758 with Jam 32-01

[rrrohan]

KM 758
J32-01 Output section JAM(Fixing paper exit sensor cannot turn off after the sensor turned on. )

Jams at fuser/Duplex Unit 2 sheets of paper collide.

Have replaced

1. Fuser (for other issue so wasnt surprised it did not help)
2. Exit Assembly
3. Auto Duplex Unit (this is what has fixed this for me on clients other copier but not this copier)

Next on the list is the Paper feed/transport drive board (PFTDB)

Has anyone got any suggestions? Next is probaly the MFPB

[risografist]

If you send a one-sided sheet, is it also jammed?

Make a photo of the place of the jam with a jammed sheet.

[rrrohan]

If you send a one-sided sheet, is it also jammed?

Make a photo of the place of the jam with a jammed sheet.

single sided works fine.

i dont have a photo. its a bit hard to get a clear photo as as soon as i start to open the side door it pulls the sheets of paper apart but you can see if you only open it ever so slightly and look in, but it will be a difficult to see on a camera i imagine. ill be returning with the board so can take a photo then. but one sheet has printed, its exiting fuser, on its way back it smacks into a sheet of paper that seems to have not travelled into duplex unit.

but the duplex and reversal unit are brand new so it cant be dirty transport rollers and i would like to think all clutches and motors are working since its new assy.
also it wont always jam. i was printing the management list and it almost finished printing before it jammed. but other times it jams on a 4 page (double sided document)

[Bliki BZ]

Can you check your model Dont see 758 listed.

[rrrohan]

Can you check your model Dont see 758 listed.

bizhub 758 - Konica Minolta

[kingarthur]

There's a bulletin TAGB1900173EN, which states
Cause





Toothed drive belts for M31 and M32 inside the ADU are jumping, this can be detected by manually driving the drive gear.





This is normally after a 1M prints.

which recommends replacing the ADU

[rrrohan]

There's a bulletin TAGB1900173EN, which states
Cause





Toothed drive belts for M31 and M32 inside the ADU are jumping, this can be detected by manually driving the drive gear.





This is normally after a 1M prints.

which recommends replacing the ADU

Yeah copier on 1.6million but ive already replaced the ADU.

The other copier in same room had same fault few months back and ADU solved it. But not on this one.

Sent from my SM-G955F using Tapatalk

[Albonline]

Yeah copier on 1.6million but ive already replaced the ADU.

The other copier in same room had same fault few months back and ADU solved it. But not on this one.

Sent from my SM-G955F using Tapatalk

The od of the conveyance rollers along the entire paper path are probably reduced due to wear.

[rrrohan]

The od of the conveyance rollers along the entire paper path are probably reduced due to wear.

what do you mean od? outer diameter? well the duplex unit is replaced so they are brand new. the ext assy is brand new.

also i cant find that bulletin. not sure if we are in different regions effects it?

no bulletin.jpg

[Albonline]

what do you mean od? outer diameter? well the duplex unit is replaced so they are brand new. the ext assy is brand new.

also i cant find that bulletin. not sure if we are in different regions effects it?

no bulletin.jpg

Yes outer diameter, as they wear paper slows down not that much of an issue single sided but timing is tight doing duplex. try a single wrap of electrical tape on the driven transport rollers from the drawer up the right side of the copier. if your problem goes away replace them.