mpc3002 jam between F.U. and exit

[FrohnB]

After better inspection, there is one grey 12V wire that has a L angle and it seems that it was blocked before.
Could this cause such big problems?

Can't say we've seen anything with that wire (but you can swap it to be sure!). We usually see the green ground-wire that goes from duplex to mainframe broken causing SC204.

Have you checked the "docking brackets" for that Transfer/Sep unit on front and rear of machine right next to ITB? Sometimes those get broken and Transfer unit doesn't sit right, and can cause light images.

You also say that it always jams on a "tooth in the exit unit". Is your fuser exit guide warped? Is the entrance guide clean? Have you checked that the junction gate solenoid is getting it's full "throw"?

Have you tried swapping the exit unit?

[Mark Bbb]

Replace the fuser unit, or flip it on both sides, or secondary transfer.

Jakebear, i have replaced the F.U. with a totaly new one, as i have written in a earlier bulletin in this thread.

[Mark Bbb]

Can't say we've seen anything with that wire (but you can swap it to be sure!). We usually see the green ground-wire that goes from duplex to mainframe broken causing SC204.

Have you checked the "docking brackets" for that Transfer/Sep unit on front and rear of machine right next to ITB? Sometimes those get broken and Transfer unit doesn't sit right, and can cause light images.

You also say that it always jams on a "tooth in the exit unit". Is your fuser exit guide warped? Is the entrance guide clean? Have you checked that the junction gate solenoid is getting it's full "throw"?

Have you tried swapping the exit unit?

No, there are no broken "docking brackets". In fact I tried everything you suggest here, and everything you have suggested was also written in this tread before.

[GIUBOSS]

Sometimes I found photosensor electric wires, interrupted, I believe they are economizing in assembling these new machines

[Mark Bbb]

solo...
I have installed a mpc3001 duplex unit in this mpc5502 and now it indicates a jam in C...
These duplex units are not interchangeable?

[GIUBOSS]

you should first check the manuals if they are the same and then try to do it. I don't know but I think having two different copying speeds will have different duplex.

[Mark Bbb]

you should first check the manuals if they are the same and then try to do it. I don't know but I think having two different copying speeds will have different duplex.

As long as there are no electronic printboards on that assembely, copy speed can not be an issue.
I am going to replace all sensors and the harness, i think that will be the solution.

[fshead]

I actually have one or two of the right side full "DOOR",assembly as I find when needed a god send..
Maybe scour up a am old printer spc830 and gut it..
I think the mpc3501 and mpc3502 are very similiar but have not had need nor want to find out.
good luck

[Mark Bbb]

I actually have one or two of the right side full "DOOR",assembly as I find when needed a god send..
Maybe scour up a am old printer spc830 and gut it..
I think the mpc3501 and mpc3502 are very similiar but have not had need nor want to find out.
good luck

sensors (3002=3001=2800)
AW010107 x2 enterance & lower 6,18
AW010118 middle 7,91
AW500031 paper size sensor by pass 2,41
AW500035 paper end sensor by pass 3,31
AW020145 x2 photointerruptor man feed table & upper cover
harness 3002
D1444587 main 12,13€
D0292769 by pass (=3001) 3,80€
D1444562 fusing entr sensor 1,73€
B2232659 duplex exit sensor & by pass (=3001) 2,26€
harness 3001
D0894587 main
D0292769 by pass (=3002)
D0294562
B2232659 (=3002)

[fshead]

I am old school and grab from my scrap piles.
That is why I try to wrap and protect spare parts as
buying from ricoh is pricey..