Workcentre 7435 Printing Unwanted Marks

[fiery]

Replace the transfer belt.

[Joe Arseneau]

Print the attached pdf.

If it happens on all colors, it is the fuser that is damaged.

If it prints on one color only it is that specific drum for that color.

If it happens on blanks, it will be damage to the K drum (black)

[PS&P Marketing]

I'm getting these little semisphere looking smeres on my print from my Xerox Workcentre 7435.  It happens every few pages, mostly at the bottom but faintly at the top.  Does anyone know how to solve this problem?

Thank you.