Bizhub C3110 Check paper Size Duplex 2

[copier tech]

Battling another one of these old C3110 models! This one has this strange message. I checked everywhere there is no paper jammed, machine never comes to ready. Powering off/on the machine & the message won't clear.

What does 'Duplex 2' mean & why the check paper size message!?

49908

[tsbservice]

I had one when they have paper jammed and it was stuck where you open side door paper was coming for second side print and at some point was completely hidden I mean half a page not small piece. Check with another sheet if paper path is clear.

P.S.
You seem to have bad luck with these lately. KM color A4 machines are questionable at best wish you visit some more solid color A3 models ;)

[copier tech]

I had one when they have paper jammed and it was stuck where you open side door paper was coming for second side print and at some point was completely hidden I mean half a page not small piece. Check with another sheet if paper path is clear.

P.S.
You seem to have bad luck with these lately. KM color A4 machines are questionable at best wish you visit some more solid color A3 models ;)

I looked in the duplex unit even took it off to double check!

We sold a few of these C3110 to care homes about 5 years ago starting to regret it now!

[srvctec]

Sounds like it might be a broken or really worn sensor actuator or maybe a bad sensor.

[copier tech]

Sounds like it might be a broken or really worn sensor actuator or maybe a bad sensor.

If it was attempting to feed then jamming I would agree maybe a worn/broken actuator but my issue is this message never clears.

So yes possibly a failed sensor but trying to work out with sensor gives duplex 2 jam message.

[srvctec]

If it was attempting to feed then jamming I would agree maybe a worn/broken actuator but my issue is this message never clears.

So yes possibly a failed sensor but trying to work out with sensor gives duplex 2 jam message.

According to the manual...https://uploads.tapatalk-cdn.com/20210810/bfc7ddd37e7c316a7cad44165c628971.jpg

[blackcat4866]

Duplex conveyance sensor PS9 and exit sensor PS8 are the two sensors involved in the DUPLEX2 jam indication. If it's simpler to get to the PRCB you can check the signal output at CN14 pin3 to ground.

These aren't great illustrations, but maybe they'll help:

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