Brother MFC9100C Service Manual page 88

1.20 Flushing Foams
After the main PCB is replaced with any other one, you need to replace the flushing foams with
new ones.
(1) Remove the flushing foam gutter.
(2) Pull out the upper and lower flushing foams from the flushing foams pack.
NOTE: Use vinyl gloves to prevent your hands from becoming dirty.
NOTE: For the removal of the flushing foams pack, refer to Subsection 1.22.
IV - 47