LaserJet 4 Plus Squeaking

[Frogs31]

I have a LaserJet 4 Plus, It is Squeaking/Squealling when it initializes after powerup. It is also making these noises when the paper is exiting the printer, making me think this was the exit assembly. I have replaced the exit assembly and no luck, any suggestions?

Frogs31

[optimus378]

1st Have you tried to replace the toner Cartridge?

Forgive me if that is insulting, but i'll get knee deep in printer parts sometimes when the only thing wrong is a squeeky cartridge

2nd. If you already replaced the exit assembly the next thing to check would be the Fusing/fixing assemby. It is located behind the back door at the bottom and is easily removed by taking out 2 screws. Sometimes as they age they begin to squeek.

Word of advise.. do not spray a squeeking fuser with any petroleum based flammable spray such as WD-40. Any teflon based spray could do the trick.

[Frogs31]

Thanks for your help, it was the fuser. I didn't think to check that for a squeaky printer. Thanks again.