MX-FNX9

[graybeard]

Hey folks,
Got an MX-FNX9 that we've had mounted on two different machines. We have the same intermittent problem. The front frame lead corner curls upward just enough to hang and flip the paper and get the sets out of order. No jam registers, and the machine doesn't stop. The paper appears fine until just prior to exiting the machine. The two small mylars are fine, and the rollers are the new style. The static brushes are mounted correctly. The plastic exit with the other two mylars appears fine. I can't find any burrs or anything misshapen.
The problem only happens about once every 100-200 sheets through, and it happens to the first sheet of a set which always appears to guide out slightly higher. Has occurred with my shop paper as well as the customer's paper.
To this point the only solution I can think of is to ask my main branch for another FNX-9, swap the serial plate, and send the problem back to them. (yeah, I thought about it, but hate getting beat by a machine) I am fortunate enough to currently have this problem child in the shop with a machine to run it on.
Hoping someone has encountered this, or might see it differently and steer me in a direction I haven't thought to go.

Thanks,
Al

[mojorolla]

Re: MX-FNX9

Make sure the 4 paddle rubbers are still there.
Part # 0CW4141P320//, section 5, item #8.

[bilyahn]

Re: MX-FNX9

Have had this problem but not with the same finisher on 2 separate units. Ours was due to the mylar on the fake punch unit being too far from the exit assembly of the copier. Repositioned the mylars and it fixed the problem. Know this is not what you stated but if you brought the entire assembly with you it might be something to look at.

Good luck.

Bil

[graybeard]

Re: MX-FNX9

Left the dummy punch unit at the other machine, so have used two different ones. Will have to get in and check the rubber paddle stuff. Would think it would happen more often, but not one to leave any stone unturned or any salesman un-irritated.

[poekeypop]

Re: MX-FNX9

try fuser pawls, adj fuser entrance plate. had similar problem b4, drove me nuts....

[divad2k1]

Re: MX-FNX9

Hey Graybeard, do you remember what was the fix for this problem ?

[graybeard]

Re: MX-FNX9

I fixed mine by finding a slightly wider mylar for the dummy punch entrance (actually a lot wider and did a lot of trimming). I believe there is a bulletin with modified parts, but since I got mine working I wasn't about to go back and kick the sleeping dog.

[divad2k1]

Re: MX-FNX9

Thx for the info I will check this out.

[mdpme]

Re: MX-FNX9

On Dummy Unit only not Punch Unit you can slightly raise the upper entry guide by loosening the 2 screws holding it on and placing a piece of paper clip as a spacer to lift it up.
this will basically do the same thing as extending the mylar. It will stop the paper exiting the delivery unit rollers from going to high and hitting the edge of the mylar.

[vos.3305502137]

Re: MX-FNX9

There's a bulletin on these type issues. The FN9 can be mounted on various main bodies. Firmware is a biggie. Make sure fin firm is correct for main body. In addition there MFP-TB 924R. This has the modified mylar mentioned above as well as a modified punch dummy mounting bracket. I have had success with this. Mostly get random jamming at finisher inlet. POD1_S and POD2_S jams.