Toshiba e-STUDIO2330C Service Manual page 80

[G] 2nd transfer
An electric field is formed between the 2nd transfer roller and the 2nd transfer facing roller, which
generates a paper polarization and thus the toner is transferred from the belt to the paper.
When the negative bias is applied to the 2nd transfer facing roller, the 2nd transfer roller is charged
(positive), and thus the toner is transferred from the belt to paper.
[H] Fusing process
Fusing is a process of melting the toner on the paper and fixing it firmly onto the paper.
Method:
The softening point of the toner (main component: resin) is 105-120°C.
↓
(Heat) Toner is melted by the fuser belt.
+
(Pressure) The fuser belt is pressed against the pressure roller by the springs to increase
adherence of the melted toner to the paper.
↓
The paper is subjected to the heat and pressure when passing through the fuser belt and the pressure
roller.
↓
(Fusing) The toner on the paper is fused to it.
e-STUDIO2330C/2820C/2830C/3520C/3530C/4520C
COPY PROCESS
Transfer belt
Fig. 4-18
Fuser belt
Fuser roller
Fig. 4-19
4 - 10
2nd transfer
roller
2nd transfer
facing roller
Pressure roller
Pressure
Separation
roller
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