Ink Refill Assy - Brother MFC-3340CN Service Manual

5.1.16 Ink Refill ASSY

(1) Take the ink supply tubes routed on the lower cover out of the machine.
(2) Press the latch provided on the front side of the ink cartridge base inwards with a flat
screwdriver and lift the ink cartridge base up and out of the lower cover.
NOTE: Inside the ink cartridge base is an ink absorber foam that may be stained with ink. If it
is excessively stained, replace the ink refill ASSY.
(3) Disconnect the ink cartridge/purge cam switch harness from the main PCB and the ink
cartridge PCB.
(4) Disconnect the large-volume ink cartridge sensor harness from the ink cartridge PCB and
remove the sensor from the ink refill ASSY.
Large-volume
ink cartridge sensor
(Head joint)
Protective cartridges
Ink refill ASSY
(Ink cartridge base)
(Ink supply tubes)
5-43
Latch
(Ink cartridge PCB)
Ink cartridge/purge cam
switch harness
Lower cover
Main PCB
Confidential