My MF644Cdw has started making a horrible squealing noise when printing. I've run through all the maintenance/cleaning procedures with no luck. Really seems like something needs to be lubricated. Any ideas?
Think I might have solved the issue by printing a couple dozen pages with a lot of color. Wondering if not using any color for a while - mainly printing b&w docs - resulted in some "stickiness" on the color toner carts?
Ah, I just reseated all the toner carts and the sound seems to have gone away for now. I'll report back if it returns, but it'll be great (and a little embarrassing) if it's just that simple.Edit: Nope, squeal is back a couple prints later.To answer ...
