Process Unit Section; Development Section - Kyocera FS-6020 Service Manual

2-1-2 Process unit section

For the process unit, many sections related to the printing process are gathered up as one unit such as the development
section, main charger section, drum section, cleaning section and toner container TK-400. The electrical part in the
process unit is only the zener diode PWB that sets the grid electrostatic potential, and only the high voltage terminal of
the main charger and the drive link with the drive group gears are provided between the process unit and main unit frame
because the toner sensor is equipped with the main unit frame side.

(1) Development section

Development section consists of the parts in the following illustration. The toner supplied from the toner container TK-400
is agitated after developing and agitating at the mixer section that consists of the development agitator's front to
electrostatically charge and sent to the developing roller. The development roller consists of the rotating developing
sleeve and the developing magnet (roller) that is fixed inside of the sleeve. The toner is attracted by a magnetic force of
the developing magnet to the surface of the developing sleeve and then exposed to the drum side by the rotation of the
developing sleeve.
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Figure 2-1-7 Development section
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1 Developing sleeve
2 Developing magnet
3 Developing blade
4 Rear developing agitator
5 Front developing agitator
6 Developing guide
7 Toner container TK-400
FS-6020
2-1-5