Canon LBP-860, Service Manual

Page: 58 / 219

CHAPTER 2
stage
The toner image transferred to the paper in
the transfer stage is held only by
electrostatic attraction and slight physical
adhesion, so even a light touch will smear
the image.
In the fixing stage, the toner image is
fixed by heating the paper and applying
pressure. This fuses the toner particles to
the paper to make a permanent image.
Step 6
Fixing
Halogen heater
2 - 2 7
The
upper roller surface is covered with a
non-stick teflon tube. The upper and lower
roller surfaces are grounded via a diode to
prevent the negative potential of the upper
roller becoming higher than that of the
lower roller, resulting in the toner being
drawn to the lower roller. and adhering to
the lower roller surface.
5.
Drum cleaning stage
In
the transfer stage, not all the toner is
transferred to the paper. Some remains on
the photosensitive drum. This residual
toner is cleaned off in the drum cleaning
stage so that the next print image will be
clear.
Step
7
Drum cleaning
Cleaner
container
Sweeper
Figure 2-28
Prior to the next printing, the residual
toner on the drum surface is scraped away
by the cleaning blade to clean the drum
surface. The removed toner is collected in
the cleaner container.
2-21