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e-STUDIO3511/4511 COPY PROCESS 3 - 8 November 2003 © TOSHIBA TEC
3
(8) 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
0
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.
800V
± 800V
0
Elimina-
tion of
transfer
charge
Surface potential of photoconductive drum
Transfer Discharge Charging
(9) Blade cleaning
While eliminating the (+) charge on the
photoconductive drum applied during the transfer
stage, the conductive blade recovers the toner
left on the drum at the same time.
• Elimination of transfer charge
With this OPC photoconductive drum, (+)
charge on their surface cannot be eliminated
optically. Therefore, (–) voltage is applied to the
conductive blade, which is pressed against the
drum, to eliminate the (+) charge applied at the
transfer process.
Fig. 3-315
Fig. 3-316
→→
Separation
roller
Press roller
Fuser roller
Fuser belt