Toshiba 3511, 4511 manual Functions

16

16.3 Functions

(1)IH coil (IH: Induction Heating)

The IH coil is inside the fuser roller and applies the induction heating to the fuser roller. This IH coil is divided into two parts; the main IH coil heating the center of the fuser roller and the sub IH coil heating both ends of the fuser roller. Each part turns ON/OFF individually controlling the balance of electric supply so that the fuser roller can be kept at a certain temperature without wasting electric power on any paper size.

(2)Fuser roller

The fuser roller is a metal roller which generates heat spontaneously with eddy current produced by the electromagnetic induction of IH coil. The fuser belt is heated by this self-heating of this roller, and then the toner is fused on the paper.

(3)Pressure roller

The pressure roller is a sponge roller which assures the nip amount between the fuser roller and fuser belt. The pressure arm and spring press the fuser roller and fuser belt.

The toner is fused effectively by the pressure of this roller.

(4)Fuser belt

The fuser belt is hanged up between the fuser roller and separation roller and fuses the toner image on the paper transported by being heated.

The thin fuser belt enables to reduce warming up time and mode changing time. To prevent the fuser belt from adhering toner, the surface of the fuser belt is fluorinated.

(5)Separation roller

The separation roller is an extra small ceramic roller coated with the fluororesin tube. When the fuser belt is tensed and driven by the separation roller, the fuser roller drives the fuser belt and the paper between the fuser belt and pressure roller is separated from the fuser belt (belt separation method).

(6)Separation fingers

Five separation fingers are installed above the pressure roller to separate the paper stuck on the pressure roller.

(7)Separation plate

The separation plate is installed above the separation roller to cover the insufficient separation often occurs at color printing - the mode that the toner is much adhered.

e-STUDIO3511/4511 FUSER UNIT/PAPER EXIT SECTION 16 - 2 November 2003 © TOSHIBA TEC