Epson Stylus CX5400 belt grinder...

Sounds like a power tool, right?? Wrong! For some reason, my
sister's-boyfriend's-grandmother's printer belt is grinding and making noise. I
looked inside and the belt goes toward you when the printhead is going one way
and falls back when it goes the other way. I would expect it to stay in the
same plane as the head goes back and forth. But inside there is shavings of the
belt inside and it makes a noise as it prints....

Anybody else having these problems with an Epson Multi-Function Machine?