Brother MFC5490CN - Disassembly Flowchart; Sensors, Encoders, and Thermistors

6-5
Confidential
 Disassembly Flowchart
Control panel ASSY
Scanner cover
(Scanner unit)
(including ADF)
ADF & document
cover ASSY
Scanner cover
support/damper
Speaker
Main PCB shield
Main PCB
CR encoder strip
Head cover
Print head
Ink refill ASSY
Maintenance unit
Flushing box
Power supply PCB
MJ PCB
Carriage PCB ASSY
Ink absorber felt
Ink absorber box
PF encoder disk
Jam clear cover
Engine unit
Media module cover
Ink cartridge cover
Front cover
Main PCB
shield frame
Side cover L/R
Disassembly of
ADF & document
cover ASSY
Upper cover
Paper tray ASSY
80/80
30/30
25/25
35/55
10/10
10/20
15/15
15/15
5/5
5/5
5/5
5/5
5/10
5/10
30/10
20/20
15/20
30/50
20/50
50/50
35/35
35/35
35/40- / -
30/40
15/10
10/10
10/10
45/45
Disassembly/reassembly
standard time (seconds)
6.1.2
6.1.2
6.1.7
6.1.7
6.1.8
6.1.8
6.1.7
6.1.9
6.1.9
6.1.9
6.1.11
6.1.11
6.1.11
6.1.11 6.1.14 6.1.13
6.1.13
6.1.1
6.1.10
6.1.10
6.1.8
(Note 5) (Note 6)
(Note 4)
(Note 3)
(Note 2)
(Note 1)
6.1.11
6.1.12 6.1.12
6.1.12
6.1.5, 6.1.6
6.1.3 6.1.4 6.1.15
(BHL9_A4_Flow)
Sensors, encoders, and thermistors
(Note 1) The ADF unit has the document sensor PCB.
(Note 2) The control panel PCB has the scanner cover sensor and ink cartridge cover sensor.
(Note 3) The engine unit has the registration sensor PCB and PF encoder PCB (having PF encoder sensor).
(Note 4) The carriage PCB in the head/carriage unit has the paper width sensor, head thermistor, and CR encoder sensor.
(Note 5) The ink refill ASSY has the ink cartridge detection sensor PCB (having four ink cartridge detection sensors) and ink
empty sensor PCB (having four ink empty sensors and the casing internal temperature thermistor).
(Note 6) The maintenance unit has the purge cam switch and cap lift cam switch. The ASF motor unit has the ASF encoder
sensor.