Brother MFC4820C Service Manual page 116

Disassembly of the ASF
(8) Pull the lock arm outwards and remove the registration sensor actuator and its spring.
(9) Remove the ASF switch from the latch on the right end of the ASF, then disconnect its harness
from the sensor PCB and take it out of the harness guide.
(10) Unlatch the sensor PCB.
(11) Warp either of the "x" locks on the ASF cover outwards and remove the shield cover.
(12) Remove the pawled bushing from the left end of the ASF core shaft by pulling its pawls
outwards. Pull the pawl of the ASF roller ASSY outwards (in the direction of arrow
pull the ASF core shaft out to the right ( ). The ASF roller ASSY will come off.
(13) Remove two screws "d" from the paper tray base and pull it up and to the rear.
(14) Warp the center of the lower chute and disengage the locking tabs on both ends of the lower
chute from the ASF frame.
(15) Remove four screws "e" from the center base flap ASSY. Lightly push the ASSY up from the
bottom and release the two hooks on the rear end of the ASSY.
Urethane section
Pawled bushing
ASF cover
Hooking the ASF
roller spring
(Viewed from the rear)
Paper tray base
Shield cover
"d"
"d"
"e"
"x"
Lower chute
ASF roller spring
ASF roller ASSY
6 -3 1
ASF core shaft
Center base flap ASSY
ASF roller ASSY
Pawl
Gear 50
"x"
Lock
arm
Latch
Latch
Actuator spring
"d" and "e": Taptite, bind B M2.6x8
ASF switch harness
Registration
sensor actuator
Sensor PCB
) and