Brother MFC640CW - 4 ] Purge Mechanism; Gears between Paper Feed Motor and Maintenance Unit

3-27 Confidential
[ 4 ] Purge mechanism
This mechanism draws its power from the paper feed motor on the left side of the main chassis.
Gears between paper feed motor and maintenance unit
As described in Section 3.2.2.1, the motor drives the PF roller gear L that rotates the paper feed
roller. At the right end of the roller (left in the illustration because the view is from the rear) is the
PF roller gear R, which always meshes with the clutch gear.
Paper feed roller
(Front)
Purge lever spring
Purge bevel gear
Purge gear
Idle gear L
Clutch gear
Clutch gear spring
PF roller gear R
Purge lever
Paper feed motor
PF roller gear L