2020D constant squeeking noise

[Rick]

Hey guys this one is driving me to drink . I have lubed every bushing I can find still this baby likes to squeel . Any one run into this before ?

[cobiray]

Check you're fuser sep fingers. I've had several of this engine type need the sep fingers cleaned or replaced due to noise.

[zed255]

+1 for fuser pick-off claws.

[neergish]

I've chased that mouse before too.

Also check the fuser pressure roller bushings, when these start to wear you'll get a squeak, id replace them before lubing them. I've also found a similar noise being made by the toner hopper binding up as the bottle turns.

[DiskCopy]

Check output tray rollers, above de fuser unit

[CableGuy]

Hi.

I've had similar issues on the Russian models and found it to be toner etc in the transfer roller bushings, could be worth a shout on the model

[mikadonovan]

+ 2 for the strippers.

[TEKK09]

heat roller claws... toner build-up causing sticking/singing... I've substituted a slightly stronger spring with good results.

[tcs04]

One other thing.

I've seen a machine which "screeched" constantly and it was caused by the main drive gears. Remove the rear cover and loosen the screws on the main motor PCB one at a time, see if the noise reduces. We changed the motor and greased the gears with no effect so I simply left one screw slightly loose and the machine is (almost) silent. Otherwise, if this is the problem, it's a new set of gears. It could also be that the mounting frame for the gears is warped.

You can confirm by running the main motor in 5-804.

[owen22]

I had a similar noise from the PCU switch it and see!