Brother MFC-3340CN Service Manual page 89

(Head/carriage unit)
Paper width sensor
PF encoder disk
PF encoder
sensor
(PF sensor PCB)
Registration sensor
Registration sensor actuator
Hook switch sensor*
Lower hook
switch actuator*
Document front sensor
(Carriage PCB)
Sensors and Actuators Locations
CR encoder strip
(Maintenance unit)
Document rear sensor
Document front sensor
CR encoder sensor
Upper hook switch actuator*
(Lower cover)
(Hook switch PCB*)
3-38
Purge cam switch
Large-volume ink
cartridge sensor
Cover open sensor
(Ink cartridge PCB
in the ink refill ASSY)
Document rear sensor actuator
actuator
*FAX1940CN/1840C
Cover open
sensor actuator
Ink cartridge
sensors
Confidential