[Misc] Noisy Ricoh 4420NF Fax

[KemoKimo]

I've just been given responsibility to correct a noisy Ricoh fax, 4420NF.
It emits a high-pitched squeal whenever a printing an inbound fax, or
a transmission confirmation page. When the unit covers are opened,
then re-closed, and the unit cycles, it also emits the same squeal.

But no squeal when a page is fed thru the ADF.
Swapping the toner cartridges has had no effect.

Any suggestions on the most likely source of the noise, or some guidance
on where to start ?

Thanks

[Eric1968]

Re: Noisy Ricoh 4420NF Fax

Could be the hot roller bushings, or the stripper pawls.