MX-M904 Finisher Jams in the Saddle Fold entrance area.

[acribari]

Hello,

I have posted here before when asking about this machine model and have since installed it at the customers location. The main body is New out of the box but the finisher FN-22 is used. It works fine in all modes except saddle fold / stitch. The customer programs the job for 8.5 X 11.0 paper saddle fold and stitch. 6 sheets of paper. It prints about 2 to 4 successfully and then jams at the top of the saddle entrance area. about 3 or so sheets of paper are stuck in there when I clear the jam. So I cleaned all the rollers and tried again. I get about 6 to 8 sets no problem and then it jams again.

Could this be the foam rollers at the bottom? maybe a clutch or motor issue?

Any clues on this would be great! I am new to Sharp models and need some help from an experienced tech.

I do have another used finisher FN-22 to take parts from or swap out the entire saddle assembly. I don't really want to do that unless I can't figure out why its jamming.

Thank you in advance.

[dsmith46]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

What is the jam code? Sharp issued a bulletin about the saddle roller sensor causing false jams, and ultimately change the sensor and mounting plate that it mounts to. It is bulletin: MFP-TB-1149

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

I forgot what the code was. I will have to look when I go back. Stupid me... lol..

the paper does actually jam. I will read the bulletin you posted but if it is actually jamming and I have to remove 3 sheets of paper it may not be a false jam. also, some times the paper does not jog properly and the stitch misses a sheet or two. so then it comes out with maybe two sheets skewed and the rest are jogged. I think its slipping somewhere. I will get the code.

Thanks

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

Sorry, this may sound stupid. I cant find the jam code for the saddle stitch folder jams. Where does it list the jams?

They don't use the machine everyday for saddle. so I just now got a chance to go see them again.

I am a noob on these Sharp machines and I know it sounds funny but I cant find the jam list. It does not display a jam code when it jams. Also it is not a ghost jam. It actually has 3 sheets of paper jammed in the top of the saddle stitch transport.

Any help would be appreciated. Thank you and sorry for my lack of knowledge on this machine.

[mansart]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

Print out a SIM 22-6

P*C* 22 start
6 start
execute.....yes

Scan and post the first page that prints out.

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

I had the customer scan in the logs.

They gave me all 6 pages. See the attached.

Thanks again.

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

Maybe FNS102_S and FSS203_N and FSS102_S

[mansart]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

First thing I would do is firmware.

According to bulletin below, there was a firmware upgrade to the FN22 to allow it to work with the M904.

Because you started with a new machine and a used finisher, I would double check see that the firmware is most recent for both machine and finisher

CCE1146-MFP-TB-751.pdf

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

ok, I have the new firmware so I will go back and try that first.

I will repost after. Thanks

[sharptech]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

You stated the FN22 was used. How many sheets of paper have gone throigh the finisher?

T.G.G.

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

The finisher is used. I don't know exactly what you are asking but since its used there have been thousands of sheets through finisher. If you are just asking how many sheets make it when doing the saddle jobs then I can say that it completes about 4 to 6 books of 6 or 8 sheets fine and then it jams.

it only jams on saddle fold and stitch.

[OlliK1969]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

Hi

please control this part
0cwfc93369001 old number
0cwfc93369004 new number

Have had it broken at MX-M904 with MX-FN22

Parts manual MX-FN22 Section 21 ( Upper Feed Guide Assembly ) No.7

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

I upgraded to the latest firmware. I still get the same finisher jams in the saddle entrance. 2 to 3 sheets usually are jammed at the top transport entrance area. I ran about 40 books and it jammed about 7 to 10 times. One or two of the books even came out of the finisher with the pages out of order.

Any other clues?

I did look at the paper feed rollers and assemblies and did not find any broken parts as per the last suggestion section 21, item 7.

If you know of any other things to try please let me know.

Thanks

[mansart]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

I would start by swapping out the inlet sensor FSS201
fn22.JPG

If multiple pages are bunching up at Saddle inlet port roller, that would indicate .....

1. Roller is sometimes not being driven....is there a one way bearing in drive train of this roller?

2. paper is entering at an incorrect angle to hit the nip between inlet roller and mating guide roller....
gate adj.JPG

[acribari]

Re: MX-M904 Finisher Jams in the Saddle Fold entrance area.

I replaced the sensor. I adjusted the solenoid for the entrance gate. Still jams. I found that the entrance plate on the saddle assembly was crooked a little bit. I loosened it up and re-mounted it properly. Also found the entrance are had a bent piece of guide plastic. I fixed that as well. Cleaned all the drive rollers from the top entrance all the way in to the folder.

Still jams.

I don't know what else to do except start replacing all the rollers etc...

So, I found another used finisher without the 3 hole punch and cutter. I may just take that one over and connect it just to get it running. The customer only needs saddle stitch and saddle fold.

If you have any ideas let me know. It may be something crazy like a bent frame or a warped shaft.

I will keep you all posted.

Thanks for all the help so far.