HP Color LaserJet 5550 Printer series - Manual (Page 161)

4. Grasp the green handles on the ETB and pull down.
5. Rub the cleaning brush back and forth three times over the static discharge comb at the
top of the printer to remove excess toner. Shake the brush over a waste receptacle to
dispose of the excess toner.
ENWW To clean the static discharge comb 147