Theory of Operation Ver. 8.0 Jun. 2008
B. IU/K
• For IU/K, a black toner filter is installed under the IU and toner particles are trapped by
the K toner suction fan motor during development.
• As the K suction black toner filter and the IU unit come together as one piece, they are
replaced together.
K toner suction fan motor (FM8)
12. Developing section
Black toner filter
Vent
IU
A00JT2C027DA
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