HP Business Inkjet 2600 Making Wurring sound

[lancer]

It doesn't get used much but if we leave it on for five mins or so it starts to wurr/buzz louder and louder like its warming up to do a job, but inside of stopping when it gets warm like most printers the buzzing just gets louder like a jet engine, now keep in mind all this time we are not even using it at all.

Any suggestions, it just recently started, NOTHING has changed it just started doing it by itself.

 

[Hipster Doofus]

Sounds like it is getting ready to spit the dummy. Better get it seen too before it causes a fire. If it is under warranty take it back.