Ricoh MP4500 Jamming in duplex unit every copy

[NeoMatrix]

Old machine. I'm trying to mentally picture the machines duplexer....

Does it only jamb in the duplexer when using the top tray only ?
Do all other trays work fine ie. no duplexer jamb?

[Win]

Wrong guide plate or not in correctly.

Hi there
Thanks but that is not the case ....I tried the whole unit in another machine and it actually worked so it seems the problem is on the machine .... if you to try to copy without the guide apparently it is possible but obviously it will jam at some point so maybe that point has little or no significance I suppose.

I will go back to the original machine and I actually expect it to work otherwise it must be something on tge machibe itself

[Mark Bbb]

Ricoh MP C4000 duplex jam
good luck

[Win]

Old machine. I'm trying to mentally picture the machines duplexer....

Does it only jamb in the duplexer when using the top tray only ?
Do all other trays work fine ie. no duplexer jamb?

Hi I did not try a4r tray but now I found the unit worked on another machine in a4 orientation ) ....if it jams on a4r but not a4 im not sure what this will tell me so I dont mind you telling me if you can figure that out but remember it didnt work on the first machine in a4 but worked on the second machine so I am going back to the first machine tomorrow to try it again as it points at the machine itself now. Thanks for your time!

[keithxxiii]

Hi I did not try a4r tray but now I found the unit worked on another machine in a4 orientation ) ....if it jams on a4r but not a4 im not sure what this will tell me so I dont mind you telling me if you can figure that out but remember it didnt work on the first machine in a4 but worked on the second machine so I am going back to the first machine tomorrow to try it again as it points at the machine itself now. Thanks for your time!

...only to realize, the paper size sensors are not activated properly

[Mark Bbb]

Ricoh MP C4000 duplex jam
good luck

I repeat.