement.

You know I did notice one thing. On the more recent Voyagers there is a mylar shim on the top of the white lever that operates the delivery gates, that is operated by the solenoid in the JS-710 (know what I mean?). This one does not have that shim. I'm not sure what it was intended to fix, but I noticed that difference.

Another thing that I noticed was the usual warpage of the plastic delivery guides just past the fuser (part of the fuser assy). It's definitely not the worst warping that I've seen.

Another thing: the two stage gear that drives the fuser delivery roller with the one-way gear was significantly worn in the bore, wobbling some.

If/when the callback comes I think I'll start with the fuser drive & fuser.

Thanks for your comments.