Step 7: Fusing
To create the permanent image, the paper passes through heated, pressurized rollers to melt the toner onto
the page. Fusing bias is added to the pressure roller to improve the print quality.
Figure 1-19 Fusing
Fuser heater
Paper
Pressure roller
Fuser film
Fuser bias Fuser bias
Brush
Step 8: Drum cleaning
The cleaning blade scrapes the residual toner o the surface of the photosensitive drum, and toner is
deposited in the toner-collection portion of the cartridge.
Figure 1-20 Drum cleaning
Photosensitive
drum
Cleaning blade
Residual toner collection box
28 Chapter 1 Theory of operation ENWW
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