Lexmark 5021-0XX manual Fusing unit

5021-0XX

Fusing unit

The fusing unit utilizes a thermal fusing system that contains a heated fusing roller and a belt-like backup roller. The heated roller contains an inner heating element. The backup roller contains three pressure members located behind the belt. Paper carrying a toner image passes between the rollers where heat and pressure are applied to the paper to fuse the toner to the paper.

The fusing unit consists of the following components:

No.	Part	Function
1	Fusing roller	Used for fusing, containing a heater.
2	Back-up roller	Pressure roller.
3	Fusing heater	Heating device heated by a halogen lamp.

1-44Service Manual