Epson ColorPage EPL-C8200 Service Manual page 70

EPSON ColorPage EPL-C8200


The carrier looses its electrical charges. This occurs because the
surface of a carrier particle may be covered with a toner particle or
may be damaged by agitation. To maintain the electrical charge of
carrier particles, a small amount of carrier is mixed in the toner;
when the toner is dispensed, carrier is also supplied.
The carrier in the Developer Assembly, however, is collected into a
different chamber in the Toner Cartridge, so that the developer
(mostly carrier) is replaced little by little, resulting in a constant
electrical charge being maintained. This is called the trickle
development method. The trickle development method uses the
rotation of the Rotary Frame Assembly.
The trickle development process is as follows:
1. An L-shaped pipe is inserted in the developer.
2. A small amount of carrier moves into the pipe.
3. The carrier is sucked in and moves deeper into the pipe.
4. The carrier is collected in the Toner Cartridge.
Chapter 2 Operating Principles
Figure 2-8. Development (3)
Revision A
2-7