No duplexing letter size sheets

[digitalprintplus]

So we've heard a lod kind of cranking like gears missing sound in the unit. Happened before and after we would run 12x18 like 120kb stock is stopped. But last Saturday realise we were unable to run the prints again the noise occur when printer insialiseand I think only when duplexing.
We then realise letter size paper no, we thought it was by paper weights but soon realising that any size larger than the letter size were duplexing still with sound

Now we bought new duplexer gears and the belt but wondering if there is something else we missed?

[gabiene]

Hi,

It is ok. But until you got the new parts, try to clean and lubricate all the bushings on the duplex module and to adjust the belt tensioner.

[digitalprintplus]

OK cool thanks we read somewhere not to lubricate the parts. However when we bought the new pars the folks sent a lubricating pen
But yeah we will try cleaning the gears again
Thanks

[gabiene]

Pay attention please! Lubricate just the bushings ( those made of bronze ), not the gears with bearings ( with one way cluthch ).

[digitalprintplus]

Thanks man much appreciated will let you know how it goes. 

[Miriam114]

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@gabiene wrote:

Pay attention please! Lubricate just the bushings ( those made of bronze ), not the gears with bearings ( with one way cluthch ).

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Thanks for the great feedback.

[digitalprintplus]

No Duplexing now at all

We have changed the belt

It used to work with larger sheets but now you get the constant jam 

erro (077-130)

[gabiene]

Execute 077-050 in DC330 (I/O check) in diagnostic to see if the duplex motor is running.

[digitalprintplus]

How do I execute this

[gabiene]

If you know how to enter diagnostic go to Tools, go to Maintenance/Diagnostic and searh for DC330 or "I/O check"