Brother MFC8420 Service Manual page 140

(19) Remove the three cleaner spring S.
(20) Remove the three cleaner pinch roller ASSY S.
(21) Remove the cleaner spring L.
(22) Remove the cleaner pinch roller ASSY L.
Cleaner spring S
Cleaner pinch roller ASSY L
Cleaner pinch roller ASSY S
NOTE:
• When re-assembling the cleaner pinch roller ASSY complete with the cleaner spring onto
the FU frame lower, ensure the direction of the roller is correct referring to the figure above.
• Ensure that the both springs are seated correctly in the locating channel and does not
protrude from either end.
• Ensure also that the proper spring is fixed to the each cleaner pinch roller ASSY because
the both springs are NOT identical with each other.
Cleaner spring
Cleaner pinch roller ASSY
Cleaner spring L
Fig. 4-105
Fig. 4-106
4-59
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
Cleaner spring S
Cleaner pinch roller ASSY S
FU frame lower
FU frame lower
SERVICE MANUAL