Callout  | Item  | Callout  | Item  | 
|---|---|---|---|
[A]  | Stay  | [D]  | Fusing Sleeve Belt (Diameter: 25)  | 
[B]  | Fusing Lamp  | [E]  | Nip Pad  | 
[C]  | Reflector  | [F]  | Pressure Roller (Diameter: 25  | 
The fusing unit uses the QSU system. (QSU: Quick Start Up).
The heat from the fusing lamp [B] is reflected by the reflector [C] and heats the fusing sleeve belt [D].
The temperature at both ends of the fusing lamp is lower than the middle.
The fusing sleeve belt itself has no drive mechanism; the pressure roller drives it. The nip pad [E] at the sleeve belt side is pushed against the pressure roller and keeps the nip width on the sleeve belt.