AR-M355N feeds then cycles/ eventually misfeeds

[Claudio]

I am working on a Sharp AR-M355n that the ADF misffeds. Rebuilt the feed with feed shaft, 1-way feed clutch, reg. mag. clutch, ( Feed shaft mag. clutch is on B/O but cleaned it ), feed rollers & pad.
Machine feeds 1st original then begins feeding 2nd original & stops without exiting either original, machine stays on a cycling mode. After a min. or 2 of just cycling, try to clear from the op. panel & then displays the "Misfeed". Also noticecd a similar simptom from tray 1. I end up having to power off & back on to clear.
Has anyone seen this before? Could this be a Firmware type of issue?
Any help appreciated. Have a great day.

[CopierTechofOmens]

What's the jam code?

[CopierTechofOmens]

If it's whacky jamming, check the spring on the Reg. assembly. Static buildup from breakage can cause odd problems.

[blackcat4866]

Is this the original separation pad system? The original separation pad system works badly even when new.

My recommendation is to order the separation system used on the Tiger (AR-M350N, AR-M450N, AR-EF1). Don't use the mod kit. Sharp just could not take our advice and go back to the Tiger separation pad system. They had to modify the system, and the mod was never as good as the Tiger system.

=^..^=

[Claudio]

Thank you Omens & Black Cat for your replys.
I need to return to this machine & get more info.
I am not very familliar with this Sharp. It's the 1st of it's type I've worked on so I'm am just becoming familliar with it. I do have the service & parts manuals. I do not know what the Tiger Sep. Pad System is, but the Sep. Pad on the ADF was replaced and is not multi-feeding. We did not sell this machine to this customer but we took it on for service ( originals jamming ).
Do you happen to have the part # for the Tiger Sep. Pad Ass'y handy?
I will be inquiring around about it together with the symptoms the machine is having.
Have a great evening.

[CopierTechofOmens]

Is this the original separation pad system? The original separation pad system works badly even when new.

My recommendation is to order the separation system used on the Tiger (AR-M350N, AR-M450N, AR-EF1). Don't use the mod kit. Sharp just could not take our advice and go back to the Tiger separation pad system. They had to modify the system, and the mod was never as good as the Tiger system.

=^..^=

You like the old setup? without the additional plate? Those things are a like rocking chairs. i don't trust em. I usually ended up pushing down on the bracket until it gave enough pressure to stop MultiFeeding

[blackcat4866]

Yep, you can have jamming, and no multifeeding. On the EF3 there was nothing to fix, so of course they had to change it.

Here is what you need (1 each):
PSHEZ4847FCZZ Separation Pad Only
MSPRT2864FCZZ Separation Spring
LPLTP5747FCZZ Separation Plate
MSPRP2832FCZZ Leaf Spring
PSHEP4848FCZZ Mylar
PSHEZ4878FCZZ Mylar

When you assemble these items always align the round holes with the round holes, and the slotted holes with the slotted holes. You'll layer the parts in this order:
Separation Plate
Leaf Spring
Thick Mylar
Separation Pad
Thin Mylar
3mm x 3mm machine screw

Install the Coil Spring in the top cover, then install the assembled separation assy with two screws.

Enjoy! =^..^=

[Claudio]

Thanks again for your help.
Before going back I'll get these parts put them in and see what happens.
I'll get back here once I do this ( may take a couple of days ).
Have a great remaining week.
Claudio

[CopierTechofOmens]

[blackcat4866]

Where'd you find him? =^..^=

[CopierTechofOmens]

On a wall in a burrito shop. They had a bunch of old adverts.

[blackcat4866]

Thanks!
He is now added to my collection of upcoming avatars.

=^..^=

[Claudio]

Hello guys:
I'm Following up on this machine:
I replaced the mag. clutch that was on B/O. Also noticed the separation ass'y was already modified to tiger series except for a couple of the parts ( there was an additional copper plate which I removed and a shorter mylar ). When I was done, it worked just fine. Tested 2 sided and all 3 trays. Probably ran 100 2 sided. The next morning, my customer called saying the machine did not work. We inspected it again and the same symptom had returned. Spoke to Hytec, they think the MFP PCB is bad but are not sure. Now the customer placed any further service on hold until they decide if they want us to proceed any further. *When we 1st serviced this machine, it was not printing ( Don't know the exact symptom since I was not the original tech servicing the machine, but it did not work at all ) but the MFP PCB was replaced. It worked after replacing the PCB but then we noticed the symptom we are currently trying to solve.
Thanks for all your help, but for now my problem is still unresolved.
This might be one for SuperTech.

[Comingapart]

For a while there every single board we got back from Hytec either had the exact same problem as before or we were sent another board with another problem.

They were great for the old analog machine boards, but their work on the newer stuff is horrible.

We don't do business with them at all anymore.

[Claudio]

Hello Comingapart:
Just curiuos, who do you use for PCB repairs or, or do you just stick with OEMs?