Maintenance kit for HP CLJ 4550n

[donm]

Hello all,
Our HP color laserjet 4550n is squeaking badly when printing. I have swapped toner cartridges as suggested in these forums, with no improvement.
I was thinking of purchasing maintenance kit C2001-69012. http://www.printertechs.com/maintkits/lj4kit.php

Is this the right kit for a HP color laserjet 4550n ?

Thanks,
donm

[David]

No, that kit is for a Laser Jet 4 or 4M! Will not work on 4550!! David

[jtrotier]

Check the paper transport assembly at the bottom of the printer just before the fuser. The rollers that drive the paper transport belts get toner in the bushings and squeek like crazy.