Canon I-Sensys LBP5050, Service Manual

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Chapter 2
2-6
F-2-10
2.4.1.6 Fixing block
0018-6684
LBP5050N / LBP5050
The toner image is fixed onto the print media.
Step 7: Fixing
The printer uses an on-demand fixing method to fix the toner image onto the media. The toner image is permanently affixed to the print media by the heat and
pressure.
F-2-11
2.4.1.7 ITB cleaning block
0018-6685
LBP5050N / LBP5050
The residual (waste) toner is cleared from the ITB surface.
Step 8: ITB cleaning
The ITB cleaning roller and the cleaning brush are applied with DC positive bias to charge the residual toner positive.
As the primary transfer pad is also applied with DC positive bias, the positively charged residual toner is reverse transferred to the photosensitive drum from the
ITB surface.
ITB
Secondary transfer roller
Media
ITB drive roller
Media
Pressure roller
Fixing film
Toner
Fixing heater