Brother MFC-3340CN Service Manual page 166

Routing C: Harnesses, flat cables and ink supply tubes on the lower cover
Ink supply
tubes
PF motor/
sensor PCB
harness
(7-pin)
Scanner
motor
harness
(4-pin)
Power supply
harness (4-pin)
ead flat cables (17- and 19-pin)
Carriage motor harness (2-pin)
MJ-main harness 1 (2-pin)
MJ-line harness (2-pin)
CIS flat cable (12-pin)
Top view
CL-main harness
Speaker harness (2-pin)
Ink cartridge/purge cam
(Main PCB)
switch harness (9-pin)
5-68
(11-pin)
Purge cam switch
harness (2-pin)
Ink cartridge PCB
harness (7-pin)
Battery harness
(4-pin)
(FAX1940CN
Confidential