Service manual

3. Then toner is supplied to the development section by the dual mixing
roller.
For Bk toner the process is as follows:
1. First, the development unit must be rotated to get Bk toner out of the
cartridge [A] and into the hopper section [B]. When the Bk hopper section
has rotated 180 degrees from the home position, the toner supply shutter
[C] opens as a result of gravity. While the Bk hopper is between 180 and
270 degrees, Bk toner is supplied from the cartridge [A] to the Bk hopper
[B]. Then, at some time while the Bk hopper is between 270 and 0
degrees, the toner supply shutter [C] closes again to prevent toner from
flowing backwards.
Steps 2, 3, and 4 are the same as steps 1 to 3 for C, M, and Y toner.
180 degrees
270 degrees
[A]
[B]
[C]
Detailed
Section
Descriptions
DEVELOPMENT UNIT
SM 2-83 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA